Revert minSdkVersion to 21 to fix Robolectric tests.

FIXME: Desugaring ConcurrentHashMap.newKeySet() requires
desugar_jdk_libs version 2, which requires bumping the Android Gradle
plugin version. This seems to have broken Gradle Witness.

.gitlab-ci.yml

@@ -7,7 +7,6 @@ stages:
 
 variables:
   GIT_SUBMODULE_STRATEGY: recursive
-  JAVA_HOME: /usr/lib/jvm/java-17-openjdk-amd64
 
 workflow:
   # when to create a CI pipeline
@@ -105,3 +104,12 @@ mailbox integration test:
   script:
     - (cd briar-mailbox; git fetch; git reset --hard origin/main)
     - MAILBOX_INTEGRATION_TESTS=true ./gradlew --info mailbox-integration-tests:test
+
+db_performance_comparison_test:
+  extends: .base-test
+  stage: optional_tests
+  script:
+    - OPTIONAL_TESTS=org.briarproject.bramble.db.H2SqliteDatabasePerformanceComparisonTest ./gradlew --info -Djava.security.egd=file:/dev/urandom :bramble-core:test --tests H2SqliteDatabasePerformanceComparisonTest
+  rules:
+    - when: manual
+

.idea/codeStyles/Project.xml

@@ -4,7 +4,6 @@
       <option name="ANNOTATION_PARAMETER_WRAP" value="1" />
       <option name="IMPORT_LAYOUT_TABLE">
         <value>
-          <package name="" withSubpackages="true" static="false" module="true" />
           <package name="android" withSubpackages="true" static="false" />
           <emptyLine />
           <package name="com" withSubpackages="true" static="false" />
@@ -29,11 +28,15 @@
       <option name="JD_ALIGN_EXCEPTION_COMMENTS" value="false" />
     </JavaCodeStyleSettings>
     <JetCodeStyleSettings>
+      <option name="PACKAGES_TO_USE_STAR_IMPORTS">
+        <value />
+      </option>
+      <option name="NAME_COUNT_TO_USE_STAR_IMPORT" value="2147483647" />
+      <option name="NAME_COUNT_TO_USE_STAR_IMPORT_FOR_MEMBERS" value="2147483647" />
       <option name="CODE_STYLE_DEFAULTS" value="KOTLIN_OFFICIAL" />
     </JetCodeStyleSettings>
     <codeStyleSettings language="Groovy">
       <indentOptions>
-        <option name="CONTINUATION_INDENT_SIZE" value="4" />
         <option name="USE_TAB_CHARACTER" value="true" />
         <option name="SMART_TABS" value="true" />
       </indentOptions>

bramble-android/.gitignore

@@ -4,3 +4,4 @@ build
 .settings
 src/main/res/raw/*.zip
 src/main/jniLibs
+!src/main/jniLibs/.gitkeep

bramble-android/build.gradle

@@ -3,18 +3,20 @@ apply plugin: 'witness'
 apply from: 'witness.gradle'
 
 android {
-	compileSdkVersion 35
-	buildToolsVersion '35.0.0'
+	compileSdkVersion 33
+	buildToolsVersion '33.0.0'
+
 	packagingOptions {
-		jniLibs {
-			keepDebugSymbols += ['**/*.so']
-		}
+		doNotStrip '**/*.so'
 	}
 
-
 	defaultConfig {
+		// FIXME: sqlite-jdbc-crypt uses __register_atfork which is only available on API >= 23.
+		//  We might be able to solve this by recompiling (or asking upstream to recompile)
 		minSdkVersion 21
-		targetSdkVersion 35
+		targetSdkVersion 33
+		versionCode 10506
+		versionName "1.5.6"
 		consumerProguardFiles 'proguard-rules.txt'
 
 		testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
@@ -25,19 +27,23 @@ android {
 		sourceCompatibility JavaVersion.VERSION_1_8
 		targetCompatibility JavaVersion.VERSION_1_8
 	}
-	namespace 'org.briarproject.bramble'
-	lint {
-		warning 'LintError', 'InvalidPackage', 'MissingPermission', 'InlinedApi', 'ObsoleteSdkInt', 'Override', 'NewApi', 'UnusedAttribute'
-	}
 
+	lintOptions {
+		// FIXME
+		warning "LintError"
+		warning "InvalidPackage"
+		warning "MissingPermission"
+		warning "InlinedApi", "ObsoleteSdkInt", "Override", "NewApi", "UnusedAttribute"
+	}
 }
 
 configurations {
 	tor
+	sqliteJdbcCrypt
 }
 
 dependencies {
-	api 'org.briarproject:dont-kill-me-lib:0.2.8'
+	api 'org.briarproject:dont-kill-me-lib:0.2.7'
 
 	// In theory this dependency shouldn't be needed, but without it Android Studio's linter will
 	// complain about unresolved symbols for bramble-api test classes in bramble-android tests,
@@ -51,7 +57,10 @@ dependencies {
 	implementation "org.briarproject:onionwrapper-android:$onionwrapper_version"
 
 	tor "org.briarproject:tor-android:$tor_version"
-	tor "org.briarproject:lyrebird-android:$lyrebird_version"
+	tor "org.briarproject:obfs4proxy-android:$obfs4proxy_version"
+	tor "org.briarproject:snowflake-android:$snowflake_version"
+
+	sqliteJdbcCrypt "io.github.willena:sqlite-jdbc:$sqlite_jdbc_crypt_version"
 
 	annotationProcessor "com.google.dagger:dagger-compiler:$dagger_version"
 
@@ -65,26 +74,50 @@ dependencies {
 	testImplementation "org.jmock:jmock-imposters:$jmock_version"
 }
 
-def torLibsDir = 'src/main/jniLibs'
+def jniLibsDir = 'src/main/jniLibs'
 
-task cleanTorBinaries {
-	outputs.dir torLibsDir
+task cleanJniLibs {
+	inputs.dir jniLibsDir
+	outputs.dir jniLibsDir
 	doLast {
-		delete fileTree(torLibsDir)
+		delete fileTree(jniLibsDir).filter { it.name.endsWith('.so') }
 	}
 }
 
-clean.dependsOn cleanTorBinaries
+clean.dependsOn cleanJniLibs
 
-task unpackTorBinaries {
-	outputs.dir torLibsDir
+task unpackJniLibs {
+	outputs.dir jniLibsDir
 	doLast {
+		// Tor
 		copy {
 			from configurations.tor.collect { zipTree(it) }
-			into torLibsDir
+			into jniLibsDir
+		}
+		// sqlite-jdbc-crypt
+		def archMap = [
+				aarch64: 'arm64-v8a',
+				arm    : 'armeabi-v7a',
+				x86    : 'x86',
+				x86_64 : 'x86_64'
+		]
+		configurations.sqliteJdbcCrypt.collect { File artifact ->
+			zipTree(artifact).each { File f ->
+				for (String arch : archMap.keySet()) {
+					if (f.absolutePath.endsWith("/Linux-Android/$arch/libsqlitejdbc.so")) {
+						def archDir = new File(jniLibsDir, archMap.get(arch))
+						archDir.mkdirs()
+						copy {
+							from f
+							into archDir
+						}
+						break
+					}
+				}
+			}
 		}
 	}
-	dependsOn cleanTorBinaries
+	dependsOn cleanJniLibs
 }
 
-preBuild.dependsOn unpackTorBinaries
+preBuild.dependsOn unpackJniLibs

bramble-android/proguard-rules.txt

@@ -6,6 +6,9 @@
 -dontwarn org.h2.**
 -dontnote org.h2.**
 
+# Keep sqlite-jdbc-crypt classes that are loaded via reflection or accessed via JNI
+-keep class org.sqlite.** { *; }
+
 -keep class dagger.** { *; }
 -dontwarn dagger.**
 -dontnote dagger.**

bramble-android/src/main/AndroidManifest.xml

@@ -1,5 +1,6 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-	xmlns:tools="http://schemas.android.com/tools">
+	xmlns:tools="http://schemas.android.com/tools"
+	package="org.briarproject.bramble">
 
 	<uses-feature
 		android:name="android.hardware.bluetooth"
@@ -7,8 +8,10 @@
 
 	<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
 	<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
-	<!-- The BLUETOOTH permission was supposed to be removed in API 31 but is still needed on some Xiaomi/Redmi/POCO devices running API 31 and Nubia devices running API 32/33 -->
-	<uses-permission android:name="android.permission.BLUETOOTH" />
+	<!-- The BLUETOOTH permission was supposed to be removed in API 31 but is still needed on some Xiaomi/Redmi/POCO devices running API 31 and Nubia devices running API 32 -->
+	<uses-permission
+		android:name="android.permission.BLUETOOTH"
+		android:maxSdkVersion="32" />
 	<uses-permission
 		android:name="android.permission.BLUETOOTH_ADMIN"
 		android:maxSdkVersion="30" />

bramble-android/src/main/java/org/briarproject/bramble/battery/AndroidBatteryManager.java

@@ -30,7 +30,6 @@ import static android.os.PowerManager.ACTION_LOW_POWER_STANDBY_ENABLED_CHANGED;
 import static android.os.PowerManager.ACTION_POWER_SAVE_MODE_CHANGED;
 import static java.util.logging.Level.INFO;
 import static java.util.logging.Logger.getLogger;
-import static org.briarproject.bramble.util.AndroidUtils.registerReceiver;
 
 class AndroidBatteryManager implements BatteryManager, Service {
 
@@ -53,7 +52,7 @@ class AndroidBatteryManager implements BatteryManager, Service {
 	public boolean isCharging() {
 		// Get the sticky intent for ACTION_BATTERY_CHANGED
 		IntentFilter filter = new IntentFilter(ACTION_BATTERY_CHANGED);
-		Intent i = registerReceiver(appContext, null, filter, false);
+		Intent i = appContext.registerReceiver(null, filter);
 		if (i == null) return false;
 		int status = i.getIntExtra(EXTRA_PLUGGED, 0);
 		return status != 0;
@@ -72,7 +71,7 @@ class AndroidBatteryManager implements BatteryManager, Service {
 			filter.addAction(ACTION_LOW_POWER_STANDBY_ENABLED_CHANGED);
 			filter.addAction(ACTION_DEVICE_LIGHT_IDLE_MODE_CHANGED);
 		}
-		registerReceiver(appContext, batteryReceiver, filter, false);
+		appContext.registerReceiver(batteryReceiver, filter);
 	}
 
 	@Override

bramble-android/src/main/java/org/briarproject/bramble/network/AndroidNetworkManager.java

@@ -55,7 +55,6 @@ import static java.util.concurrent.TimeUnit.SECONDS;
 import static java.util.logging.Level.INFO;
 import static java.util.logging.Level.WARNING;
 import static java.util.logging.Logger.getLogger;
-import static org.briarproject.bramble.util.AndroidUtils.registerReceiver;
 import static org.briarproject.bramble.util.LogUtils.logException;
 import static org.briarproject.nullsafety.NullSafety.requireNonNull;
 
@@ -104,7 +103,7 @@ class AndroidNetworkManager implements NetworkManager, Service {
 		filter.addAction(WIFI_AP_STATE_CHANGED_ACTION);
 		filter.addAction(WIFI_P2P_THIS_DEVICE_CHANGED_ACTION);
 		if (SDK_INT >= 23) filter.addAction(ACTION_DEVICE_IDLE_MODE_CHANGED);
-		registerReceiver(app, networkStateReceiver, filter, false);
+		app.registerReceiver(networkStateReceiver, filter);
 	}
 
 	@Override

bramble-android/src/main/java/org/briarproject/bramble/plugin/bluetooth/AndroidBluetoothPlugin.java

@@ -56,7 +56,6 @@ import static java.util.logging.Level.INFO;
 import static java.util.logging.Level.WARNING;
 import static java.util.logging.Logger.getLogger;
 import static org.briarproject.bramble.util.AndroidUtils.hasBtConnectPermission;
-import static org.briarproject.bramble.util.AndroidUtils.registerReceiver;
 import static org.briarproject.bramble.util.PrivacyUtils.scrubMacAddress;
 
 @MethodsNotNullByDefault
@@ -113,7 +112,7 @@ class AndroidBluetoothPlugin extends
 		filter.addAction(ACTION_STATE_CHANGED);
 		filter.addAction(ACTION_SCAN_MODE_CHANGED);
 		receiver = new BluetoothStateReceiver();
-		registerReceiver(app, receiver, filter, true);
+		app.registerReceiver(receiver, filter);
 	}
 
 	@Override
@@ -238,7 +237,7 @@ class AndroidBluetoothPlugin extends
 		filter.addAction(ACTION_DISCOVERY_STARTED);
 		filter.addAction(ACTION_DISCOVERY_FINISHED);
 		filter.addAction(ACTION_FOUND);
-		registerReceiver(app, receiver, filter, true);
+		app.registerReceiver(receiver, filter);
 		try {
 			if (adapter.startDiscovery()) {
 				long now = clock.currentTimeMillis();

bramble-android/src/main/java/org/briarproject/bramble/plugin/tcp/AndroidLanTcpPlugin.java

@@ -201,7 +201,6 @@ class AndroidLanTcpPlugin extends LanTcpPlugin {
 	@Nullable
 	private InetAddress getIpv6AddressForInterface(InetAddress ipv4) {
 		try {
-			// We may get an NPE from getByInetAddress() on Android 11
 			NetworkInterface iface = NetworkInterface.getByInetAddress(ipv4);
 			if (iface == null) return null;
 			for (InetAddress addr : list(iface.getInetAddresses())) {
@@ -209,7 +208,7 @@ class AndroidLanTcpPlugin extends LanTcpPlugin {
 			}
 			// No suitable address
 			return null;
-		} catch (SocketException | NullPointerException e) {
+		} catch (SocketException e) {
 			logException(LOG, WARNING, e);
 			return null;
 		}

bramble-android/src/main/java/org/briarproject/bramble/plugin/tor/AndroidTorPluginFactory.java

@@ -31,6 +31,7 @@ import javax.annotation.concurrent.Immutable;
 import javax.inject.Inject;
 import javax.net.SocketFactory;
 
+import static android.os.Build.VERSION.SDK_INT;
 import static org.briarproject.bramble.util.AndroidUtils.getSupportedArchitectures;
 
 @Immutable
@@ -85,10 +86,15 @@ public class AndroidTorPluginFactory extends TorPluginFactory {
 		TorWrapper tor = new AndroidTorWrapper(app, wakeLockManager,
 				ioExecutor, eventExecutor, architecture, torDirectory,
 				torSocksPort, torControlPort);
+		// Android versions 7.1 and newer can verify Let's Encrypt TLS certs
+		// signed with the IdentTrust DST Root X3 certificate. Older versions
+		// of Android consider the certificate to have expired at the end of
+		// September 2021.
+		boolean canVerifyLetsEncryptCerts = SDK_INT >= 25;
 		return new TorPlugin(ioExecutor, wakefulIoExecutor,
 				networkManager, locationUtils, torSocketFactory,
 				circumventionProvider, batteryManager, backoff,
 				torRendezvousCrypto, tor, callback, MAX_LATENCY,
-				MAX_IDLE_TIME);
+				MAX_IDLE_TIME, canVerifyLetsEncryptCerts);
 	}
 }

bramble-android/src/main/java/org/briarproject/bramble/util/AndroidUtils.java

@@ -2,10 +2,7 @@ package org.briarproject.bramble.util;
 
 import android.annotation.SuppressLint;
 import android.bluetooth.BluetoothAdapter;
-import android.content.BroadcastReceiver;
 import android.content.Context;
-import android.content.Intent;
-import android.content.IntentFilter;
 import android.os.Build;
 import android.os.Looper;
 import android.provider.Settings;
@@ -18,30 +15,22 @@ import java.lang.reflect.Field;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 import java.util.Collection;
-import java.util.logging.Logger;
 
 import javax.annotation.Nullable;
 
 import static android.Manifest.permission.BLUETOOTH_CONNECT;
 import static android.app.PendingIntent.FLAG_IMMUTABLE;
 import static android.content.Context.MODE_PRIVATE;
-import static android.content.Context.RECEIVER_EXPORTED;
-import static android.content.Context.RECEIVER_NOT_EXPORTED;
 import static android.content.pm.PackageManager.PERMISSION_GRANTED;
 import static android.os.Build.VERSION.SDK_INT;
 import static android.os.Process.myPid;
 import static android.os.Process.myUid;
 import static java.util.Arrays.asList;
-import static java.util.logging.Level.INFO;
-import static java.util.logging.Logger.getLogger;
 import static org.briarproject.nullsafety.NullSafety.requireNonNull;
 
 @NotNullByDefault
 public class AndroidUtils {
 
-	private static final Logger LOG =
-			getLogger(AndroidUtils.class.getName());
-
 	// Fake Bluetooth address returned by BluetoothAdapter on API 23 and later
 	private static final String FAKE_BLUETOOTH_ADDRESS = "02:00:00:00:00:00";
 
@@ -67,32 +56,18 @@ public class AndroidUtils {
 		// If we don't have permission to access the adapter's address, let
 		// the caller know we can't find it
 		if (!hasBtConnectPermission(ctx)) return new Pair<>("", "");
-
-		@SuppressLint("HardwareIds")
-		String address;
 		// Return the adapter's address if it's valid and not fake
-		try {
-			address = adapter.getAddress();
-			if (isValidBluetoothAddress(address)) {
-				return new Pair<>(address, "adapter");
-			}
-		} catch (SecurityException e) {
-			if (LOG.isLoggable(INFO)) {
-				LOG.info("Security exception when getting BT address: " +
-						e.getMessage());
-			}
+		@SuppressLint("HardwareIds")
+		String address = adapter.getAddress();
+		if (isValidBluetoothAddress(address)) {
+			return new Pair<>(address, "adapter");
 		}
 		// Return the address from settings if it's valid and not fake
 		if (SDK_INT < 33) {
-			try {
-				address = Settings.Secure.getString(ctx.getContentResolver(),
-						"bluetooth_address");
-				if (isValidBluetoothAddress(address)) {
-					return new Pair<>(address, "settings");
-				}
-			} catch (SecurityException e) {
-				// Some custom ROMs throw this exception on SDK_INT < 33.
-				// Fall through
+			address = Settings.Secure.getString(ctx.getContentResolver(),
+					"bluetooth_address");
+			if (isValidBluetoothAddress(address)) {
+				return new Pair<>(address, "settings");
 			}
 		}
 		// Try to get the address via reflection
@@ -161,21 +136,4 @@ public class AndroidUtils {
 		}
 		return flags;
 	}
-
-	/**
-	 * Could be replaced to a similar call in ContextCompat once we
-	 * use and upgrade to version 1.9.0 or higher of the AndroidX Core library.
-	 */
-	@Nullable
-	@SuppressLint("UnspecifiedRegisterReceiverFlag") // we specify where needed
-	public static Intent registerReceiver(Context ctx,
-			@Nullable BroadcastReceiver receiver, IntentFilter filter,
-			boolean export) {
-		if (SDK_INT >= 33) {
-			return ctx.registerReceiver(receiver, filter,
-					export ? RECEIVER_EXPORTED : RECEIVER_NOT_EXPORTED);
-		} else {
-			return ctx.registerReceiver(receiver, filter);
-		}
-	}
 }

bramble-android/witness.gradle

@@ -1,171 +1,68 @@
 dependencyVerification {
-	verify = [
-		'androidx.annotation:annotation:1.5.0:annotation-1.5.0.jar:261fb7c0210858500bab66d34354972a75166ab4182add283780b05513d6ec4a',
-		'cglib:cglib:3.2.8:cglib-3.2.8.jar:3f64de999ecc5595dc84ca8ff0879d8a34c8623f9ef3c517a53ed59023fcb9db',
-		'com.android.tools.ddms:ddmlib:31.13.0:ddmlib-31.13.0.jar:839957f961100713ea0eed628a8684cc39aa479631c36249793e6df7e0cd63d8',
-		'com.android.tools.emulator:proto:31.13.0:proto-31.13.0.jar:b77f81cc0751d79393ec4b2eb046f910d21abcd7608b5b0f5a1efea1b3243b48',
-		'com.android.tools.utp:android-device-provider-ddmlib-proto:31.13.0:android-device-provider-ddmlib-proto-31.13.0.jar:047aecdd66e106137f77a52c442f1b83db7d6e8496899800251f206c7f39de65',
-		'com.android.tools.utp:android-device-provider-ddmlib:31.13.0:android-device-provider-ddmlib-31.13.0.jar:e6c2d4674077610e165524df6e0617b6af0f91358075854d57c1072f5fb0c245',
-		'com.android.tools.utp:android-device-provider-profile-proto:31.13.0:android-device-provider-profile-proto-31.13.0.jar:3e7b098f6e3ecae31b6f7909c343b4ec09aa18d8a89f41bf92077ba4b056f453',
-		'com.android.tools.utp:android-device-provider-profile:31.13.0:android-device-provider-profile-31.13.0.jar:1aae6909dd10cf15d100f24871a5b9310fff6d2556d67c3808a1e1663ef471ca',
-		'com.android.tools.utp:android-test-plugin-host-additional-test-output-proto:31.13.0:android-test-plugin-host-additional-test-output-proto-31.13.0.jar:6ba7e6ac2208d74c1bb5f1d1464abafc6a45d8710b20455a2dc02adf8726bc83',
-		'com.android.tools.utp:android-test-plugin-host-additional-test-output:31.13.0:android-test-plugin-host-additional-test-output-31.13.0.jar:fc5f224db1b1d21642339dff08e3bcc9bb3b6753c4e6a7d5e750769a7cbbbeb4',
-		'com.android.tools.utp:android-test-plugin-host-apk-installer-proto:31.13.0:android-test-plugin-host-apk-installer-proto-31.13.0.jar:4f2b610542e91a35a396b04368a784036e42b8787021460550b9a3495bb8245b',
-		'com.android.tools.utp:android-test-plugin-host-apk-installer:31.13.0:android-test-plugin-host-apk-installer-31.13.0.jar:ad4a65f53ed841253b875b3f4232826ca83e92d2f8df2c757944824d9f9bb1e2',
-		'com.android.tools.utp:android-test-plugin-host-coverage-proto:31.13.0:android-test-plugin-host-coverage-proto-31.13.0.jar:fa86719a3dc5de465f7e0c023184414c27f8fd53a34fd557289c0bf6df340244',
-		'com.android.tools.utp:android-test-plugin-host-coverage:31.13.0:android-test-plugin-host-coverage-31.13.0.jar:6ef641e612a91dcf5c11eeec7e183ae616bccf18db968f8593c32c215ba45e6b',
-		'com.android.tools.utp:android-test-plugin-host-device-info-proto:31.13.0:android-test-plugin-host-device-info-proto-31.13.0.jar:9683ac7648a7a41be9a1349f6981592944f627164898c3c8925a0beede8bb8bb',
-		'com.android.tools.utp:android-test-plugin-host-device-info:31.13.0:android-test-plugin-host-device-info-31.13.0.jar:bbf196a617d5f501f2696bfeabbee4b687b4e809d8d56d9c74610094f8a007cb',
-		'com.android.tools.utp:android-test-plugin-host-emulator-control-proto:31.13.0:android-test-plugin-host-emulator-control-proto-31.13.0.jar:a4f34aae0f9ffa026dbf7151436dd7ae53becb72622b40f2c479cac8943d9319',
-		'com.android.tools.utp:android-test-plugin-host-emulator-control:31.13.0:android-test-plugin-host-emulator-control-31.13.0.jar:43f5a73b559758c1d3a119277a109ea552a3e4f75368842fb79af7308ad22465',
-		'com.android.tools.utp:android-test-plugin-host-logcat-proto:31.13.0:android-test-plugin-host-logcat-proto-31.13.0.jar:c1f6ebbacdad559b6efe4eaa29561552b33156395f069cd9703fda09c462dea6',
-		'com.android.tools.utp:android-test-plugin-host-logcat:31.13.0:android-test-plugin-host-logcat-31.13.0.jar:be7ccad0a7b8d062782b769030e17d573e96d302196b2f9985ec51cb42b6b76b',
-		'com.android.tools.utp:android-test-plugin-result-listener-gradle-proto:31.13.0:android-test-plugin-result-listener-gradle-proto-31.13.0.jar:d429b9312dffa0503381d1ee1b18a999bd901e7456612b2fb48c6a5d5a2caf88',
-		'com.android.tools.utp:android-test-plugin-result-listener-gradle:31.13.0:android-test-plugin-result-listener-gradle-31.13.0.jar:a1b95cbed5fd4b8c6a44e7db4642f1acc87f5bff956350e8ae644b505029c120',
-		'com.android.tools.utp:utp-common:31.13.0:utp-common-31.13.0.jar:cde678a64b13041cdd2cc9dad1685990a1d090fb04ff5da2261ff75a83598106',
-		'com.android.tools:annotations:31.13.0:annotations-31.13.0.jar:3b4bb9620c17d19e5bd91ac1988080553573b4c3b739fdd92416f42f2daf3e78',
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-		'org.briarproject:lyrebird-android:0.6.2:lyrebird-android-0.6.2.jar:2d70a38393ee6f1760a65a33dd971210efa06b5a355ebea829196b61fd9fd11a',
-		'org.briarproject:null-safety:0.1:null-safety-0.1.jar:161760de5e838cb982bafa973df820675d4397098e9a91637a36a306d43ba011',
-		'org.briarproject:onionwrapper-android:0.1.4:onionwrapper-android-0.1.4.aar:15231f0b2ad44df8eb1dd362a989ba3f88ebdc9b02a9128daa72a8da83651bf0',
-		'org.briarproject:onionwrapper-core:0.1.4:onionwrapper-core-0.1.4.jar:d0a48de7198d48eb0182a25d109bc06811484d1da799c6dfa5e2581285880a49',
-		'org.briarproject:tor-android:0.4.8.21:tor-android-0.4.8.21.jar:0b797b2a4f07430b4465f784ee579c8c19b5def921a655caba4622b232ae2118',
-		'org.checkerframework:checker-compat-qual:2.5.5:checker-compat-qual-2.5.5.jar:11d134b245e9cacc474514d2d66b5b8618f8039a1465cdc55bbc0b34e0008b7a',
-		'org.checkerframework:checker-qual:3.33.0:checker-qual-3.33.0.jar:e316255bbfcd9fe50d165314b85abb2b33cb2a66a93c491db648e498a82c2de1',
-		'org.checkerframework:checker-qual:3.41.0:checker-qual-3.41.0.jar:2f9f245bf68e4259d610894f2406dc1f6363dc639302bd566e8272e4f4541172',
-		'org.checkerframework:checker-qual:3.43.0:checker-qual-3.43.0.jar:3fbc2e98f05854c3df16df9abaa955b91b15b3ecac33623208ed6424640ef0f6',
-		'org.codehaus.mojo:animal-sniffer-annotations:1.23:animal-sniffer-annotations-1.23.jar:9ffe526bf43a6348e9d8b33b9cd6f580a7f5eed0cf055913007eda263de974d0',
-		'org.codehaus.mojo:animal-sniffer-annotations:1.24:animal-sniffer-annotations-1.24.jar:c720e6e5bcbe6b2f48ded75a47bccdb763eede79d14330102e0d352e3d89ed92',
-		'org.hamcrest:hamcrest-core:2.1:hamcrest-core-2.1.jar:e09109e54a289d88506b9bfec987ddd199f4217c9464132668351b9a4f00bee9',
-		'org.hamcrest:hamcrest-library:2.1:hamcrest-library-2.1.jar:b7e2b6895b3b679f0e47b6380fda391b225e9b78505db9d8bdde8d3cc8d52a21',
-		'org.hamcrest:hamcrest:2.1:hamcrest-2.1.jar:ba93b2e3a562322ba432f0a1b53addcc55cb188253319a020ed77f824e692050',
-		'org.jetbrains.kotlin:kotlin-reflect:1.6.10:kotlin-reflect-1.6.10.jar:3277ac102ae17aad10a55abec75ff5696c8d109790396434b496e75087854203',
-		'org.jetbrains.kotlin:kotlin-reflect:1.8.21:kotlin-reflect-1.8.21.jar:8a6cd5a3cf092acee274ce2c444dc36eefdb631579859dd4d857b3309a529c91',
-		'org.jetbrains.kotlin:kotlin-stdlib-common:1.8.21:kotlin-stdlib-common-1.8.21.jar:6a44c9ecc9d7754d9e943fb1e3588c74d4a3f1785be51074f49d6c5723682a73',
-		'org.jetbrains.kotlin:kotlin-stdlib-common:1.9.0:kotlin-stdlib-common-1.9.0.jar:283274204bd7c020789ec46f8f8e72af4244d7f550b3392a57e5ca006ad7aa2c',
-		'org.jetbrains.kotlin:kotlin-stdlib-common:1.9.10:kotlin-stdlib-common-1.9.10.jar:cde3341ba18a2ba262b0b7cf6c55b20c90e8d434e42c9a13e6a3f770db965a88',
-		'org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.8.20:kotlin-stdlib-jdk7-1.8.20.jar:af1ec40c3b951afdcc0c2a0173c7b81763c5281c2d5bafbf0a8544a24c5dcc0c',
-		'org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.9.0:kotlin-stdlib-jdk7-1.9.0.jar:b7979a7aac94055f0d9f1fd3b47ce5ffe1cb6032a842ba9fbe7186f085289178',
-		'org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.9.10:kotlin-stdlib-jdk7-1.9.10.jar:ac6361bf9ad1ed382c2103d9712c47cdec166232b4903ed596e8876b0681c9b7',
-		'org.jetbrains.kotlin:kotlin-stdlib-jdk7:2.2.0:kotlin-stdlib-jdk7-2.2.0.jar:0d10bc0d42b8605f23629a3f31ea27c19cdbca9dcdf4f53f6d22cd6366836d18',
-		'org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.8.20:kotlin-stdlib-jdk8-1.8.20.jar:e398b67977622718bf18ff99b739c7d9da060f33fb458a2e25203221c16af010',
-		'org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.9.0:kotlin-stdlib-jdk8-1.9.0.jar:a59fa24fdf1ffb594baecdbf0fd10010f977cea10236d487fe3464977a7377fa',
-		'org.jetbrains.kotlin:kotlin-stdlib-jdk8:2.2.0:kotlin-stdlib-jdk8-2.2.0.jar:adc16648dbbcf35b0d10e7ec301c35d746d1c2fe460c606aba59f12b117cf9b0',
-		'org.jetbrains.kotlin:kotlin-stdlib:1.8.21:kotlin-stdlib-1.8.21.jar:042a1cd1ac976cdcfe5eb63f1d8e0b0b892c9248e15a69c8cfba495d546ea52a',
-		'org.jetbrains.kotlin:kotlin-stdlib:1.9.0:kotlin-stdlib-1.9.0.jar:35aeffbe2db5aa446072cee50fcee48b7fa9e2fc51ca37c0cc7d7d0bc39d952e',
-		'org.jetbrains.kotlin:kotlin-stdlib:1.9.10:kotlin-stdlib-1.9.10.jar:55e989c512b80907799f854309f3bc7782c5b3d13932442d0379d5c472711504',
-		'org.jetbrains.kotlin:kotlin-stdlib:1.9.20:kotlin-stdlib-1.9.20.jar:28a35bcdff46d864f80f346a617e486284b208d17378c41900dfb1de95a90e6c',
-		'org.jetbrains.kotlin:kotlin-stdlib:2.2.0:kotlin-stdlib-2.2.0.jar:65d12d85a3b865c160db9147851712a64b10dadd68b22eea22a95bf8a8670dca',
-		'org.jetbrains.kotlinx:atomicfu-jvm:0.22.0:atomicfu-jvm-0.22.0.jar:2da073727f3ab5e5584e74c12e11519c908ae2dfaf6aeb25ded42b6682297882',
-		'org.jetbrains.kotlinx:kotlinx-coroutines-core-jvm:1.7.3:kotlinx-coroutines-core-jvm-1.7.3.jar:1ab3acc38f3e7355c4f9d1ec62107a46fa73c899f3070d055e5d4373dfe67e12',
-		'org.jetbrains:annotations:13.0:annotations-13.0.jar:ace2a10dc8e2d5fd34925ecac03e4988b2c0f851650c94b8cef49ba1bd111478',
-		'org.jetbrains:annotations:23.0.0:annotations-23.0.0.jar:7b0f19724082cbfcbc66e5abea2b9bc92cf08a1ea11e191933ed43801eb3cd05',
-		'org.jmock:jmock-imposters:2.12.0:jmock-imposters-2.12.0.jar:3b836269745a137c9b2347e8d7c2104845b126ef04f012d6bfd94f1a7dea7b09',
-		'org.jmock:jmock-junit4:2.12.0:jmock-junit4-2.12.0.jar:3233062fc889637c151a24f1ee086bad04321ab7d8264fef279daff0fa27205b',
-		'org.jmock:jmock-legacy:2.12.0:jmock-legacy-2.12.0.jar:dea3a9cca653d082e2fe7e40232e982fe03a9984c7d67ceff24f3e03fe580dcd',
-		'org.jmock:jmock-testjar:2.12.0:jmock-testjar-2.12.0.jar:efefbcf6cd294d0e29f0c46eb2a3380d4ca4e1763ff719c69e2f2ac62f564a04',
-		'org.jmock:jmock:2.12.0:jmock-2.12.0.jar:266d07314c0cd343c46ff8a55601272de8cf406807caf55e6f313295f83d10be',
-		'org.objenesis:objenesis:3.0.1:objenesis-3.0.1.jar:7a8ff780b9ff48415d7c705f60030b0acaa616e7f823c98eede3b63508d4e984',
-		'org.ow2.asm:asm:7.1:asm-7.1.jar:4ab2fa2b6d2cc9ccb1eaa05ea329c407b47b13ed2915f62f8c4b8cc96258d4de',
-	]
+    verify = [
+            'androidx.annotation:annotation:1.5.0:annotation-1.5.0.jar:261fb7c0210858500bab66d34354972a75166ab4182add283780b05513d6ec4a',
+            'cglib:cglib:3.2.8:cglib-3.2.8.jar:3f64de999ecc5595dc84ca8ff0879d8a34c8623f9ef3c517a53ed59023fcb9db',
+            'com.google.code.findbugs:annotations:3.0.1:annotations-3.0.1.jar:6b47ff0a6de0ce17cbedc3abb0828ca5bce3009d53ea47b3723ff023c4742f79',
+            'com.google.code.findbugs:jsr305:3.0.2:jsr305-3.0.2.jar:766ad2a0783f2687962c8ad74ceecc38a28b9f72a2d085ee438b7813e928d0c7',
+            'com.google.dagger:dagger-compiler:2.45:dagger-compiler-2.45.jar:5617dfb994537dba5b41f3744a6dd13ec3cd99789c065e0d5c6fa9f21cf7ca25',
+            'com.google.dagger:dagger-producers:2.45:dagger-producers-2.45.jar:a05abb4c3ccf6bb0f056bdcb5ef973898ecf172952ab5948a824aeea6c86ecaa',
+            'com.google.dagger:dagger-spi:2.45:dagger-spi-2.45.jar:7cd6f0b09d88e64a9c97bc80e544ab8ac8fdee9301754413585a74cf64222b27',
+            'com.google.dagger:dagger:2.45:dagger-2.45.jar:f011cae7d2c0fb7ea17c34e05bc10e768b1081a5892ad019cf1fdb0e125c49c1',
+            'com.google.devtools.ksp:symbol-processing-api:1.7.0-1.0.6:symbol-processing-api-1.7.0-1.0.6.jar:adc29417be5ca9ff42118105fea4e36d9ef44987abfc41432309371a60198941',
+            'com.google.errorprone:error_prone_annotations:2.7.1:error_prone_annotations-2.7.1.jar:cd5257c08a246cf8628817ae71cb822be192ef91f6881ca4a3fcff4f1de1cff3',
+            'com.google.errorprone:javac-shaded:9-dev-r4023-3:javac-shaded-9-dev-r4023-3.jar:65bfccf60986c47fbc17c9ebab0be626afc41741e0a6ec7109e0768817a36f30',
+            'com.google.googlejavaformat:google-java-format:1.5:google-java-format-1.5.jar:aa19ad7850fb85178aa22f2fddb163b84d6ce4d0035872f30d4408195ca1144e',
+            'com.google.guava:failureaccess:1.0.1:failureaccess-1.0.1.jar:a171ee4c734dd2da837e4b16be9df4661afab72a41adaf31eb84dfdaf936ca26',
+            'com.google.guava:guava:31.0.1-jre:guava-31.0.1-jre.jar:d5be94d65e87bd219fb3193ad1517baa55a3b88fc91d21cf735826ab5af087b9',
+            'com.google.guava:listenablefuture:9999.0-empty-to-avoid-conflict-with-guava:listenablefuture-9999.0-empty-to-avoid-conflict-with-guava.jar:b372a037d4230aa57fbeffdef30fd6123f9c0c2db85d0aced00c91b974f33f99',
+            'com.google.j2objc:j2objc-annotations:1.3:j2objc-annotations-1.3.jar:21af30c92267bd6122c0e0b4d20cccb6641a37eaf956c6540ec471d584e64a7b',
+            'com.squareup:javapoet:1.13.0:javapoet-1.13.0.jar:4c7517e848a71b36d069d12bb3bf46a70fd4cda3105d822b0ed2e19c00b69291',
+            'com.squareup:kotlinpoet:1.11.0:kotlinpoet-1.11.0.jar:2887ada1ca03dd83baa2758640d87e840d1907564db0ef88d2289c868a980492',
+            'io.github.willena:sqlite-jdbc:3.41.2.1:sqlite-jdbc-3.41.2.1.jar:fb60e7137c1791db89240701338d31ca42a0bec5508c1aab1c1131cf885f2309',
+            'javax.annotation:jsr250-api:1.0:jsr250-api-1.0.jar:a1a922d0d9b6d183ed3800dfac01d1e1eb159f0e8c6f94736931c1def54a941f',
+            'javax.inject:javax.inject:1:javax.inject-1.jar:91c77044a50c481636c32d916fd89c9118a72195390452c81065080f957de7ff',
+            'junit:junit:4.13.2:junit-4.13.2.jar:8e495b634469d64fb8acfa3495a065cbacc8a0fff55ce1e31007be4c16dc57d3',
+            'net.bytebuddy:byte-buddy:1.9.12:byte-buddy-1.9.12.jar:3688c3d434bebc3edc5516296a2ed0f47b65e451071b4afecad84f902f0efc11',
+            'net.jcip:jcip-annotations:1.0:jcip-annotations-1.0.jar:be5805392060c71474bf6c9a67a099471274d30b83eef84bfc4e0889a4f1dcc0',
+            'net.ltgt.gradle.incap:incap:0.2:incap-0.2.jar:b625b9806b0f1e4bc7a2e3457119488de3cd57ea20feedd513db070a573a4ffd',
+            'org.apache-extras.beanshell:bsh:2.0b6:bsh-2.0b6.jar:a17955976070c0573235ee662f2794a78082758b61accffce8d3f8aedcd91047',
+            'org.briarproject:dont-kill-me-lib:0.2.7:dont-kill-me-lib-0.2.7.aar:8a9540941fd927e1c127096a7a9b4aa61ce2f2965d2e24f849be92f9e57213c4',
+            'org.briarproject:jtorctl:0.5:jtorctl-0.5.jar:43f8c7d390169772b9a2c82ab806c8414c136a2a8636c555e22754bb7260793b',
+            'org.briarproject:null-safety:0.1:null-safety-0.1.jar:161760de5e838cb982bafa973df820675d4397098e9a91637a36a306d43ba011',
+            'org.briarproject:obfs4proxy-android:0.0.14-tor2:obfs4proxy-android-0.0.14-tor2.jar:a0a93770d6760ce57d9dbd31cc7177687374e00c3361dac22ab75e3b6e0f289e',
+            'org.briarproject:onionwrapper-android:0.0.5:onionwrapper-android-0.0.5.aar:d761854dac454616b3e0ca099b2cd17060365ce4316afe495cc7ae86b6c81d15',
+            'org.briarproject:onionwrapper-core:0.0.5:onionwrapper-core-0.0.5.jar:9071678323535cb3dfe0f3add96066037db43ea024333eba0117c759bcbd8d63',
+            'org.briarproject:snowflake-android:2.5.1:snowflake-android-2.5.1.jar:88ec81c17b1b6fa884d06839dec0330e328b45c89f88c970a213ce91ca8eac87',
+            'org.briarproject:tor-android:0.4.7.14:tor-android-0.4.7.14.jar:d39faa3a8abb116136c191c6ebadf8ea0e1f3e4785076d2c66a7b3b0f26988a2',
+            'org.checkerframework:checker-compat-qual:2.5.5:checker-compat-qual-2.5.5.jar:11d134b245e9cacc474514d2d66b5b8618f8039a1465cdc55bbc0b34e0008b7a',
+            'org.checkerframework:checker-qual:3.12.0:checker-qual-3.12.0.jar:ff10785ac2a357ec5de9c293cb982a2cbb605c0309ea4cc1cb9b9bc6dbe7f3cb',
+            'org.hamcrest:hamcrest-core:2.1:hamcrest-core-2.1.jar:e09109e54a289d88506b9bfec987ddd199f4217c9464132668351b9a4f00bee9',
+            'org.hamcrest:hamcrest-library:2.1:hamcrest-library-2.1.jar:b7e2b6895b3b679f0e47b6380fda391b225e9b78505db9d8bdde8d3cc8d52a21',
+            'org.hamcrest:hamcrest:2.1:hamcrest-2.1.jar:ba93b2e3a562322ba432f0a1b53addcc55cb188253319a020ed77f824e692050',
+            'org.jacoco:org.jacoco.agent:0.8.8:org.jacoco.agent-0.8.8.jar:072ecbd496896623899a696fff12c01c1615f737616d2792e6d0e10cdf8a610d',
+            'org.jacoco:org.jacoco.ant:0.8.8:org.jacoco.ant-0.8.8.jar:02e33bd2c48dc0be67c2fea84d43beececfd400da6797c58153253d4c30aca15',
+            'org.jacoco:org.jacoco.core:0.8.8:org.jacoco.core-0.8.8.jar:474c782f809d88924713dfdbf0acb79d330f904be576484803463d0465611643',
+            'org.jacoco:org.jacoco.report:0.8.8:org.jacoco.report-0.8.8.jar:2c129110f3e3fcaa1f8179578ea3894586199cb0826be5c7790278084c9622a9',
+            'org.jetbrains.kotlin:kotlin-reflect:1.6.10:kotlin-reflect-1.6.10.jar:3277ac102ae17aad10a55abec75ff5696c8d109790396434b496e75087854203',
+            'org.jetbrains.kotlin:kotlin-stdlib-common:1.7.0:kotlin-stdlib-common-1.7.0.jar:59c6ff64fe9a6604afce03e8aaa75f83586c6030ac71fb0b34ee7cdefed3618f',
+            'org.jetbrains.kotlin:kotlin-stdlib-common:1.8.0:kotlin-stdlib-common-1.8.0.jar:78ef93b59e603cc0fe51def9bd4c037b07cbace3b3b7806d1a490a42bc1f4cb2',
+            'org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.7.0:kotlin-stdlib-jdk7-1.7.0.jar:07e91be9b2ca20672d2bdb7e181b766e73453a2da13492b5ddaee8fa47aea239',
+            'org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.8.0:kotlin-stdlib-jdk7-1.8.0.jar:4c889d1d9803f5f2eb6c1592a6b7e62369ac7660c9eee15aba16fec059163666',
+            'org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.7.0:kotlin-stdlib-jdk8-1.7.0.jar:cf058e11db1dfc9944680c8c61b95ac689aaaa8a3eb30bced028100f038f030b',
+            'org.jetbrains.kotlin:kotlin-stdlib:1.7.0:kotlin-stdlib-1.7.0.jar:aa88e9625577957f3249a46cb6e166ee09b369e600f7a11d148d16b0a6d87f05',
+            'org.jetbrains.kotlin:kotlin-stdlib:1.8.0:kotlin-stdlib-1.8.0.jar:c77bef8774640b9fb9d6e217459ff220dae59878beb7d2e4b430506feffc654e',
+            'org.jetbrains.kotlinx:kotlinx-metadata-jvm:0.5.0:kotlinx-metadata-jvm-0.5.0.jar:ca063a96639b08b9eaa0de4d65e899480740a6efbe28ab9a8681a2ced03055a4',
+            'org.jetbrains:annotations:13.0:annotations-13.0.jar:ace2a10dc8e2d5fd34925ecac03e4988b2c0f851650c94b8cef49ba1bd111478',
+            'org.jmock:jmock-imposters:2.12.0:jmock-imposters-2.12.0.jar:3b836269745a137c9b2347e8d7c2104845b126ef04f012d6bfd94f1a7dea7b09',
+            'org.jmock:jmock-junit4:2.12.0:jmock-junit4-2.12.0.jar:3233062fc889637c151a24f1ee086bad04321ab7d8264fef279daff0fa27205b',
+            'org.jmock:jmock-legacy:2.12.0:jmock-legacy-2.12.0.jar:dea3a9cca653d082e2fe7e40232e982fe03a9984c7d67ceff24f3e03fe580dcd',
+            'org.jmock:jmock-testjar:2.12.0:jmock-testjar-2.12.0.jar:efefbcf6cd294d0e29f0c46eb2a3380d4ca4e1763ff719c69e2f2ac62f564a04',
+            'org.jmock:jmock:2.12.0:jmock-2.12.0.jar:266d07314c0cd343c46ff8a55601272de8cf406807caf55e6f313295f83d10be',
+            'org.objenesis:objenesis:3.0.1:objenesis-3.0.1.jar:7a8ff780b9ff48415d7c705f60030b0acaa616e7f823c98eede3b63508d4e984',
+            'org.ow2.asm:asm-analysis:9.2:asm-analysis-9.2.jar:878fbe521731c072d14d2d65b983b1beae6ad06fda0007b6a8bae81f73f433c4',
+            'org.ow2.asm:asm-commons:9.2:asm-commons-9.2.jar:be4ce53138a238bb522cd781cf91f3ba5ce2f6ca93ec62d46a162a127225e0a6',
+            'org.ow2.asm:asm-tree:9.2:asm-tree-9.2.jar:aabf9bd23091a4ebfc109c1f3ee7cf3e4b89f6ba2d3f51c5243f16b3cffae011',
+            'org.ow2.asm:asm:7.1:asm-7.1.jar:4ab2fa2b6d2cc9ccb1eaa05ea329c407b47b13ed2915f62f8c4b8cc96258d4de',
+            'org.ow2.asm:asm:9.2:asm-9.2.jar:b9d4fe4d71938df38839f0eca42aaaa64cf8b313d678da036f0cb3ca199b47f5',
+    ]
 }

bramble-api/build.gradle

@@ -27,7 +27,7 @@ configurations {
 }
 task jarTest(type: Jar, dependsOn: testClasses) {
 	from sourceSets.test.output, sourceSets.main.output
-	archiveClassifier = 'test'
+	classifier = 'test'
 }
 artifacts {
 	testOutput jarTest

bramble-api/src/main/java/org/briarproject/bramble/api/plugin/TorConstants.java

@@ -46,7 +46,6 @@ public interface TorConstants {
 
 	/**
 	 * Reason flag returned by {@link Plugin#getReasonsDisabled()}.
-	 * Currently unused, but may be worth keeping for future use.
 	 */
 	int REASON_COUNTRY_BLOCKED = 8;
 }

bramble-api/witness.gradle

@@ -1,29 +1,29 @@
 dependencyVerification {
 	verify = [
-		'cglib:cglib:3.2.8:cglib-3.2.8.jar:3f64de999ecc5595dc84ca8ff0879d8a34c8623f9ef3c517a53ed59023fcb9db',
-		'com.fasterxml.jackson.core:jackson-annotations:2.13.4:jackson-annotations-2.13.4.jar:ac5b27a634942391ca113850ee7db01df1499a240174021263501c05fc653b44',
-		'com.google.code.findbugs:annotations:3.0.1:annotations-3.0.1.jar:6b47ff0a6de0ce17cbedc3abb0828ca5bce3009d53ea47b3723ff023c4742f79',
-		'com.google.code.findbugs:jsr305:3.0.2:jsr305-3.0.2.jar:766ad2a0783f2687962c8ad74ceecc38a28b9f72a2d085ee438b7813e928d0c7',
-		'com.google.dagger:dagger:2.51.1:dagger-2.51.1.jar:c3891a4c4a4e48682888ca321eaf8497004b286e1d9a2936867373219f7dd86d',
-		'javax.inject:javax.inject:1:javax.inject-1.jar:91c77044a50c481636c32d916fd89c9118a72195390452c81065080f957de7ff',
-		'junit:junit:4.13.2:junit-4.13.2.jar:8e495b634469d64fb8acfa3495a065cbacc8a0fff55ce1e31007be4c16dc57d3',
-		'net.bytebuddy:byte-buddy:1.9.12:byte-buddy-1.9.12.jar:3688c3d434bebc3edc5516296a2ed0f47b65e451071b4afecad84f902f0efc11',
-		'net.jcip:jcip-annotations:1.0:jcip-annotations-1.0.jar:be5805392060c71474bf6c9a67a099471274d30b83eef84bfc4e0889a4f1dcc0',
-		'org.apache-extras.beanshell:bsh:2.0b6:bsh-2.0b6.jar:a17955976070c0573235ee662f2794a78082758b61accffce8d3f8aedcd91047',
-		'org.briarproject:null-safety:0.1:null-safety-0.1.jar:161760de5e838cb982bafa973df820675d4397098e9a91637a36a306d43ba011',
-		'org.codehaus.mojo.signature:java16:1.1:java16-1.1.signature:53799223a2c98dba2d0add810bed76315460df285c69e4f397ae6098f87dd619',
-		'org.codehaus.mojo:animal-sniffer-annotations:1.24:animal-sniffer-annotations-1.24.jar:c720e6e5bcbe6b2f48ded75a47bccdb763eede79d14330102e0d352e3d89ed92',
-		'org.codehaus.mojo:animal-sniffer:1.24:animal-sniffer-1.24.jar:65d028de87134f0955e3a964fe438fc3e99e77b237a77e5e165869a8ff59db5f',
-		'org.hamcrest:hamcrest-core:2.1:hamcrest-core-2.1.jar:e09109e54a289d88506b9bfec987ddd199f4217c9464132668351b9a4f00bee9',
-		'org.hamcrest:hamcrest-library:2.1:hamcrest-library-2.1.jar:b7e2b6895b3b679f0e47b6380fda391b225e9b78505db9d8bdde8d3cc8d52a21',
-		'org.hamcrest:hamcrest:2.1:hamcrest-2.1.jar:ba93b2e3a562322ba432f0a1b53addcc55cb188253319a020ed77f824e692050',
-		'org.jmock:jmock-imposters:2.12.0:jmock-imposters-2.12.0.jar:3b836269745a137c9b2347e8d7c2104845b126ef04f012d6bfd94f1a7dea7b09',
-		'org.jmock:jmock-junit4:2.12.0:jmock-junit4-2.12.0.jar:3233062fc889637c151a24f1ee086bad04321ab7d8264fef279daff0fa27205b',
-		'org.jmock:jmock-legacy:2.12.0:jmock-legacy-2.12.0.jar:dea3a9cca653d082e2fe7e40232e982fe03a9984c7d67ceff24f3e03fe580dcd',
-		'org.jmock:jmock-testjar:2.12.0:jmock-testjar-2.12.0.jar:efefbcf6cd294d0e29f0c46eb2a3380d4ca4e1763ff719c69e2f2ac62f564a04',
-		'org.jmock:jmock:2.12.0:jmock-2.12.0.jar:266d07314c0cd343c46ff8a55601272de8cf406807caf55e6f313295f83d10be',
-		'org.objenesis:objenesis:3.0.1:objenesis-3.0.1.jar:7a8ff780b9ff48415d7c705f60030b0acaa616e7f823c98eede3b63508d4e984',
-		'org.ow2.asm:asm:7.1:asm-7.1.jar:4ab2fa2b6d2cc9ccb1eaa05ea329c407b47b13ed2915f62f8c4b8cc96258d4de',
-		'org.ow2.asm:asm:9.7:asm-9.7.jar:adf46d5e34940bdf148ecdd26a9ee8eea94496a72034ff7141066b3eea5c4e9d',
+			'cglib:cglib:3.2.8:cglib-3.2.8.jar:3f64de999ecc5595dc84ca8ff0879d8a34c8623f9ef3c517a53ed59023fcb9db',
+			'com.fasterxml.jackson.core:jackson-annotations:2.13.4:jackson-annotations-2.13.4.jar:ac5b27a634942391ca113850ee7db01df1499a240174021263501c05fc653b44',
+			'com.google.code.findbugs:annotations:3.0.1:annotations-3.0.1.jar:6b47ff0a6de0ce17cbedc3abb0828ca5bce3009d53ea47b3723ff023c4742f79',
+			'com.google.code.findbugs:jsr305:3.0.2:jsr305-3.0.2.jar:766ad2a0783f2687962c8ad74ceecc38a28b9f72a2d085ee438b7813e928d0c7',
+			'com.google.dagger:dagger:2.45:dagger-2.45.jar:f011cae7d2c0fb7ea17c34e05bc10e768b1081a5892ad019cf1fdb0e125c49c1',
+			'javax.inject:javax.inject:1:javax.inject-1.jar:91c77044a50c481636c32d916fd89c9118a72195390452c81065080f957de7ff',
+			'junit:junit:4.13.2:junit-4.13.2.jar:8e495b634469d64fb8acfa3495a065cbacc8a0fff55ce1e31007be4c16dc57d3',
+			'net.bytebuddy:byte-buddy:1.9.12:byte-buddy-1.9.12.jar:3688c3d434bebc3edc5516296a2ed0f47b65e451071b4afecad84f902f0efc11',
+			'net.jcip:jcip-annotations:1.0:jcip-annotations-1.0.jar:be5805392060c71474bf6c9a67a099471274d30b83eef84bfc4e0889a4f1dcc0',
+			'org.apache-extras.beanshell:bsh:2.0b6:bsh-2.0b6.jar:a17955976070c0573235ee662f2794a78082758b61accffce8d3f8aedcd91047',
+			'org.briarproject:null-safety:0.1:null-safety-0.1.jar:161760de5e838cb982bafa973df820675d4397098e9a91637a36a306d43ba011',
+			'org.codehaus.mojo.signature:java16:1.1:java16-1.1.signature:53799223a2c98dba2d0add810bed76315460df285c69e4f397ae6098f87dd619',
+			'org.codehaus.mojo:animal-sniffer-ant-tasks:1.22:animal-sniffer-ant-tasks-1.22.jar:3f6afeb3e09301d2d7179ed1db21e3ad8846c1e38415ad832a395138ae3f4218',
+			'org.codehaus.mojo:animal-sniffer:1.22:animal-sniffer-1.22.jar:f18c11a25bdd8b520b9c6a28cbb6f33007c812ab0051b6be3f0778e660aa501c',
+			'org.hamcrest:hamcrest-core:2.1:hamcrest-core-2.1.jar:e09109e54a289d88506b9bfec987ddd199f4217c9464132668351b9a4f00bee9',
+			'org.hamcrest:hamcrest-library:2.1:hamcrest-library-2.1.jar:b7e2b6895b3b679f0e47b6380fda391b225e9b78505db9d8bdde8d3cc8d52a21',
+			'org.hamcrest:hamcrest:2.1:hamcrest-2.1.jar:ba93b2e3a562322ba432f0a1b53addcc55cb188253319a020ed77f824e692050',
+			'org.jmock:jmock-imposters:2.12.0:jmock-imposters-2.12.0.jar:3b836269745a137c9b2347e8d7c2104845b126ef04f012d6bfd94f1a7dea7b09',
+			'org.jmock:jmock-junit4:2.12.0:jmock-junit4-2.12.0.jar:3233062fc889637c151a24f1ee086bad04321ab7d8264fef279daff0fa27205b',
+			'org.jmock:jmock-legacy:2.12.0:jmock-legacy-2.12.0.jar:dea3a9cca653d082e2fe7e40232e982fe03a9984c7d67ceff24f3e03fe580dcd',
+			'org.jmock:jmock-testjar:2.12.0:jmock-testjar-2.12.0.jar:efefbcf6cd294d0e29f0c46eb2a3380d4ca4e1763ff719c69e2f2ac62f564a04',
+			'org.jmock:jmock:2.12.0:jmock-2.12.0.jar:266d07314c0cd343c46ff8a55601272de8cf406807caf55e6f313295f83d10be',
+			'org.objenesis:objenesis:3.0.1:objenesis-3.0.1.jar:7a8ff780b9ff48415d7c705f60030b0acaa616e7f823c98eede3b63508d4e984',
+			'org.ow2.asm:asm:7.1:asm-7.1.jar:4ab2fa2b6d2cc9ccb1eaa05ea329c407b47b13ed2915f62f8c4b8cc96258d4de',
+			'org.ow2.asm:asm:9.3:asm-9.3.jar:1263369b59e29c943918de11d6d6152e2ec6085ce63e5710516f8c67d368e4bc',
 	]
 }

bramble-core/build.gradle

@@ -16,6 +16,7 @@ dependencies {
 	implementation "org.bouncycastle:bcprov-jdk15to18:$bouncy_castle_version"
 	//noinspection GradleDependency
 	implementation 'com.h2database:h2:1.4.192' // The last version that supports Java 1.6
+	implementation "io.github.willena:sqlite-jdbc:$sqlite_jdbc_crypt_version"
 	implementation 'org.bitlet:weupnp:0.1.4'
 	implementation 'net.i2p.crypto:eddsa:0.2.0'
 	implementation 'org.whispersystems:curve25519-java:0.5.0'
@@ -54,7 +55,7 @@ configurations {
 }
 task jarTest(type: Jar, dependsOn: testClasses) {
 	from sourceSets.test.output, sourceSets.main.output
-	archiveClassifier = 'test'
+	classifier = 'test'
 }
 artifacts {
 	testOutput jarTest

bramble-core/src/main/java/org/briarproject/bramble/crypto/CryptoComponentImpl.java

@@ -107,8 +107,6 @@ class CryptoComponentImpl implements CryptoComponent {
 	}
 
 	// Based on https://android-developers.googleblog.com/2013/08/some-securerandom-thoughts.html
-	// "Applications which run exclusively on Android KitKat (4.4) or above do
-	// not need to take any special action to work around this bug."
 	private void installSecureRandomProvider(Provider provider) {
 		Provider[] providers = Security.getProviders("SecureRandom.SHA1PRNG");
 		if (providers == null || providers.length == 0

bramble-core/src/main/java/org/briarproject/bramble/db/Database.java

@@ -413,6 +413,9 @@ interface Database<T> {
 	 */
 	Collection<MessageId> getMessageIds(T txn, GroupId g) throws DbException;
 
+	Collection<String> explainGetMessageIds(T txn, GroupId g)
+			throws DbException;
+
 	/**
 	 * Returns the IDs of any delivered messages in the given group with
 	 * metadata that matches all entries in the given query. If the query is

bramble-core/src/main/java/org/briarproject/bramble/db/DatabaseModule.java

@@ -24,7 +24,7 @@ public class DatabaseModule {
 	@Singleton
 	Database<Connection> provideDatabase(DatabaseConfig config,
 			MessageFactory messageFactory, Clock clock) {
-		return new H2Database(config, messageFactory, clock);
+		return new SqliteDatabase(config, messageFactory, clock);
 	}
 
 	@Provides

bramble-core/src/main/java/org/briarproject/bramble/db/DatabaseTypes.java

@@ -4,14 +4,16 @@ class DatabaseTypes {
 
 	private final String hashType, secretType, binaryType;
 	private final String counterType, stringType;
+	private final String explainCommand; // FIXME: Remove
 
 	public DatabaseTypes(String hashType, String secretType, String binaryType,
-			String counterType, String stringType) {
+			String counterType, String stringType, String explainCommand) {
 		this.hashType = hashType;
 		this.secretType = secretType;
 		this.binaryType = binaryType;
 		this.counterType = counterType;
 		this.stringType = stringType;
+		this.explainCommand = explainCommand;
 	}
 
 	/**
@@ -22,6 +24,7 @@ class DatabaseTypes {
 	 * <li> _BINARY
 	 * <li> _COUNTER
 	 * <li> _STRING
+	 * <li> _EXPLAIN
 	 */
 	String replaceTypes(String s) {
 		s = s.replaceAll("_HASH", hashType);
@@ -29,6 +32,7 @@ class DatabaseTypes {
 		s = s.replaceAll("_BINARY", binaryType);
 		s = s.replaceAll("_COUNTER", counterType);
 		s = s.replaceAll("_STRING", stringType);
+		s = s.replaceAll("_EXPLAIN", explainCommand);
 		return s;
 	}
 }

bramble-core/src/main/java/org/briarproject/bramble/db/H2Database.java

@@ -39,10 +39,13 @@ class H2Database extends JdbcDatabase {
 	private static final String HASH_TYPE = "BINARY(32)";
 	private static final String SECRET_TYPE = "BINARY(32)";
 	private static final String BINARY_TYPE = "BINARY";
-	private static final String COUNTER_TYPE = "INT NOT NULL AUTO_INCREMENT";
+	private static final String COUNTER_TYPE =
+			"INT NOT NULL AUTO_INCREMENT PRIMARY KEY";
 	private static final String STRING_TYPE = "VARCHAR";
+	private static final String EXPLAIN_COMMAND = "EXPLAIN";
 	private static final DatabaseTypes dbTypes = new DatabaseTypes(HASH_TYPE,
-			SECRET_TYPE, BINARY_TYPE, COUNTER_TYPE, STRING_TYPE);
+			SECRET_TYPE, BINARY_TYPE, COUNTER_TYPE, STRING_TYPE,
+			EXPLAIN_COMMAND);
 
 	private final DatabaseConfig config;
 	private final String url;
@@ -73,7 +76,7 @@ class H2Database extends JdbcDatabase {
 		boolean reopen = isNonEmptyDirectory(dir);
 		if (LOG.isLoggable(INFO)) LOG.info("Reopening DB: " + reopen);
 		if (!reopen && dir.mkdirs()) LOG.info("Created database directory");
-		super.open("org.h2.Driver", reopen, key, listener);
+		super.open("org.h2.Driver", reopen, false, key, listener);
 		if (LOG.isLoggable(INFO)) {
 			LOG.info("Contents of account directory after opening DB:");
 			logFileOrDir(LOG, INFO, dir.getParentFile());
@@ -89,17 +92,11 @@ class H2Database extends JdbcDatabase {
 		try {
 			c = createConnection();
 			closeAllConnections();
-			LOG.info("Compacting DB");
+			setDirty(c, false);
 			s = c.createStatement();
 			s.execute("SHUTDOWN COMPACT");
-			LOG.info("Finished compacting DB");
 			s.close();
 			c.close();
-			// Reopen the DB to mark it as clean after compacting
-			c = createConnection();
-			setDirty(c, false);
-			LOG.info("Marked DB as clean");
-			c.close();
 		} catch (SQLException e) {
 			tryToClose(s, LOG, WARNING);
 			tryToClose(c, LOG, WARNING);
@@ -132,7 +129,6 @@ class H2Database extends JdbcDatabase {
 			closeAllConnections();
 			s = c.createStatement();
 			s.execute("SHUTDOWN COMPACT");
-			LOG.info("Finished compacting DB");
 			s.close();
 			c.close();
 		} catch (SQLException e) {

bramble-core/src/main/java/org/briarproject/bramble/db/HyperSqlDatabase.java

@@ -38,11 +38,13 @@ class HyperSqlDatabase extends JdbcDatabase {
 	private static final String HASH_TYPE = "BINARY(32)";
 	private static final String SECRET_TYPE = "BINARY(32)";
 	private static final String BINARY_TYPE = "BINARY";
-	private static final String COUNTER_TYPE =
-			"INTEGER NOT NULL GENERATED ALWAYS AS IDENTITY(START WITH 1)";
+	private static final String COUNTER_TYPE = "INTEGER NOT NULL"
+			+ " PRIMARY KEY GENERATED ALWAYS AS IDENTITY(START WITH 1)";
 	private static final String STRING_TYPE = "VARCHAR";
+	private static final String EXPLAIN_COMMAND = "EXPLAIN PLAN FOR";
 	private static final DatabaseTypes dbTypes = new DatabaseTypes(HASH_TYPE,
-			SECRET_TYPE, BINARY_TYPE, COUNTER_TYPE, STRING_TYPE);
+			SECRET_TYPE, BINARY_TYPE, COUNTER_TYPE, STRING_TYPE,
+			EXPLAIN_COMMAND);
 
 	private final DatabaseConfig config;
 	private final String url;
@@ -70,7 +72,7 @@ class HyperSqlDatabase extends JdbcDatabase {
 		boolean reopen = isNonEmptyDirectory(dir);
 		if (LOG.isLoggable(INFO)) LOG.info("Reopening DB: " + reopen);
 		if (!reopen && dir.mkdirs()) LOG.info("Created database directory");
-		super.open("org.hsqldb.jdbc.JDBCDriver", reopen, key, listener);
+		super.open("org.hsqldb.jdbc.JDBCDriver", reopen, true, key, listener);
 		return reopen;
 	}
 

bramble-core/src/main/java/org/briarproject/bramble/db/JdbcDatabase.java

@@ -143,8 +143,7 @@ abstract class JdbcDatabase implements Database<Connection> {
 					+ " handshakePublicKey _BINARY," // Null if key is unknown
 					+ " localAuthorId _HASH NOT NULL,"
 					+ " verified BOOLEAN NOT NULL,"
-					+ " syncVersions _BINARY DEFAULT '00' NOT NULL,"
-					+ " PRIMARY KEY (contactId),"
+					+ " syncVersions _BINARY DEFAULT x'00' NOT NULL,"
 					+ " FOREIGN KEY (localAuthorId)"
 					+ " REFERENCES localAuthors (authorId)"
 					+ " ON DELETE CASCADE)";
@@ -295,11 +294,11 @@ abstract class JdbcDatabase implements Database<Connection> {
 					+ " active BOOLEAN NOT NULL,"
 					+ " rootKey _SECRET," // Null for rotation keys
 					+ " alice BOOLEAN," // Null for rotation keys
-					+ " PRIMARY KEY (transportId, keySetId),"
+					// FIXME: Primary key has changed, migration needed
 					+ " FOREIGN KEY (transportId)"
 					+ " REFERENCES transports (transportId)"
 					+ " ON DELETE CASCADE,"
-					+ " UNIQUE (keySetId),"
+					// FIXME: Unique constraint removed, migration needed
 					+ " FOREIGN KEY (contactId)"
 					+ " REFERENCES contacts (contactId)"
 					+ " ON DELETE CASCADE,"
@@ -358,6 +357,85 @@ abstract class JdbcDatabase implements Database<Connection> {
 			"CREATE INDEX IF NOT EXISTS messagesByCleanupDeadline"
 					+ " ON messages (cleanupDeadline)";
 
+	// FIXME: Migration needs to add new index
+	private static final String INDEX_OUTGOING_KEYS_BY_TRANSPORT_ID_KEY_SET_ID =
+			"CREATE INDEX IF NOT EXISTS outgoingKeysByTransportIdKeySetId"
+					+ " ON outgoingKeys (transportId, keySetId)";
+
+	private static final String FOREIGN_INDEX_CONTACTS_BY_LOCAL_AUTHOR_ID =
+			"CREATE INDEX IF NOT EXISTS contactsByLocalAuthorId"
+					+ " ON contacts (localAuthorId)";
+
+	private static final String FOREIGN_INDEX_GROUP_METADATA_BY_GROUP_ID =
+			"CREATE INDEX IF NOT EXISTS groupMetadataByGroupId"
+					+ " ON groupMetadata (groupId)";
+
+	private static final String FOREIGN_INDEX_GROUP_VISIBILITIES_BY_CONTACT_ID =
+			"CREATE INDEX IF NOT EXISTS groupVisibilitiesByContactId"
+					+ " ON groupVisibilities (contactId)";
+
+	private static final String FOREIGN_INDEX_GROUP_VISIBILITIES_BY_GROUP_ID =
+			"CREATE INDEX IF NOT EXISTS groupVisibilitiesByGroupId"
+					+ " ON groupVisibilities (groupId)";
+
+	private static final String FOREIGN_INDEX_MESSAGES_BY_GROUP_ID =
+			"CREATE INDEX IF NOT EXISTS messagesByGroupId"
+					+ " ON messages (groupId)";
+
+	private static final String FOREIGN_INDEX_MESSAGE_METADATA_BY_MESSAGE_ID =
+			"CREATE INDEX IF NOT EXISTS messageMetadataByMessageId"
+					+ " ON messageMetadata (messageId)";
+
+	private static final String FOREIGN_INDEX_MESSAGE_METADATA_BY_GROUP_ID =
+			"CREATE INDEX IF NOT EXISTS messageMetadataByGroupId"
+					+ " ON messageMetadata (groupId)";
+
+	private static final String FOREIGN_INDEX_MESSAGE_DEPENDENCIES_BY_GROUP_ID =
+			"CREATE INDEX IF NOT EXISTS messageDependenciesByGroupId"
+					+ " ON messageDependencies (groupId)";
+
+	private static final String
+			FOREIGN_INDEX_MESSAGE_DEPENDENCIES_BY_MESSAGE_ID =
+			"CREATE INDEX IF NOT EXISTS messageDependenciesByMessageId"
+					+ " ON messageDependencies (messageId)";
+
+	private static final String FOREIGN_INDEX_OFFERS_BY_CONTACT_ID =
+			"CREATE INDEX IF NOT EXISTS offersByContactId"
+					+ " ON offers (contactId)";
+
+	private static final String FOREIGN_INDEX_STATUSES_BY_MESSAGE_ID =
+			"CREATE INDEX IF NOT EXISTS statusesByMessageId"
+					+ " ON statuses (messageId)";
+
+	private static final String FOREIGN_INDEX_STATUSES_BY_CONTACT_ID =
+			"CREATE INDEX IF NOT EXISTS statusesByContactId"
+					+ " ON statuses (contactId)";
+
+	private static final String FOREIGN_INDEX_STATUSES_BY_GROUP_ID =
+			"CREATE INDEX IF NOT EXISTS statusesByGroupId"
+					+ " ON statuses (groupId)";
+
+	private static final String FOREIGN_INDEX_OUTGOING_KEYS_BY_TRANSPORT_ID =
+			"CREATE INDEX IF NOT EXISTS outgoingKeysByTransportId"
+					+ " ON outgoingKeys (transportId)";
+
+	private static final String FOREIGN_INDEX_OUTGOING_KEYS_BY_CONTACT_ID =
+			"CREATE INDEX IF NOT EXISTS outgoingKeysByContactId"
+					+ " ON outgoingKeys (contactId)";
+
+	private static final String
+			FOREIGN_INDEX_OUTGOING_KEYS_BY_PENDING_CONTACT_ID =
+			"CREATE INDEX IF NOT EXISTS outgoingKeysByPendingContactId"
+					+ " ON outgoingKeys (pendingContactId)";
+
+	private static final String FOREIGN_INDEX_INCOMING_KEYS_BY_TRANSPORT_ID =
+			"CREATE INDEX IF NOT EXISTS incomingKeysByTransportId"
+					+ " ON incomingKeys (transportId)";
+
+	private static final String FOREIGN_INDEX_INCOMING_KEYS_BY_KEY_SET_ID =
+			"CREATE INDEX IF NOT EXISTS incomingKeysByKeySetId"
+					+ " ON incomingKeys (keySetId)";
+
 	private static final Logger LOG =
 			getLogger(JdbcDatabase.class.getName());
 
@@ -393,6 +471,7 @@ abstract class JdbcDatabase implements Database<Connection> {
 	}
 
 	protected void open(String driverClass, boolean reopen,
+			boolean createForeignKeyIndexes,
 			@SuppressWarnings("unused") SecretKey key,
 			@Nullable MigrationListener listener) throws DbException {
 		// Load the JDBC driver
@@ -419,7 +498,7 @@ abstract class JdbcDatabase implements Database<Connection> {
 			if (LOG.isLoggable(INFO)) {
 				LOG.info("db dirty? " + wasDirtyOnInitialisation);
 			}
-			createIndexes(txn);
+			createIndexes(txn, createForeignKeyIndexes);
 			setDirty(txn, true);
 			commitTransaction(txn);
 		} catch (DbException e) {
@@ -552,7 +631,8 @@ abstract class JdbcDatabase implements Database<Connection> {
 		}
 	}
 
-	private void createIndexes(Connection txn) throws DbException {
+	private void createIndexes(Connection txn, boolean createForeignKeyIndexes)
+			throws DbException {
 		Statement s = null;
 		try {
 			s = txn.createStatement();
@@ -564,6 +644,31 @@ abstract class JdbcDatabase implements Database<Connection> {
 			s.executeUpdate(INDEX_STATUSES_BY_CONTACT_ID_TIMESTAMP);
 			s.executeUpdate(INDEX_STATUSES_BY_CONTACT_ID_TX_COUNT_TIMESTAMP);
 			s.executeUpdate(INDEX_MESSAGES_BY_CLEANUP_DEADLINE);
+			s.executeUpdate(INDEX_OUTGOING_KEYS_BY_TRANSPORT_ID_KEY_SET_ID);
+			// Some DB implementations automatically create indexes on columns
+			// that are foreign keys, others don't
+			if (createForeignKeyIndexes) {
+				s.executeUpdate(FOREIGN_INDEX_CONTACTS_BY_LOCAL_AUTHOR_ID);
+				s.executeUpdate(FOREIGN_INDEX_GROUP_METADATA_BY_GROUP_ID);
+				s.executeUpdate(FOREIGN_INDEX_GROUP_VISIBILITIES_BY_CONTACT_ID);
+				s.executeUpdate(FOREIGN_INDEX_GROUP_VISIBILITIES_BY_GROUP_ID);
+				s.executeUpdate(FOREIGN_INDEX_MESSAGES_BY_GROUP_ID);
+				s.executeUpdate(FOREIGN_INDEX_MESSAGE_METADATA_BY_MESSAGE_ID);
+				s.executeUpdate(FOREIGN_INDEX_MESSAGE_METADATA_BY_GROUP_ID);
+				s.executeUpdate(FOREIGN_INDEX_MESSAGE_DEPENDENCIES_BY_GROUP_ID);
+				s.executeUpdate(
+						FOREIGN_INDEX_MESSAGE_DEPENDENCIES_BY_MESSAGE_ID);
+				s.executeUpdate(FOREIGN_INDEX_OFFERS_BY_CONTACT_ID);
+				s.executeUpdate(FOREIGN_INDEX_STATUSES_BY_MESSAGE_ID);
+				s.executeUpdate(FOREIGN_INDEX_STATUSES_BY_CONTACT_ID);
+				s.executeUpdate(FOREIGN_INDEX_STATUSES_BY_GROUP_ID);
+				s.executeUpdate(FOREIGN_INDEX_OUTGOING_KEYS_BY_TRANSPORT_ID);
+				s.executeUpdate(FOREIGN_INDEX_OUTGOING_KEYS_BY_CONTACT_ID);
+				s.executeUpdate(
+						FOREIGN_INDEX_OUTGOING_KEYS_BY_PENDING_CONTACT_ID);
+				s.executeUpdate(FOREIGN_INDEX_INCOMING_KEYS_BY_TRANSPORT_ID);
+				s.executeUpdate(FOREIGN_INDEX_INCOMING_KEYS_BY_KEY_SET_ID);
+			}
 			s.close();
 		} catch (SQLException e) {
 			tryToClose(s, LOG, WARNING);
@@ -1914,6 +2019,38 @@ abstract class JdbcDatabase implements Database<Connection> {
 		}
 	}
 
+	@Override
+	public Collection<String> explainGetMessageIds(Connection txn, GroupId g)
+			throws DbException {
+		PreparedStatement ps = null;
+		ResultSet rs = null;
+		try {
+			String sql = dbTypes.replaceTypes("_EXPLAIN SELECT messageId"
+					+ " FROM messages"
+					+ " WHERE groupId = ? AND state = ?");
+			ps = txn.prepareStatement(sql);
+			ps.setBytes(1, g.getBytes());
+			ps.setInt(2, DELIVERED.getValue());
+			rs = ps.executeQuery();
+			int cols = rs.getMetaData().getColumnCount();
+			List<String> explanation = new ArrayList<>();
+			while (rs.next()) {
+				StringBuilder sb = new StringBuilder();
+				for (int i = 1; i <= cols; i++) {
+					sb.append(rs.getString(i)).append(' ');
+				}
+				explanation.add(sb.toString());
+			}
+			rs.close();
+			ps.close();
+			return explanation;
+		} catch (SQLException e) {
+			tryToClose(rs, LOG, WARNING);
+			tryToClose(ps, LOG, WARNING);
+			throw new DbException(e);
+		}
+	}
+
 	@Override
 	public Collection<MessageId> getMessageIds(Connection txn, GroupId g,
 			Metadata query) throws DbException {
@@ -2597,6 +2734,9 @@ abstract class JdbcDatabase implements Database<Connection> {
 			PublicKey publicKey = new AgreementPublicKey(rs.getBytes(1));
 			String alias = rs.getString(2);
 			long timestamp = rs.getLong(3);
+			if (rs.next()) throw new DbStateException();
+			rs.close();
+			ps.close();
 			return new PendingContact(p, publicKey, alias, timestamp);
 		} catch (SQLException e) {
 			tryToClose(rs, LOG, WARNING);

bramble-core/src/main/java/org/briarproject/bramble/db/SqliteDatabase.java

@@ -0,0 +1,117 @@
+package org.briarproject.bramble.db;
+
+import org.briarproject.bramble.api.crypto.SecretKey;
+import org.briarproject.bramble.api.db.DatabaseConfig;
+import org.briarproject.bramble.api.db.DbClosedException;
+import org.briarproject.bramble.api.db.DbException;
+import org.briarproject.bramble.api.db.MigrationListener;
+import org.briarproject.bramble.api.sync.MessageFactory;
+import org.briarproject.bramble.api.system.Clock;
+import org.briarproject.nullsafety.NotNullByDefault;
+import org.sqlite.mc.SQLiteMCSqlCipherConfig;
+
+import java.io.File;
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.SQLException;
+import java.sql.Statement;
+import java.util.Properties;
+import java.util.logging.Logger;
+
+import javax.annotation.Nullable;
+import javax.inject.Inject;
+
+import static java.util.logging.Level.INFO;
+import static java.util.logging.Level.WARNING;
+import static java.util.logging.Logger.getLogger;
+import static org.briarproject.bramble.db.JdbcUtils.tryToClose;
+import static org.briarproject.bramble.util.IoUtils.isNonEmptyDirectory;
+
+/**
+ * Contains all the SQLite-specific code for the database.
+ */
+@NotNullByDefault
+class SqliteDatabase extends JdbcDatabase {
+
+	private static final Logger LOG = getLogger(SqliteDatabase.class.getName());
+
+	private static final String HASH_TYPE = "BLOB";
+	private static final String SECRET_TYPE = "BLOB";
+	private static final String BINARY_TYPE = "BLOB";
+	private static final String COUNTER_TYPE =
+			"INTEGER PRIMARY KEY AUTOINCREMENT";
+	private static final String STRING_TYPE = "VARCHAR";
+	private static final String EXPLAIN_COMMAND = "EXPLAIN QUERY PLAN";
+	private static final DatabaseTypes dbTypes = new DatabaseTypes(HASH_TYPE,
+			SECRET_TYPE, BINARY_TYPE, COUNTER_TYPE, STRING_TYPE,
+			EXPLAIN_COMMAND);
+
+	private final DatabaseConfig config;
+	private final String url;
+
+	@Nullable
+	private volatile Properties properties = null;
+
+	@Inject
+	SqliteDatabase(DatabaseConfig config, MessageFactory messageFactory,
+			Clock clock) {
+		super(dbTypes, messageFactory, clock);
+		this.config = config;
+		File dir = config.getDatabaseDirectory();
+		String path = new File(dir, "db").getAbsolutePath();
+		url = "jdbc:sqlite:" + path + "?cipher=sqlcipher";
+	}
+
+	@Override
+	public boolean open(SecretKey key, @Nullable MigrationListener listener)
+			throws DbException {
+		properties = SQLiteMCSqlCipherConfig.getDefault()
+				.withHexKey(key.getBytes())
+				.build()
+				.toProperties();
+		File dir = config.getDatabaseDirectory();
+		boolean reopen = isNonEmptyDirectory(dir);
+		if (LOG.isLoggable(INFO)) LOG.info("Reopening DB: " + reopen);
+		if (!reopen && dir.mkdirs()) LOG.info("Created database directory");
+		super.open("org.sqlite.JDBC", reopen, true, key, listener);
+		return reopen;
+	}
+
+	@Override
+	public void close() throws DbException {
+		Connection c = null;
+		try {
+			c = createConnection();
+			setDirty(c, false);
+			c.close();
+			closeAllConnections();
+		} catch (SQLException e) {
+			tryToClose(c, LOG, WARNING);
+			throw new DbException(e);
+		}
+	}
+
+	@Override
+	protected Connection createConnection() throws DbException, SQLException {
+		Properties properties = this.properties;
+		if (properties == null) throw new DbClosedException();
+		Connection c = DriverManager.getConnection(url, properties);
+		Statement s = null;
+		try {
+			s = c.createStatement();
+			s.execute("PRAGMA foreign_keys = ON");
+			s.execute("PRAGMA secure_delete = ON");
+			s.close();
+		} catch (SQLException e) {
+			tryToClose(s, LOG, WARNING);
+			tryToClose(c, LOG, WARNING);
+			throw new DbException(e);
+		}
+		return c;
+	}
+
+	@Override
+	protected void compactAndClose() throws DbException {
+		close();
+	}
+}

bramble-core/src/main/java/org/briarproject/bramble/plugin/bluetooth/AbstractBluetoothPlugin.java

@@ -388,6 +388,7 @@ abstract class AbstractBluetoothPlugin<S, SS> implements BluetoothPlugin,
 		}
 		// Validate the UUID
 		try {
+			//noinspection ResultOfMethodCallIgnored
 			UUID.fromString(uuid);
 		} catch (IllegalArgumentException e) {
 			if (LOG.isLoggable(WARNING)) LOG.warning("Invalid UUID " + uuid);

bramble-core/src/main/java/org/briarproject/bramble/plugin/tor/TorPlugin.java

@@ -75,6 +75,7 @@ import static org.briarproject.bramble.api.plugin.TorConstants.PREF_TOR_ONLY_WHE
 import static org.briarproject.bramble.api.plugin.TorConstants.PREF_TOR_PORT;
 import static org.briarproject.bramble.api.plugin.TorConstants.PROP_ONION_V3;
 import static org.briarproject.bramble.api.plugin.TorConstants.REASON_BATTERY;
+import static org.briarproject.bramble.api.plugin.TorConstants.REASON_COUNTRY_BLOCKED;
 import static org.briarproject.bramble.api.plugin.TorConstants.REASON_MOBILE_DATA;
 import static org.briarproject.bramble.plugin.tor.TorRendezvousCrypto.SEED_BYTES;
 import static org.briarproject.bramble.util.IoUtils.tryToClose;
@@ -105,6 +106,7 @@ class TorPlugin implements DuplexPlugin, EventListener {
 	private final PluginCallback callback;
 	private final long maxLatency;
 	private final int maxIdleTime;
+	private final boolean canVerifyLetsEncryptCerts;
 	private final int socketTimeout;
 	private final AtomicBoolean used = new AtomicBoolean(false);
 
@@ -124,7 +126,8 @@ class TorPlugin implements DuplexPlugin, EventListener {
 			TorWrapper tor,
 			PluginCallback callback,
 			long maxLatency,
-			int maxIdleTime) {
+			int maxIdleTime,
+			boolean canVerifyLetsEncryptCerts) {
 		this.ioExecutor = ioExecutor;
 		this.wakefulIoExecutor = wakefulIoExecutor;
 		this.networkManager = networkManager;
@@ -138,6 +141,7 @@ class TorPlugin implements DuplexPlugin, EventListener {
 		this.callback = callback;
 		this.maxLatency = maxLatency;
 		this.maxIdleTime = maxIdleTime;
+		this.canVerifyLetsEncryptCerts = canVerifyLetsEncryptCerts;
 		if (maxIdleTime > Integer.MAX_VALUE / 2) {
 			socketTimeout = Integer.MAX_VALUE;
 		} else {
@@ -293,7 +297,7 @@ class TorPlugin implements DuplexPlugin, EventListener {
 			List<String> bridges = new ArrayList<>();
 			for (BridgeType bridgeType : bridgeTypes) {
 				bridges.addAll(circumventionProvider.getBridges(bridgeType,
-						countryCode));
+						countryCode, canVerifyLetsEncryptCerts));
 			}
 			tor.enableBridges(bridges);
 		}
@@ -487,8 +491,8 @@ class TorPlugin implements DuplexPlugin, EventListener {
 			boolean wifi = status.isWifi();
 			boolean ipv6Only = status.isIpv6Only();
 			String country = locationUtils.getCurrentCountry();
-			boolean bridgesByDefault =
-					circumventionProvider.shouldUseBridges(country);
+			boolean blocked =
+					circumventionProvider.isTorProbablyBlocked(country);
 			boolean enabledByUser = settings.getBoolean(PREF_PLUGIN_ENABLE,
 					DEFAULT_PREF_PLUGIN_ENABLE);
 			int network = settings.getInt(PREF_TOR_NETWORK,
@@ -498,6 +502,7 @@ class TorPlugin implements DuplexPlugin, EventListener {
 			boolean onlyWhenCharging =
 					settings.getBoolean(PREF_TOR_ONLY_WHEN_CHARGING,
 							DEFAULT_PREF_TOR_ONLY_WHEN_CHARGING);
+			boolean bridgesWork = circumventionProvider.doBridgesWork(country);
 			boolean automatic = network == PREF_TOR_NETWORK_AUTOMATIC;
 
 			if (LOG.isLoggable(INFO)) {
@@ -527,6 +532,10 @@ class TorPlugin implements DuplexPlugin, EventListener {
 					LOG.info("Configured not to use mobile data");
 					reasonsDisabled |= REASON_MOBILE_DATA;
 				}
+				if (automatic && blocked && !bridgesWork) {
+					LOG.info("Country is blocked");
+					reasonsDisabled |= REASON_COUNTRY_BLOCKED;
+				}
 
 				if (reasonsDisabled != 0) {
 					LOG.info("Disabling network due to settings");
@@ -534,7 +543,7 @@ class TorPlugin implements DuplexPlugin, EventListener {
 					LOG.info("Enabling network");
 					enableNetwork = true;
 					if (network == PREF_TOR_NETWORK_WITH_BRIDGES ||
-							(automatic && bridgesByDefault)) {
+							(automatic && bridgesWork)) {
 						if (ipv6Only) {
 							bridgeTypes = asList(MEEK, SNOWFLAKE);
 						} else {

bramble-core/src/test/java/org/briarproject/bramble/crypto/NeitherSecureNorRandom.java

@@ -1,45 +0,0 @@
-package org.briarproject.bramble.crypto;
-
-import java.security.Provider;
-import java.security.SecureRandom;
-import java.security.SecureRandomSpi;
-
-import static java.util.Arrays.fill;
-
-/**
- * A fake SecureRandom implementation for testing, which returns all zeroes.
- */
-public class NeitherSecureNorRandom extends SecureRandom {
-
-	private static final Provider PROVIDER =
-			new NeitherSecureNorRandomProvider();
-
-	public NeitherSecureNorRandom() {
-		super(new NeitherSecureNorRandomSpi(), PROVIDER);
-	}
-
-	private static class NeitherSecureNorRandomSpi extends SecureRandomSpi {
-
-		@Override
-		protected byte[] engineGenerateSeed(int length) {
-			return new byte[length];
-		}
-
-		@Override
-		protected void engineNextBytes(byte[] b) {
-			fill(b, (byte) 0);
-		}
-
-		@Override
-		protected void engineSetSeed(byte[] seed) {
-			// Thank you for your input
-		}
-	}
-
-	private static class NeitherSecureNorRandomProvider extends Provider {
-
-		private NeitherSecureNorRandomProvider() {
-			super("NeitherSecureNorRandom", 1.0, "Only for testing");
-		}
-	}
-}

bramble-core/src/test/java/org/briarproject/bramble/crypto/PseudoRandom.java

@@ -0,0 +1,34 @@
+package org.briarproject.bramble.crypto;
+
+import org.bouncycastle.crypto.Digest;
+import org.bouncycastle.crypto.digests.Blake2bDigest;
+import org.bouncycastle.crypto.engines.Salsa20Engine;
+import org.bouncycastle.crypto.params.KeyParameter;
+import org.bouncycastle.crypto.params.ParametersWithIV;
+import org.briarproject.nullsafety.NotNullByDefault;
+
+import javax.annotation.concurrent.NotThreadSafe;
+
+@NotThreadSafe
+@NotNullByDefault
+class PseudoRandom {
+
+	private final Salsa20Engine cipher = new Salsa20Engine();
+
+	PseudoRandom(byte[] seed) {
+		// Hash the seed to produce a 32-byte key
+		byte[] key = new byte[32];
+		Digest digest = new Blake2bDigest(256);
+		digest.update(seed, 0, seed.length);
+		digest.doFinal(key, 0);
+		// Initialise the stream cipher with an all-zero nonce
+		byte[] nonce = new byte[8];
+		cipher.init(true, new ParametersWithIV(new KeyParameter(key), nonce));
+	}
+
+	byte[] nextBytes(int length) {
+		byte[] in = new byte[length], out = new byte[length];
+		cipher.processBytes(in, 0, length, out, 0);
+		return out;
+	}
+}

bramble-core/src/test/java/org/briarproject/bramble/crypto/PseudoSecureRandom.java

@@ -0,0 +1,46 @@
+package org.briarproject.bramble.crypto;
+
+import java.security.Provider;
+import java.security.SecureRandom;
+import java.security.SecureRandomSpi;
+
+class PseudoSecureRandom extends SecureRandom {
+
+	private static final Provider PROVIDER = new PseudoSecureRandomProvider();
+
+	PseudoSecureRandom(byte[] seed) {
+		super(new PseudoSecureRandomSpi(seed), PROVIDER);
+	}
+
+	private static class PseudoSecureRandomSpi extends SecureRandomSpi {
+
+		private final PseudoRandom pseudoRandom;
+
+		private PseudoSecureRandomSpi(byte[] seed) {
+			pseudoRandom = new PseudoRandom(seed);
+		}
+
+		@Override
+		protected byte[] engineGenerateSeed(int length) {
+			return pseudoRandom.nextBytes(length);
+		}
+
+		@Override
+		protected void engineNextBytes(byte[] b) {
+			byte[] random = pseudoRandom.nextBytes(b.length);
+			System.arraycopy(random, 0, b, 0, b.length);
+		}
+
+		@Override
+		protected void engineSetSeed(byte[] seed) {
+			// Thank you for your input
+		}
+	}
+
+	private static class PseudoSecureRandomProvider extends Provider {
+
+		private PseudoSecureRandomProvider() {
+			super("PseudoSecureRandom", 1.0, "Only for testing");
+		}
+	}
+}

bramble-core/src/test/java/org/briarproject/bramble/db/H2SqliteDatabasePerformanceComparisonTest.java

@@ -0,0 +1,37 @@
+package org.briarproject.bramble.db;
+
+import org.briarproject.bramble.api.db.DatabaseConfig;
+import org.briarproject.bramble.api.sync.MessageFactory;
+import org.briarproject.bramble.api.system.Clock;
+import org.junit.BeforeClass;
+
+import java.sql.Connection;
+
+import static org.briarproject.bramble.test.TestUtils.isOptionalTestEnabled;
+import static org.junit.Assume.assumeTrue;
+
+public class H2SqliteDatabasePerformanceComparisonTest
+		extends DatabasePerformanceComparisonTest {
+
+	@BeforeClass
+	public static void setUpClass() {
+		assumeTrue(isOptionalTestEnabled(
+				H2SqliteDatabasePerformanceComparisonTest.class));
+	}
+
+	@Override
+	Database<Connection> createDatabase(boolean conditionA,
+			DatabaseConfig databaseConfig, MessageFactory messageFactory,
+			Clock clock) {
+		if (conditionA) {
+			return new H2Database(databaseConfig, messageFactory, clock);
+		} else {
+			return new SqliteDatabase(databaseConfig, messageFactory, clock);
+		}
+	}
+
+	@Override
+	protected String getTestName() {
+		return getClass().getSimpleName();
+	}
+}

bramble-core/src/test/java/org/briarproject/bramble/db/HyperSqlDatabaseTest.java

@@ -10,14 +10,21 @@ import static org.junit.Assume.assumeTrue;
 
 public class HyperSqlDatabaseTest extends JdbcDatabaseTest {
 
+	@Override
 	@Before
 	public void setUp() {
 		assumeTrue(isCryptoStrengthUnlimited());
+		super.setUp();
 	}
 
 	@Override
 	protected JdbcDatabase createDatabase(DatabaseConfig config,
 			MessageFactory messageFactory, Clock clock) {
-		return new HyperSqlDatabase(config, messageFactory ,clock);
+		return new HyperSqlDatabase(config, messageFactory, clock);
+	}
+
+	@Override
+	public void testExplainGetMessageIds() {
+		// Ugh, HSQLDB can't handle EXPLAIN PLAN FOR in prepared statements
 	}
 }

bramble-core/src/test/java/org/briarproject/bramble/db/JdbcDatabaseTest.java

@@ -2500,6 +2500,21 @@ public abstract class JdbcDatabaseTest extends BrambleTestCase {
 		assertEquals(NO_CLEANUP_DEADLINE, db.getNextCleanupDeadline(txn));
 	}
 
+	// FIXME: Remove
+	@Test
+	public void testExplainGetMessageIds() throws Exception {
+		Database<Connection> db = open(false);
+		Connection txn = db.startTransaction();
+		db.addGroup(txn, group);
+		Collection<String> explanation = db.explainGetMessageIds(txn, groupId);
+		db.commitTransaction(txn);
+		db.close();
+
+		System.out.println("getMessageIds(T, GroupId)");
+		for (String line : explanation) System.out.println(line);
+		System.out.println();
+	}
+
 	private Database<Connection> open(boolean resume) throws Exception {
 		return open(resume, new TestMessageFactory(), new SystemClock());
 	}

bramble-core/src/test/java/org/briarproject/bramble/db/SqliteDatabaseTest.java

@@ -0,0 +1,25 @@
+package org.briarproject.bramble.db;
+
+import org.briarproject.bramble.api.db.DatabaseConfig;
+import org.briarproject.bramble.api.sync.MessageFactory;
+import org.briarproject.bramble.api.system.Clock;
+import org.junit.Before;
+
+import static org.briarproject.bramble.test.TestUtils.isCryptoStrengthUnlimited;
+import static org.junit.Assume.assumeTrue;
+
+public class SqliteDatabaseTest extends JdbcDatabaseTest {
+
+	@Override
+	@Before
+	public void setUp() {
+		assumeTrue(isCryptoStrengthUnlimited());
+		super.setUp();
+	}
+
+	@Override
+	protected JdbcDatabase createDatabase(DatabaseConfig config,
+			MessageFactory messageFactory, Clock clock) {
+		return new SqliteDatabase(config, messageFactory, clock);
+	}
+}

bramble-core/src/test/java/org/briarproject/bramble/keyagreement/KeyAgreementTransportTest.java

@@ -15,10 +15,9 @@ import org.briarproject.bramble.test.BrambleMockTestCase;
 import org.briarproject.bramble.test.CaptureArgumentAction;
 import org.briarproject.bramble.test.PredicateMatcher;
 import org.jmock.Expectations;
+import org.jmock.imposters.ByteBuddyClassImposteriser;
 import org.junit.Test;
 
-import java.io.ByteArrayInputStream;
-import java.io.ByteArrayOutputStream;
 import java.io.InputStream;
 import java.io.OutputStream;
 import java.util.concurrent.atomic.AtomicReference;
@@ -52,12 +51,17 @@ public class KeyAgreementTransportTest extends BrambleMockTestCase {
 	private final KeyAgreementConnection keyAgreementConnection =
 			new KeyAgreementConnection(duplexTransportConnection, transportId);
 
-	private final InputStream inputStream =
-			new ByteArrayInputStream(new byte[0]);
-	private final OutputStream outputStream = new ByteArrayOutputStream();
+	private final InputStream inputStream;
+	private final OutputStream outputStream;
 
 	private KeyAgreementTransport kat;
 
+	public KeyAgreementTransportTest() {
+		context.setImposteriser(ByteBuddyClassImposteriser.INSTANCE);
+		inputStream = context.mock(InputStream.class);
+		outputStream = context.mock(OutputStream.class);
+	}
+
 	@Test
 	public void testSendKey() throws Exception {
 		byte[] key = getRandomBytes(123);

bramble-core/src/test/java/org/briarproject/bramble/plugin/PollerImplTest.java

@@ -21,11 +21,11 @@ import org.briarproject.bramble.api.properties.TransportProperties;
 import org.briarproject.bramble.api.properties.TransportPropertyManager;
 import org.briarproject.bramble.api.system.Clock;
 import org.briarproject.bramble.api.system.TaskScheduler;
-import org.briarproject.bramble.crypto.NeitherSecureNorRandom;
 import org.briarproject.bramble.test.BrambleMockTestCase;
 import org.briarproject.bramble.test.ImmediateExecutor;
 import org.briarproject.bramble.test.RunAction;
 import org.jmock.Expectations;
+import org.jmock.imposters.ByteBuddyClassImposteriser;
 import org.junit.Test;
 
 import java.security.SecureRandom;
@@ -55,6 +55,7 @@ public class PollerImplTest extends BrambleMockTestCase {
 			context.mock(TransportPropertyManager.class);
 	private final Clock clock = context.mock(Clock.class);
 	private final Cancellable cancellable = context.mock(Cancellable.class);
+	private final SecureRandom random;
 
 	private final Executor ioExecutor = new ImmediateExecutor();
 	private final TransportId transportId = getTransportId();
@@ -66,8 +67,8 @@ public class PollerImplTest extends BrambleMockTestCase {
 	private final PollerImpl poller;
 
 	public PollerImplTest() {
-		// Use a fake SecureRandom that returns all zeroes
-		SecureRandom random = new NeitherSecureNorRandom();
+		context.setImposteriser(ByteBuddyClassImposteriser.INSTANCE);
+		random = context.mock(SecureRandom.class);
 		Executor wakefulIoExecutor = new ImmediateExecutor();
 		poller = new PollerImpl(ioExecutor, wakefulIoExecutor, scheduler,
 				connectionManager, connectionRegistry, pluginManager,
@@ -351,10 +352,12 @@ public class PollerImplTest extends BrambleMockTestCase {
 			// Running the polling task schedules the next polling task
 			oneOf(plugin).getPollingInterval();
 			will(returnValue(pollingInterval));
+			oneOf(random).nextDouble();
+			will(returnValue(0.5));
 			oneOf(clock).currentTimeMillis();
 			will(returnValue(now));
 			oneOf(scheduler).schedule(with(any(Runnable.class)),
-					with(ioExecutor), with(0L),
+					with(ioExecutor), with((long) (pollingInterval * 0.5)),
 					with(MILLISECONDS));
 			will(returnValue(cancellable));
 			// Get the transport properties and connected contacts
@@ -393,10 +396,12 @@ public class PollerImplTest extends BrambleMockTestCase {
 			// Running the polling task schedules the next polling task
 			oneOf(plugin).getPollingInterval();
 			will(returnValue(pollingInterval));
+			oneOf(random).nextDouble();
+			will(returnValue(0.5));
 			oneOf(clock).currentTimeMillis();
 			will(returnValue(now));
 			oneOf(scheduler).schedule(with(any(Runnable.class)),
-					with(ioExecutor), with(0L),
+					with(ioExecutor), with((long) (pollingInterval * 0.5)),
 					with(MILLISECONDS));
 			will(returnValue(cancellable));
 			// Get the transport properties and connected contacts

bramble-core/witness.gradle

@@ -1,67 +1,74 @@
 dependencyVerification {
 	verify = [
-		'cglib:cglib:3.2.8:cglib-3.2.8.jar:3f64de999ecc5595dc84ca8ff0879d8a34c8623f9ef3c517a53ed59023fcb9db',
-		'com.fasterxml.jackson.core:jackson-annotations:2.13.4:jackson-annotations-2.13.4.jar:ac5b27a634942391ca113850ee7db01df1499a240174021263501c05fc653b44',
-		'com.fasterxml.jackson.core:jackson-core:2.13.4:jackson-core-2.13.4.jar:4c2e043200edd9ee7ba6fc378bd5c17784a5bf2388e152d208068b51fd0839cf',
-		'com.fasterxml.jackson.core:jackson-databind:2.13.4:jackson-databind-2.13.4.jar:c9faff420d9e2c7e1e4711dbeebec2506a32c9942027211c5c293d8d87807eb6',
-		'com.google.code.findbugs:annotations:3.0.1:annotations-3.0.1.jar:6b47ff0a6de0ce17cbedc3abb0828ca5bce3009d53ea47b3723ff023c4742f79',
-		'com.google.code.findbugs:jsr305:3.0.2:jsr305-3.0.2.jar:766ad2a0783f2687962c8ad74ceecc38a28b9f72a2d085ee438b7813e928d0c7',
-		'com.google.dagger:dagger-compiler:2.51.1:dagger-compiler-2.51.1.jar:14cf2def1c4c8cd3b977840e297b463191d537cd1c8330992ca5c0b341a641ad',
-		'com.google.dagger:dagger-spi:2.51.1:dagger-spi-2.51.1.jar:deb52030b92b27c5dcd76b2c0747f1cf105b60939f6073b43eb06cfe7c9ba601',
-		'com.google.dagger:dagger:2.51.1:dagger-2.51.1.jar:c3891a4c4a4e48682888ca321eaf8497004b286e1d9a2936867373219f7dd86d',
-		'com.google.devtools.ksp:symbol-processing-api:1.9.20-1.0.14:symbol-processing-api-1.9.20-1.0.14.jar:d0339396f40dc9eb3b3f7bc86257f93869ee23448fa31ec4a1de900c6b7ae6d7',
-		'com.google.errorprone:error_prone_annotations:2.23.0:error_prone_annotations-2.23.0.jar:ec6f39f068b6ff9ac323c68e28b9299f8c0a80ca512dccb1d4a70f40ac3ec054',
-		'com.google.errorprone:javac-shaded:9-dev-r4023-3:javac-shaded-9-dev-r4023-3.jar:65bfccf60986c47fbc17c9ebab0be626afc41741e0a6ec7109e0768817a36f30',
-		'com.google.googlejavaformat:google-java-format:1.5:google-java-format-1.5.jar:aa19ad7850fb85178aa22f2fddb163b84d6ce4d0035872f30d4408195ca1144e',
-		'com.google.guava:failureaccess:1.0.2:failureaccess-1.0.2.jar:8a8f81cf9b359e3f6dfa691a1e776985c061ef2f223c9b2c80753e1b458e8064',
-		'com.google.guava:guava:33.0.0-jre:guava-33.0.0-jre.jar:f4d85c3e4d411694337cb873abea09b242b664bb013320be6105327c45991537',
-		'com.google.guava:listenablefuture:9999.0-empty-to-avoid-conflict-with-guava:listenablefuture-9999.0-empty-to-avoid-conflict-with-guava.jar:b372a037d4230aa57fbeffdef30fd6123f9c0c2db85d0aced00c91b974f33f99',
-		'com.h2database:h2:1.4.192:h2-1.4.192.jar:225b22e9857235c46c93861410b60b8c81c10dc8985f4faf188985ba5445126c',
-		'com.squareup.okhttp3:mockwebserver:4.10.0:mockwebserver-4.10.0.jar:af29da234e63159d6e0dea43bf8288eea97d71cdf1651a5ee2d6c0d0d4adbf8f',
-		'com.squareup.okhttp3:okhttp:4.12.0:okhttp-4.12.0.jar:b1050081b14bb7a3a7e55a4d3ef01b5dcfabc453b4573a4fc019767191d5f4e0',
-		'com.squareup.okio:okio-jvm:3.6.0:okio-jvm-3.6.0.jar:67543f0736fc422ae927ed0e504b98bc5e269fda0d3500579337cb713da28412',
-		'com.squareup:javapoet:1.13.0:javapoet-1.13.0.jar:4c7517e848a71b36d069d12bb3bf46a70fd4cda3105d822b0ed2e19c00b69291',
-		'com.squareup:kotlinpoet:1.11.0:kotlinpoet-1.11.0.jar:2887ada1ca03dd83baa2758640d87e840d1907564db0ef88d2289c868a980492',
-		'javax.inject:javax.inject:1:javax.inject-1.jar:91c77044a50c481636c32d916fd89c9118a72195390452c81065080f957de7ff',
-		'junit:junit:4.13.2:junit-4.13.2.jar:8e495b634469d64fb8acfa3495a065cbacc8a0fff55ce1e31007be4c16dc57d3',
-		'net.bytebuddy:byte-buddy:1.9.12:byte-buddy-1.9.12.jar:3688c3d434bebc3edc5516296a2ed0f47b65e451071b4afecad84f902f0efc11',
-		'net.i2p.crypto:eddsa:0.2.0:eddsa-0.2.0.jar:a7cb1b85c16e2f0730b9204106929a1d9aaae1df728adc7041a8b8b605692140',
-		'net.jcip:jcip-annotations:1.0:jcip-annotations-1.0.jar:be5805392060c71474bf6c9a67a099471274d30b83eef84bfc4e0889a4f1dcc0',
-		'net.jodah:concurrentunit:0.4.6:concurrentunit-0.4.6.jar:760e6d4ab7801484de09da621b61141f3b2c2432949da9eb13f076e5d9a5e0a5',
-		'net.ltgt.gradle.incap:incap:0.2:incap-0.2.jar:b625b9806b0f1e4bc7a2e3457119488de3cd57ea20feedd513db070a573a4ffd',
-		'org.apache-extras.beanshell:bsh:2.0b6:bsh-2.0b6.jar:a17955976070c0573235ee662f2794a78082758b61accffce8d3f8aedcd91047',
-		'org.bitlet:weupnp:0.1.4:weupnp-0.1.4.jar:88df7e6504929d00bdb832863761385c68ab92af945b04f0770b126270a444fb',
-		'org.bouncycastle:bcprov-jdk15to18:1.82:bcprov-jdk15to18-1.82.jar:9c9ccecb08a0b00bd2a74afa6567d81d61a02bba1364f24e33fa0c4c1e929821',
-		'org.briarproject:jtorctl:0.5:jtorctl-0.5.jar:43f8c7d390169772b9a2c82ab806c8414c136a2a8636c555e22754bb7260793b',
-		'org.briarproject:null-safety:0.1:null-safety-0.1.jar:161760de5e838cb982bafa973df820675d4397098e9a91637a36a306d43ba011',
-		'org.briarproject:onionwrapper-core:0.1.4:onionwrapper-core-0.1.4.jar:d0a48de7198d48eb0182a25d109bc06811484d1da799c6dfa5e2581285880a49',
-		'org.briarproject:socks-socket:0.1:socks-socket-0.1.jar:e5898822d10f5390363c5dddb945891648c92cf93ba50709e07f0d173ec0eb4b',
-		'org.checkerframework:checker-compat-qual:2.5.5:checker-compat-qual-2.5.5.jar:11d134b245e9cacc474514d2d66b5b8618f8039a1465cdc55bbc0b34e0008b7a',
-		'org.checkerframework:checker-qual:3.41.0:checker-qual-3.41.0.jar:2f9f245bf68e4259d610894f2406dc1f6363dc639302bd566e8272e4f4541172',
-		'org.codehaus.mojo.signature:java16:1.1:java16-1.1.signature:53799223a2c98dba2d0add810bed76315460df285c69e4f397ae6098f87dd619',
-		'org.codehaus.mojo:animal-sniffer-annotations:1.24:animal-sniffer-annotations-1.24.jar:c720e6e5bcbe6b2f48ded75a47bccdb763eede79d14330102e0d352e3d89ed92',
-		'org.codehaus.mojo:animal-sniffer:1.24:animal-sniffer-1.24.jar:65d028de87134f0955e3a964fe438fc3e99e77b237a77e5e165869a8ff59db5f',
-		'org.hamcrest:hamcrest-core:2.1:hamcrest-core-2.1.jar:e09109e54a289d88506b9bfec987ddd199f4217c9464132668351b9a4f00bee9',
-		'org.hamcrest:hamcrest-library:2.1:hamcrest-library-2.1.jar:b7e2b6895b3b679f0e47b6380fda391b225e9b78505db9d8bdde8d3cc8d52a21',
-		'org.hamcrest:hamcrest:2.1:hamcrest-2.1.jar:ba93b2e3a562322ba432f0a1b53addcc55cb188253319a020ed77f824e692050',
-		'org.hsqldb:hsqldb:2.3.5:hsqldb-2.3.5.jar:6676a6977ac98997a80f827ddbd3fe8ca1e0853dad1492512135fd1a222ccfad',
-		'org.jetbrains.kotlin:kotlin-reflect:1.6.10:kotlin-reflect-1.6.10.jar:3277ac102ae17aad10a55abec75ff5696c8d109790396434b496e75087854203',
-		'org.jetbrains.kotlin:kotlin-stdlib-common:1.9.10:kotlin-stdlib-common-1.9.10.jar:cde3341ba18a2ba262b0b7cf6c55b20c90e8d434e42c9a13e6a3f770db965a88',
-		'org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.9.0:kotlin-stdlib-jdk7-1.9.0.jar:b7979a7aac94055f0d9f1fd3b47ce5ffe1cb6032a842ba9fbe7186f085289178',
-		'org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.9.10:kotlin-stdlib-jdk7-1.9.10.jar:ac6361bf9ad1ed382c2103d9712c47cdec166232b4903ed596e8876b0681c9b7',
-		'org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.9.0:kotlin-stdlib-jdk8-1.9.0.jar:a59fa24fdf1ffb594baecdbf0fd10010f977cea10236d487fe3464977a7377fa',
-		'org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.9.10:kotlin-stdlib-jdk8-1.9.10.jar:a4c74d94d64ce1abe53760fe0389dd941f6fc558d0dab35e47c085a11ec80f28',
-		'org.jetbrains.kotlin:kotlin-stdlib:1.9.10:kotlin-stdlib-1.9.10.jar:55e989c512b80907799f854309f3bc7782c5b3d13932442d0379d5c472711504',
-		'org.jetbrains.kotlin:kotlin-stdlib:1.9.20:kotlin-stdlib-1.9.20.jar:28a35bcdff46d864f80f346a617e486284b208d17378c41900dfb1de95a90e6c',
-		'org.jetbrains:annotations:13.0:annotations-13.0.jar:ace2a10dc8e2d5fd34925ecac03e4988b2c0f851650c94b8cef49ba1bd111478',
-		'org.jmock:jmock-imposters:2.12.0:jmock-imposters-2.12.0.jar:3b836269745a137c9b2347e8d7c2104845b126ef04f012d6bfd94f1a7dea7b09',
-		'org.jmock:jmock-junit4:2.12.0:jmock-junit4-2.12.0.jar:3233062fc889637c151a24f1ee086bad04321ab7d8264fef279daff0fa27205b',
-		'org.jmock:jmock-legacy:2.12.0:jmock-legacy-2.12.0.jar:dea3a9cca653d082e2fe7e40232e982fe03a9984c7d67ceff24f3e03fe580dcd',
-		'org.jmock:jmock-testjar:2.12.0:jmock-testjar-2.12.0.jar:efefbcf6cd294d0e29f0c46eb2a3380d4ca4e1763ff719c69e2f2ac62f564a04',
-		'org.jmock:jmock:2.12.0:jmock-2.12.0.jar:266d07314c0cd343c46ff8a55601272de8cf406807caf55e6f313295f83d10be',
-		'org.objenesis:objenesis:3.0.1:objenesis-3.0.1.jar:7a8ff780b9ff48415d7c705f60030b0acaa616e7f823c98eede3b63508d4e984',
-		'org.ow2.asm:asm:7.1:asm-7.1.jar:4ab2fa2b6d2cc9ccb1eaa05ea329c407b47b13ed2915f62f8c4b8cc96258d4de',
-		'org.ow2.asm:asm:9.7:asm-9.7.jar:adf46d5e34940bdf148ecdd26a9ee8eea94496a72034ff7141066b3eea5c4e9d',
-		'org.whispersystems:curve25519-java:0.5.0:curve25519-java-0.5.0.jar:0aadd43cf01d11e9b58f867b3c4f25c3194e8b0623d1953d32dfbfbee009e38d',
+			'cglib:cglib:3.2.8:cglib-3.2.8.jar:3f64de999ecc5595dc84ca8ff0879d8a34c8623f9ef3c517a53ed59023fcb9db',
+			'com.fasterxml.jackson.core:jackson-annotations:2.13.4:jackson-annotations-2.13.4.jar:ac5b27a634942391ca113850ee7db01df1499a240174021263501c05fc653b44',
+			'com.fasterxml.jackson.core:jackson-core:2.13.4:jackson-core-2.13.4.jar:4c2e043200edd9ee7ba6fc378bd5c17784a5bf2388e152d208068b51fd0839cf',
+			'com.fasterxml.jackson.core:jackson-databind:2.13.4:jackson-databind-2.13.4.jar:c9faff420d9e2c7e1e4711dbeebec2506a32c9942027211c5c293d8d87807eb6',
+			'com.google.code.findbugs:annotations:3.0.1:annotations-3.0.1.jar:6b47ff0a6de0ce17cbedc3abb0828ca5bce3009d53ea47b3723ff023c4742f79',
+			'com.google.code.findbugs:jsr305:3.0.2:jsr305-3.0.2.jar:766ad2a0783f2687962c8ad74ceecc38a28b9f72a2d085ee438b7813e928d0c7',
+			'com.google.dagger:dagger-compiler:2.45:dagger-compiler-2.45.jar:5617dfb994537dba5b41f3744a6dd13ec3cd99789c065e0d5c6fa9f21cf7ca25',
+			'com.google.dagger:dagger-producers:2.45:dagger-producers-2.45.jar:a05abb4c3ccf6bb0f056bdcb5ef973898ecf172952ab5948a824aeea6c86ecaa',
+			'com.google.dagger:dagger-spi:2.45:dagger-spi-2.45.jar:7cd6f0b09d88e64a9c97bc80e544ab8ac8fdee9301754413585a74cf64222b27',
+			'com.google.dagger:dagger:2.45:dagger-2.45.jar:f011cae7d2c0fb7ea17c34e05bc10e768b1081a5892ad019cf1fdb0e125c49c1',
+			'com.google.devtools.ksp:symbol-processing-api:1.7.0-1.0.6:symbol-processing-api-1.7.0-1.0.6.jar:adc29417be5ca9ff42118105fea4e36d9ef44987abfc41432309371a60198941',
+			'com.google.errorprone:error_prone_annotations:2.7.1:error_prone_annotations-2.7.1.jar:cd5257c08a246cf8628817ae71cb822be192ef91f6881ca4a3fcff4f1de1cff3',
+			'com.google.errorprone:javac-shaded:9-dev-r4023-3:javac-shaded-9-dev-r4023-3.jar:65bfccf60986c47fbc17c9ebab0be626afc41741e0a6ec7109e0768817a36f30',
+			'com.google.googlejavaformat:google-java-format:1.5:google-java-format-1.5.jar:aa19ad7850fb85178aa22f2fddb163b84d6ce4d0035872f30d4408195ca1144e',
+			'com.google.guava:failureaccess:1.0.1:failureaccess-1.0.1.jar:a171ee4c734dd2da837e4b16be9df4661afab72a41adaf31eb84dfdaf936ca26',
+			'com.google.guava:guava:31.0.1-jre:guava-31.0.1-jre.jar:d5be94d65e87bd219fb3193ad1517baa55a3b88fc91d21cf735826ab5af087b9',
+			'com.google.guava:listenablefuture:9999.0-empty-to-avoid-conflict-with-guava:listenablefuture-9999.0-empty-to-avoid-conflict-with-guava.jar:b372a037d4230aa57fbeffdef30fd6123f9c0c2db85d0aced00c91b974f33f99',
+			'com.google.j2objc:j2objc-annotations:1.3:j2objc-annotations-1.3.jar:21af30c92267bd6122c0e0b4d20cccb6641a37eaf956c6540ec471d584e64a7b',
+			'com.h2database:h2:1.4.192:h2-1.4.192.jar:225b22e9857235c46c93861410b60b8c81c10dc8985f4faf188985ba5445126c',
+			'com.squareup.okhttp3:mockwebserver:4.10.0:mockwebserver-4.10.0.jar:af29da234e63159d6e0dea43bf8288eea97d71cdf1651a5ee2d6c0d0d4adbf8f',
+			'com.squareup.okhttp3:okhttp:4.10.0:okhttp-4.10.0.jar:7580f14fa1691206e37081ad3f92063b1603b328da0bb316f2fef02e0562e7ec',
+			'com.squareup.okio:okio-jvm:3.0.0:okio-jvm-3.0.0.jar:be64a0cc1f28ea9cd5c970dd7e7557af72c808d738c495b397bf897c9921e907',
+			'com.squareup:javapoet:1.13.0:javapoet-1.13.0.jar:4c7517e848a71b36d069d12bb3bf46a70fd4cda3105d822b0ed2e19c00b69291',
+			'com.squareup:kotlinpoet:1.11.0:kotlinpoet-1.11.0.jar:2887ada1ca03dd83baa2758640d87e840d1907564db0ef88d2289c868a980492',
+			'io.github.willena:sqlite-jdbc:3.41.2.1:sqlite-jdbc-3.41.2.1.jar:fb60e7137c1791db89240701338d31ca42a0bec5508c1aab1c1131cf885f2309',
+			'javax.inject:javax.inject:1:javax.inject-1.jar:91c77044a50c481636c32d916fd89c9118a72195390452c81065080f957de7ff',
+			'junit:junit:4.13.2:junit-4.13.2.jar:8e495b634469d64fb8acfa3495a065cbacc8a0fff55ce1e31007be4c16dc57d3',
+			'net.bytebuddy:byte-buddy:1.9.12:byte-buddy-1.9.12.jar:3688c3d434bebc3edc5516296a2ed0f47b65e451071b4afecad84f902f0efc11',
+			'net.i2p.crypto:eddsa:0.2.0:eddsa-0.2.0.jar:a7cb1b85c16e2f0730b9204106929a1d9aaae1df728adc7041a8b8b605692140',
+			'net.jcip:jcip-annotations:1.0:jcip-annotations-1.0.jar:be5805392060c71474bf6c9a67a099471274d30b83eef84bfc4e0889a4f1dcc0',
+			'net.jodah:concurrentunit:0.4.6:concurrentunit-0.4.6.jar:760e6d4ab7801484de09da621b61141f3b2c2432949da9eb13f076e5d9a5e0a5',
+			'net.ltgt.gradle.incap:incap:0.2:incap-0.2.jar:b625b9806b0f1e4bc7a2e3457119488de3cd57ea20feedd513db070a573a4ffd',
+			'org.apache-extras.beanshell:bsh:2.0b6:bsh-2.0b6.jar:a17955976070c0573235ee662f2794a78082758b61accffce8d3f8aedcd91047',
+			'org.bitlet:weupnp:0.1.4:weupnp-0.1.4.jar:88df7e6504929d00bdb832863761385c68ab92af945b04f0770b126270a444fb',
+			'org.bouncycastle:bcprov-jdk15to18:1.71:bcprov-jdk15to18-1.71.jar:143aaa4a40edd5fc2a18db7900059f6c16f4d931b94b94b20f7e2238e6662886',
+			'org.briarproject:jtorctl:0.5:jtorctl-0.5.jar:43f8c7d390169772b9a2c82ab806c8414c136a2a8636c555e22754bb7260793b',
+			'org.briarproject:null-safety:0.1:null-safety-0.1.jar:161760de5e838cb982bafa973df820675d4397098e9a91637a36a306d43ba011',
+			'org.briarproject:onionwrapper-core:0.0.5:onionwrapper-core-0.0.5.jar:9071678323535cb3dfe0f3add96066037db43ea024333eba0117c759bcbd8d63',
+			'org.briarproject:socks-socket:0.1:socks-socket-0.1.jar:e5898822d10f5390363c5dddb945891648c92cf93ba50709e07f0d173ec0eb4b',
+			'org.checkerframework:checker-compat-qual:2.5.5:checker-compat-qual-2.5.5.jar:11d134b245e9cacc474514d2d66b5b8618f8039a1465cdc55bbc0b34e0008b7a',
+			'org.checkerframework:checker-qual:3.12.0:checker-qual-3.12.0.jar:ff10785ac2a357ec5de9c293cb982a2cbb605c0309ea4cc1cb9b9bc6dbe7f3cb',
+			'org.codehaus.mojo.signature:java16:1.1:java16-1.1.signature:53799223a2c98dba2d0add810bed76315460df285c69e4f397ae6098f87dd619',
+			'org.codehaus.mojo:animal-sniffer-ant-tasks:1.22:animal-sniffer-ant-tasks-1.22.jar:3f6afeb3e09301d2d7179ed1db21e3ad8846c1e38415ad832a395138ae3f4218',
+			'org.codehaus.mojo:animal-sniffer:1.22:animal-sniffer-1.22.jar:f18c11a25bdd8b520b9c6a28cbb6f33007c812ab0051b6be3f0778e660aa501c',
+			'org.hamcrest:hamcrest-core:2.1:hamcrest-core-2.1.jar:e09109e54a289d88506b9bfec987ddd199f4217c9464132668351b9a4f00bee9',
+			'org.hamcrest:hamcrest-library:2.1:hamcrest-library-2.1.jar:b7e2b6895b3b679f0e47b6380fda391b225e9b78505db9d8bdde8d3cc8d52a21',
+			'org.hamcrest:hamcrest:2.1:hamcrest-2.1.jar:ba93b2e3a562322ba432f0a1b53addcc55cb188253319a020ed77f824e692050',
+			'org.hsqldb:hsqldb:2.3.5:hsqldb-2.3.5.jar:6676a6977ac98997a80f827ddbd3fe8ca1e0853dad1492512135fd1a222ccfad',
+			'org.jetbrains.kotlin:kotlin-reflect:1.6.10:kotlin-reflect-1.6.10.jar:3277ac102ae17aad10a55abec75ff5696c8d109790396434b496e75087854203',
+			'org.jetbrains.kotlin:kotlin-stdlib-common:1.6.20:kotlin-stdlib-common-1.6.20.jar:8da40a2520d30dcb1012176fe93d24e82d08a3e346c37e0343b0fb6f64f6be01',
+			'org.jetbrains.kotlin:kotlin-stdlib-common:1.7.0:kotlin-stdlib-common-1.7.0.jar:59c6ff64fe9a6604afce03e8aaa75f83586c6030ac71fb0b34ee7cdefed3618f',
+			'org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.5.31:kotlin-stdlib-jdk7-1.5.31.jar:a25bf47353ce899d843cbddee516d621a73473e7fba97f8d0301e7b4aed7c15f',
+			'org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.6.10:kotlin-stdlib-jdk7-1.6.10.jar:2aedcdc6b69b33bdf5cc235bcea88e7cf6601146bb6bcdffdb312bbacd7be261',
+			'org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.7.0:kotlin-stdlib-jdk7-1.7.0.jar:07e91be9b2ca20672d2bdb7e181b766e73453a2da13492b5ddaee8fa47aea239',
+			'org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.5.31:kotlin-stdlib-jdk8-1.5.31.jar:b548f7767aacf029d2417e47440742bd6d3ebede19b60386e23554ce5c4c5fdc',
+			'org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.6.10:kotlin-stdlib-jdk8-1.6.10.jar:1456d82d039ea30d8485b032901f52bbf07e7cdbe8bb1f8708ad32a8574c41ce',
+			'org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.7.0:kotlin-stdlib-jdk8-1.7.0.jar:cf058e11db1dfc9944680c8c61b95ac689aaaa8a3eb30bced028100f038f030b',
+			'org.jetbrains.kotlin:kotlin-stdlib:1.6.20:kotlin-stdlib-1.6.20.jar:eeb51c2b67b26233fd81d0bc4f8044ec849718890905763ceffd84a31e2cb799',
+			'org.jetbrains.kotlin:kotlin-stdlib:1.7.0:kotlin-stdlib-1.7.0.jar:aa88e9625577957f3249a46cb6e166ee09b369e600f7a11d148d16b0a6d87f05',
+			'org.jetbrains.kotlinx:kotlinx-metadata-jvm:0.5.0:kotlinx-metadata-jvm-0.5.0.jar:ca063a96639b08b9eaa0de4d65e899480740a6efbe28ab9a8681a2ced03055a4',
+			'org.jetbrains:annotations:13.0:annotations-13.0.jar:ace2a10dc8e2d5fd34925ecac03e4988b2c0f851650c94b8cef49ba1bd111478',
+			'org.jmock:jmock-imposters:2.12.0:jmock-imposters-2.12.0.jar:3b836269745a137c9b2347e8d7c2104845b126ef04f012d6bfd94f1a7dea7b09',
+			'org.jmock:jmock-junit4:2.12.0:jmock-junit4-2.12.0.jar:3233062fc889637c151a24f1ee086bad04321ab7d8264fef279daff0fa27205b',
+			'org.jmock:jmock-legacy:2.12.0:jmock-legacy-2.12.0.jar:dea3a9cca653d082e2fe7e40232e982fe03a9984c7d67ceff24f3e03fe580dcd',
+			'org.jmock:jmock-testjar:2.12.0:jmock-testjar-2.12.0.jar:efefbcf6cd294d0e29f0c46eb2a3380d4ca4e1763ff719c69e2f2ac62f564a04',
+			'org.jmock:jmock:2.12.0:jmock-2.12.0.jar:266d07314c0cd343c46ff8a55601272de8cf406807caf55e6f313295f83d10be',
+			'org.objenesis:objenesis:3.0.1:objenesis-3.0.1.jar:7a8ff780b9ff48415d7c705f60030b0acaa616e7f823c98eede3b63508d4e984',
+			'org.ow2.asm:asm:7.1:asm-7.1.jar:4ab2fa2b6d2cc9ccb1eaa05ea329c407b47b13ed2915f62f8c4b8cc96258d4de',
+			'org.ow2.asm:asm:9.3:asm-9.3.jar:1263369b59e29c943918de11d6d6152e2ec6085ce63e5710516f8c67d368e4bc',
+			'org.whispersystems:curve25519-java:0.5.0:curve25519-java-0.5.0.jar:0aadd43cf01d11e9b58f867b3c4f25c3194e8b0623d1953d32dfbfbee009e38d',
 	]
 }

bramble-java/src/main/java/org/briarproject/bramble/plugin/tor/MacTorPluginFactory.java

@@ -19,6 +19,7 @@ import org.briarproject.onionwrapper.CircumventionProvider;
 import org.briarproject.onionwrapper.LocationUtils;
 import org.briarproject.onionwrapper.MacTorWrapper;
 import org.briarproject.onionwrapper.TorWrapper;
+import org.briarproject.onionwrapper.UnixTorWrapper;
 
 import java.io.File;
 import java.util.concurrent.Executor;
@@ -79,6 +80,6 @@ public class MacTorPluginFactory extends TorPluginFactory {
 		return new TorPlugin(ioExecutor, wakefulIoExecutor, networkManager,
 				locationUtils, torSocketFactory, circumventionProvider,
 				batteryManager, backoff, torRendezvousCrypto, tor, callback,
-				MAX_LATENCY, MAX_IDLE_TIME);
+				MAX_LATENCY, MAX_IDLE_TIME, true);
 	}
 }

bramble-java/src/main/java/org/briarproject/bramble/plugin/tor/UnixTorPluginFactory.java

@@ -81,6 +81,6 @@ public class UnixTorPluginFactory extends TorPluginFactory {
 		return new TorPlugin(ioExecutor, wakefulIoExecutor, networkManager,
 				locationUtils, torSocketFactory, circumventionProvider,
 				batteryManager, backoff, torRendezvousCrypto, tor, callback,
-				MAX_LATENCY, MAX_IDLE_TIME);
+				MAX_LATENCY, MAX_IDLE_TIME, true);
 	}
 }

bramble-java/src/main/java/org/briarproject/bramble/plugin/tor/WindowsTorPluginFactory.java

@@ -78,6 +78,6 @@ public class WindowsTorPluginFactory extends TorPluginFactory {
 		return new TorPlugin(ioExecutor, wakefulIoExecutor, networkManager,
 				locationUtils, torSocketFactory, circumventionProvider,
 				batteryManager, backoff, torRendezvousCrypto, tor, callback,
-				MAX_LATENCY, MAX_IDLE_TIME);
+				MAX_LATENCY, MAX_IDLE_TIME, true);
 	}
 }

bramble-java/witness.gradle

@@ -1,48 +1,52 @@
 dependencyVerification {
 	verify = [
-		'cglib:cglib:3.2.8:cglib-3.2.8.jar:3f64de999ecc5595dc84ca8ff0879d8a34c8623f9ef3c517a53ed59023fcb9db',
-		'com.google.code.findbugs:annotations:3.0.1:annotations-3.0.1.jar:6b47ff0a6de0ce17cbedc3abb0828ca5bce3009d53ea47b3723ff023c4742f79',
-		'com.google.code.findbugs:jsr305:3.0.2:jsr305-3.0.2.jar:766ad2a0783f2687962c8ad74ceecc38a28b9f72a2d085ee438b7813e928d0c7',
-		'com.google.dagger:dagger-compiler:2.51.1:dagger-compiler-2.51.1.jar:14cf2def1c4c8cd3b977840e297b463191d537cd1c8330992ca5c0b341a641ad',
-		'com.google.dagger:dagger-spi:2.51.1:dagger-spi-2.51.1.jar:deb52030b92b27c5dcd76b2c0747f1cf105b60939f6073b43eb06cfe7c9ba601',
-		'com.google.dagger:dagger:2.51.1:dagger-2.51.1.jar:c3891a4c4a4e48682888ca321eaf8497004b286e1d9a2936867373219f7dd86d',
-		'com.google.devtools.ksp:symbol-processing-api:1.9.20-1.0.14:symbol-processing-api-1.9.20-1.0.14.jar:d0339396f40dc9eb3b3f7bc86257f93869ee23448fa31ec4a1de900c6b7ae6d7',
-		'com.google.errorprone:error_prone_annotations:2.23.0:error_prone_annotations-2.23.0.jar:ec6f39f068b6ff9ac323c68e28b9299f8c0a80ca512dccb1d4a70f40ac3ec054',
-		'com.google.errorprone:javac-shaded:9-dev-r4023-3:javac-shaded-9-dev-r4023-3.jar:65bfccf60986c47fbc17c9ebab0be626afc41741e0a6ec7109e0768817a36f30',
-		'com.google.googlejavaformat:google-java-format:1.5:google-java-format-1.5.jar:aa19ad7850fb85178aa22f2fddb163b84d6ce4d0035872f30d4408195ca1144e',
-		'com.google.guava:failureaccess:1.0.2:failureaccess-1.0.2.jar:8a8f81cf9b359e3f6dfa691a1e776985c061ef2f223c9b2c80753e1b458e8064',
-		'com.google.guava:guava:33.0.0-jre:guava-33.0.0-jre.jar:f4d85c3e4d411694337cb873abea09b242b664bb013320be6105327c45991537',
-		'com.google.guava:listenablefuture:9999.0-empty-to-avoid-conflict-with-guava:listenablefuture-9999.0-empty-to-avoid-conflict-with-guava.jar:b372a037d4230aa57fbeffdef30fd6123f9c0c2db85d0aced00c91b974f33f99',
-		'com.squareup:javapoet:1.13.0:javapoet-1.13.0.jar:4c7517e848a71b36d069d12bb3bf46a70fd4cda3105d822b0ed2e19c00b69291',
-		'com.squareup:kotlinpoet:1.11.0:kotlinpoet-1.11.0.jar:2887ada1ca03dd83baa2758640d87e840d1907564db0ef88d2289c868a980492',
-		'javax.inject:javax.inject:1:javax.inject-1.jar:91c77044a50c481636c32d916fd89c9118a72195390452c81065080f957de7ff',
-		'junit:junit:4.13.2:junit-4.13.2.jar:8e495b634469d64fb8acfa3495a065cbacc8a0fff55ce1e31007be4c16dc57d3',
-		'net.bytebuddy:byte-buddy:1.9.12:byte-buddy-1.9.12.jar:3688c3d434bebc3edc5516296a2ed0f47b65e451071b4afecad84f902f0efc11',
-		'net.java.dev.jna:jna-platform:5.13.0:jna-platform-5.13.0.jar:474d7b88f6e97009b6ec1d98c3024dd95c23187c65dabfbc35331bcac3d173dd',
-		'net.java.dev.jna:jna:5.13.0:jna-5.13.0.jar:66d4f819a062a51a1d5627bffc23fac55d1677f0e0a1feba144aabdd670a64bb',
-		'net.jcip:jcip-annotations:1.0:jcip-annotations-1.0.jar:be5805392060c71474bf6c9a67a099471274d30b83eef84bfc4e0889a4f1dcc0',
-		'net.ltgt.gradle.incap:incap:0.2:incap-0.2.jar:b625b9806b0f1e4bc7a2e3457119488de3cd57ea20feedd513db070a573a4ffd',
-		'org.apache-extras.beanshell:bsh:2.0b6:bsh-2.0b6.jar:a17955976070c0573235ee662f2794a78082758b61accffce8d3f8aedcd91047',
-		'org.briarproject:jtorctl:0.5:jtorctl-0.5.jar:43f8c7d390169772b9a2c82ab806c8414c136a2a8636c555e22754bb7260793b',
-		'org.briarproject:null-safety:0.1:null-safety-0.1.jar:161760de5e838cb982bafa973df820675d4397098e9a91637a36a306d43ba011',
-		'org.briarproject:onionwrapper-core:0.1.4:onionwrapper-core-0.1.4.jar:d0a48de7198d48eb0182a25d109bc06811484d1da799c6dfa5e2581285880a49',
-		'org.briarproject:onionwrapper-java:0.1.4:onionwrapper-java-0.1.4.jar:3efaa84bee71cc46b5a0b033080eaed323242fae88ea05f7309ee9f999cb3ac3',
-		'org.checkerframework:checker-compat-qual:2.5.5:checker-compat-qual-2.5.5.jar:11d134b245e9cacc474514d2d66b5b8618f8039a1465cdc55bbc0b34e0008b7a',
-		'org.checkerframework:checker-qual:3.41.0:checker-qual-3.41.0.jar:2f9f245bf68e4259d610894f2406dc1f6363dc639302bd566e8272e4f4541172',
-		'org.hamcrest:hamcrest-core:2.1:hamcrest-core-2.1.jar:e09109e54a289d88506b9bfec987ddd199f4217c9464132668351b9a4f00bee9',
-		'org.hamcrest:hamcrest-library:2.1:hamcrest-library-2.1.jar:b7e2b6895b3b679f0e47b6380fda391b225e9b78505db9d8bdde8d3cc8d52a21',
-		'org.hamcrest:hamcrest:2.1:hamcrest-2.1.jar:ba93b2e3a562322ba432f0a1b53addcc55cb188253319a020ed77f824e692050',
-		'org.jetbrains.kotlin:kotlin-reflect:1.6.10:kotlin-reflect-1.6.10.jar:3277ac102ae17aad10a55abec75ff5696c8d109790396434b496e75087854203',
-		'org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.9.0:kotlin-stdlib-jdk7-1.9.0.jar:b7979a7aac94055f0d9f1fd3b47ce5ffe1cb6032a842ba9fbe7186f085289178',
-		'org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.9.0:kotlin-stdlib-jdk8-1.9.0.jar:a59fa24fdf1ffb594baecdbf0fd10010f977cea10236d487fe3464977a7377fa',
-		'org.jetbrains.kotlin:kotlin-stdlib:1.9.20:kotlin-stdlib-1.9.20.jar:28a35bcdff46d864f80f346a617e486284b208d17378c41900dfb1de95a90e6c',
-		'org.jetbrains:annotations:13.0:annotations-13.0.jar:ace2a10dc8e2d5fd34925ecac03e4988b2c0f851650c94b8cef49ba1bd111478',
-		'org.jmock:jmock-imposters:2.12.0:jmock-imposters-2.12.0.jar:3b836269745a137c9b2347e8d7c2104845b126ef04f012d6bfd94f1a7dea7b09',
-		'org.jmock:jmock-junit4:2.12.0:jmock-junit4-2.12.0.jar:3233062fc889637c151a24f1ee086bad04321ab7d8264fef279daff0fa27205b',
-		'org.jmock:jmock-legacy:2.12.0:jmock-legacy-2.12.0.jar:dea3a9cca653d082e2fe7e40232e982fe03a9984c7d67ceff24f3e03fe580dcd',
-		'org.jmock:jmock-testjar:2.12.0:jmock-testjar-2.12.0.jar:efefbcf6cd294d0e29f0c46eb2a3380d4ca4e1763ff719c69e2f2ac62f564a04',
-		'org.jmock:jmock:2.12.0:jmock-2.12.0.jar:266d07314c0cd343c46ff8a55601272de8cf406807caf55e6f313295f83d10be',
-		'org.objenesis:objenesis:3.0.1:objenesis-3.0.1.jar:7a8ff780b9ff48415d7c705f60030b0acaa616e7f823c98eede3b63508d4e984',
-		'org.ow2.asm:asm:7.1:asm-7.1.jar:4ab2fa2b6d2cc9ccb1eaa05ea329c407b47b13ed2915f62f8c4b8cc96258d4de',
+			'cglib:cglib:3.2.8:cglib-3.2.8.jar:3f64de999ecc5595dc84ca8ff0879d8a34c8623f9ef3c517a53ed59023fcb9db',
+			'com.google.code.findbugs:annotations:3.0.1:annotations-3.0.1.jar:6b47ff0a6de0ce17cbedc3abb0828ca5bce3009d53ea47b3723ff023c4742f79',
+			'com.google.code.findbugs:jsr305:3.0.2:jsr305-3.0.2.jar:766ad2a0783f2687962c8ad74ceecc38a28b9f72a2d085ee438b7813e928d0c7',
+			'com.google.dagger:dagger-compiler:2.45:dagger-compiler-2.45.jar:5617dfb994537dba5b41f3744a6dd13ec3cd99789c065e0d5c6fa9f21cf7ca25',
+			'com.google.dagger:dagger-producers:2.45:dagger-producers-2.45.jar:a05abb4c3ccf6bb0f056bdcb5ef973898ecf172952ab5948a824aeea6c86ecaa',
+			'com.google.dagger:dagger-spi:2.45:dagger-spi-2.45.jar:7cd6f0b09d88e64a9c97bc80e544ab8ac8fdee9301754413585a74cf64222b27',
+			'com.google.dagger:dagger:2.45:dagger-2.45.jar:f011cae7d2c0fb7ea17c34e05bc10e768b1081a5892ad019cf1fdb0e125c49c1',
+			'com.google.devtools.ksp:symbol-processing-api:1.7.0-1.0.6:symbol-processing-api-1.7.0-1.0.6.jar:adc29417be5ca9ff42118105fea4e36d9ef44987abfc41432309371a60198941',
+			'com.google.errorprone:error_prone_annotations:2.7.1:error_prone_annotations-2.7.1.jar:cd5257c08a246cf8628817ae71cb822be192ef91f6881ca4a3fcff4f1de1cff3',
+			'com.google.errorprone:javac-shaded:9-dev-r4023-3:javac-shaded-9-dev-r4023-3.jar:65bfccf60986c47fbc17c9ebab0be626afc41741e0a6ec7109e0768817a36f30',
+			'com.google.googlejavaformat:google-java-format:1.5:google-java-format-1.5.jar:aa19ad7850fb85178aa22f2fddb163b84d6ce4d0035872f30d4408195ca1144e',
+			'com.google.guava:failureaccess:1.0.1:failureaccess-1.0.1.jar:a171ee4c734dd2da837e4b16be9df4661afab72a41adaf31eb84dfdaf936ca26',
+			'com.google.guava:guava:31.0.1-jre:guava-31.0.1-jre.jar:d5be94d65e87bd219fb3193ad1517baa55a3b88fc91d21cf735826ab5af087b9',
+			'com.google.guava:listenablefuture:9999.0-empty-to-avoid-conflict-with-guava:listenablefuture-9999.0-empty-to-avoid-conflict-with-guava.jar:b372a037d4230aa57fbeffdef30fd6123f9c0c2db85d0aced00c91b974f33f99',
+			'com.google.j2objc:j2objc-annotations:1.3:j2objc-annotations-1.3.jar:21af30c92267bd6122c0e0b4d20cccb6641a37eaf956c6540ec471d584e64a7b',
+			'com.squareup:javapoet:1.13.0:javapoet-1.13.0.jar:4c7517e848a71b36d069d12bb3bf46a70fd4cda3105d822b0ed2e19c00b69291',
+			'com.squareup:kotlinpoet:1.11.0:kotlinpoet-1.11.0.jar:2887ada1ca03dd83baa2758640d87e840d1907564db0ef88d2289c868a980492',
+			'javax.inject:javax.inject:1:javax.inject-1.jar:91c77044a50c481636c32d916fd89c9118a72195390452c81065080f957de7ff',
+			'junit:junit:4.13.2:junit-4.13.2.jar:8e495b634469d64fb8acfa3495a065cbacc8a0fff55ce1e31007be4c16dc57d3',
+			'net.bytebuddy:byte-buddy:1.9.12:byte-buddy-1.9.12.jar:3688c3d434bebc3edc5516296a2ed0f47b65e451071b4afecad84f902f0efc11',
+			'net.java.dev.jna:jna-platform:5.13.0:jna-platform-5.13.0.jar:474d7b88f6e97009b6ec1d98c3024dd95c23187c65dabfbc35331bcac3d173dd',
+			'net.java.dev.jna:jna:5.13.0:jna-5.13.0.jar:66d4f819a062a51a1d5627bffc23fac55d1677f0e0a1feba144aabdd670a64bb',
+			'net.jcip:jcip-annotations:1.0:jcip-annotations-1.0.jar:be5805392060c71474bf6c9a67a099471274d30b83eef84bfc4e0889a4f1dcc0',
+			'net.ltgt.gradle.incap:incap:0.2:incap-0.2.jar:b625b9806b0f1e4bc7a2e3457119488de3cd57ea20feedd513db070a573a4ffd',
+			'org.apache-extras.beanshell:bsh:2.0b6:bsh-2.0b6.jar:a17955976070c0573235ee662f2794a78082758b61accffce8d3f8aedcd91047',
+			'org.briarproject:jtorctl:0.5:jtorctl-0.5.jar:43f8c7d390169772b9a2c82ab806c8414c136a2a8636c555e22754bb7260793b',
+			'org.briarproject:null-safety:0.1:null-safety-0.1.jar:161760de5e838cb982bafa973df820675d4397098e9a91637a36a306d43ba011',
+			'org.briarproject:onionwrapper-core:0.0.5:onionwrapper-core-0.0.5.jar:9071678323535cb3dfe0f3add96066037db43ea024333eba0117c759bcbd8d63',
+			'org.briarproject:onionwrapper-java:0.0.5:onionwrapper-java-0.0.5.jar:19503ce1dd661f7119eee8ccd2f22b667a28d746c862dc5bb3d2e476db47e27d',
+			'org.checkerframework:checker-compat-qual:2.5.5:checker-compat-qual-2.5.5.jar:11d134b245e9cacc474514d2d66b5b8618f8039a1465cdc55bbc0b34e0008b7a',
+			'org.checkerframework:checker-qual:3.12.0:checker-qual-3.12.0.jar:ff10785ac2a357ec5de9c293cb982a2cbb605c0309ea4cc1cb9b9bc6dbe7f3cb',
+			'org.hamcrest:hamcrest-core:2.1:hamcrest-core-2.1.jar:e09109e54a289d88506b9bfec987ddd199f4217c9464132668351b9a4f00bee9',
+			'org.hamcrest:hamcrest-library:2.1:hamcrest-library-2.1.jar:b7e2b6895b3b679f0e47b6380fda391b225e9b78505db9d8bdde8d3cc8d52a21',
+			'org.hamcrest:hamcrest:2.1:hamcrest-2.1.jar:ba93b2e3a562322ba432f0a1b53addcc55cb188253319a020ed77f824e692050',
+			'org.jetbrains.kotlin:kotlin-reflect:1.6.10:kotlin-reflect-1.6.10.jar:3277ac102ae17aad10a55abec75ff5696c8d109790396434b496e75087854203',
+			'org.jetbrains.kotlin:kotlin-stdlib-common:1.7.0:kotlin-stdlib-common-1.7.0.jar:59c6ff64fe9a6604afce03e8aaa75f83586c6030ac71fb0b34ee7cdefed3618f',
+			'org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.7.0:kotlin-stdlib-jdk7-1.7.0.jar:07e91be9b2ca20672d2bdb7e181b766e73453a2da13492b5ddaee8fa47aea239',
+			'org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.7.0:kotlin-stdlib-jdk8-1.7.0.jar:cf058e11db1dfc9944680c8c61b95ac689aaaa8a3eb30bced028100f038f030b',
+			'org.jetbrains.kotlin:kotlin-stdlib:1.7.0:kotlin-stdlib-1.7.0.jar:aa88e9625577957f3249a46cb6e166ee09b369e600f7a11d148d16b0a6d87f05',
+			'org.jetbrains.kotlinx:kotlinx-metadata-jvm:0.5.0:kotlinx-metadata-jvm-0.5.0.jar:ca063a96639b08b9eaa0de4d65e899480740a6efbe28ab9a8681a2ced03055a4',
+			'org.jetbrains:annotations:13.0:annotations-13.0.jar:ace2a10dc8e2d5fd34925ecac03e4988b2c0f851650c94b8cef49ba1bd111478',
+			'org.jmock:jmock-imposters:2.12.0:jmock-imposters-2.12.0.jar:3b836269745a137c9b2347e8d7c2104845b126ef04f012d6bfd94f1a7dea7b09',
+			'org.jmock:jmock-junit4:2.12.0:jmock-junit4-2.12.0.jar:3233062fc889637c151a24f1ee086bad04321ab7d8264fef279daff0fa27205b',
+			'org.jmock:jmock-legacy:2.12.0:jmock-legacy-2.12.0.jar:dea3a9cca653d082e2fe7e40232e982fe03a9984c7d67ceff24f3e03fe580dcd',
+			'org.jmock:jmock-testjar:2.12.0:jmock-testjar-2.12.0.jar:efefbcf6cd294d0e29f0c46eb2a3380d4ca4e1763ff719c69e2f2ac62f564a04',
+			'org.jmock:jmock:2.12.0:jmock-2.12.0.jar:266d07314c0cd343c46ff8a55601272de8cf406807caf55e6f313295f83d10be',
+			'org.objenesis:objenesis:3.0.1:objenesis-3.0.1.jar:7a8ff780b9ff48415d7c705f60030b0acaa616e7f823c98eede3b63508d4e984',
+			'org.ow2.asm:asm:7.1:asm-7.1.jar:4ab2fa2b6d2cc9ccb1eaa05ea329c407b47b13ed2915f62f8c4b8cc96258d4de',
 	]
 }

briar-android/.tx/config

@@ -1,6 +1,6 @@
 [main]
 host     = https://www.transifex.com
-lang_map = es_CU: es-rCU, pt_BR: pt-rBR, pt_PT: pt-rPT, nb_NO: nb, zh-Hans: zh-rCN, zh-Hant: zh-rTW
+lang_map = pt_BR: pt-rBR, nb_NO: nb, zh-Hans: zh-rCN, zh-Hant: zh-rTW
 
 [o:otf:p:briar:r:google-play-full-description]
 file_filter  = fastlane/metadata/android/<lang>/full_description.txt

briar-android/build.gradle

@@ -16,29 +16,36 @@ def getStdout = { command, defaultValue ->
 }
 
 android {
-	compileSdk 35
-	buildToolsVersion '35.0.0'
+	compileSdkVersion 33
+	buildToolsVersion '33.0.0'
+
 	packagingOptions {
+		doNotStrip '**/*.so'
 		jniLibs {
-			keepDebugSymbols += ['**/*.so']
+			// Unpack native libs from the APK rather than using them in-place. We package the
+			// Tor binaries as native libs and need them to be unpacked so we can execute them
+			useLegacyPackaging = true
 		}
 	}
 
-
 	defaultConfig {
+		// FIXME: sqlite-jdbc-crypt uses __register_atfork which is only available on API >= 23.
+		//  We might be able to solve this by recompiling (or asking upstream to recompile)
 		minSdkVersion 21
-		targetSdkVersion 35
-		versionCode 10516
-		versionName "1.5.16"
+		targetSdkVersion 33
+		versionCode 10506
+		versionName "1.5.6"
 		applicationId "org.briarproject.briar.android"
-		buildConfigField "String", "TorVersion", "\"$tor_version\""
 
 		vectorDrawables.useSupportLibrary = true
+
+		buildConfigField "String", "TorVersion", "\"$tor_version\""
 		buildConfigField "String", "GitHash",
-			"\"${getStdout(['git', 'rev-parse', '--short=7', 'HEAD'], 'No commit hash')}\""
+				"\"${getStdout(['git', 'rev-parse', '--short=7', 'HEAD'], 'No commit hash')}\""
 		def now = (long) (System.currentTimeMillis() / 1000)
 		buildConfigField "Long", "BuildTimestamp",
-			"${getStdout(['git', 'log', '-n', '1', '--format=%ct'], now)}000L"
+				"${getStdout(['git', 'log', '-n', '1', '--format=%ct'], now)}000L"
+
 		testInstrumentationRunner 'org.briarproject.briar.android.BriarTestRunner'
 		testInstrumentationRunnerArguments disableAnalytics: 'true'
 	}
@@ -78,8 +85,9 @@ android {
 	}
 
 	compileOptions {
-		sourceCompatibility JavaVersion.VERSION_17
-		targetCompatibility JavaVersion.VERSION_17
+		sourceCompatibility JavaVersion.VERSION_1_8
+		targetCompatibility JavaVersion.VERSION_1_8
+		coreLibraryDesugaringEnabled true
 	}
 
 	testOptions {
@@ -88,13 +96,21 @@ android {
 			includeAndroidResources = true
 		}
 	}
-	namespace 'org.briarproject.briar'
-	lint {
-		warning 'MissingTranslation', 'MissingDefaultResource', 'ImpliedQuantity', 'ExtraTranslation', 'InvalidPackage'
-	}
 
+	lintOptions {
+		warning 'MissingTranslation'
+		warning 'MissingDefaultResource'
+		warning 'ImpliedQuantity'
+		warning 'ExtraTranslation'
+		// FIXME
+		warning 'InvalidPackage'
+	}
 }
 
+// Workaround for https://github.com/gradle/gradle/issues/20330 to make gradle-witness work
+// with Android Gradle Plugin 7.4
+project.evaluationDependsOn(project.getRootProject().findProject("bramble-android").getPath())
+
 dependencies {
 	// In theory this dependency shouldn't be needed, but without it Android Studio's linter will
 	// complain about unresolved symbols for bramble-api test classes in briar-android tests,
@@ -106,15 +122,16 @@ dependencies {
 	implementation project(':bramble-android')
 	implementation project(':briar-core')
 
-	// newer versions of the libraries below require compileSdk 34
-	implementation 'androidx.fragment:fragment:1.6.2'
-	implementation 'androidx.preference:preference:1.2.1'
-	implementation 'androidx.exifinterface:exifinterface:1.3.7'
-	implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.6.2'
-	implementation 'androidx.lifecycle:lifecycle-livedata:2.6.2'
+	implementation 'androidx.fragment:fragment:1.5.5'
+	implementation 'androidx.preference:preference:1.2.0'
+	implementation 'androidx.exifinterface:exifinterface:1.3.6'
+	implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.5.1'
+	implementation 'androidx.lifecycle:lifecycle-livedata:2.5.1'
 
 	implementation 'androidx.constraintlayout:constraintlayout:2.1.4'
-	implementation 'com.google.android.material:material:1.9.0'
+	// check https://github.com/material-components/material-components-android/issues/3191
+	// before upgrading material library
+	implementation 'com.google.android.material:material:1.7.0'
 	implementation 'androidx.recyclerview:recyclerview-selection:1.1.0'
 
 	// force kotlin standard lib to latest version to prevent jetifier issues
@@ -128,7 +145,7 @@ dependencies {
 	implementation 'com.vanniktech:emoji-google:0.9.0' // newer versions are more work to adapt
 	implementation 'com.github.kobakei:MaterialFabSpeedDial:1.2.1'
 	implementation 'com.github.chrisbanes:PhotoView:2.3.0'
-	def glideVersion = '4.16.0'
+	def glideVersion = '4.14.2'
 	implementation("com.github.bumptech.glide:glide:$glideVersion") {
 		exclude group: 'com.android.support'
 		exclude module: 'disklrucache' // when there's no disk cache, we can't accidentally use it
@@ -140,6 +157,8 @@ dependencies {
 
 	compileOnly 'javax.annotation:jsr250-api:1.0'
 
+	coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:2.0.3'
+
 	testImplementation project(path: ':bramble-api', configuration: 'testOutput')
 	testImplementation project(path: ':bramble-core', configuration: 'testOutput')
 
@@ -200,7 +219,7 @@ task verifyTranslations {
 		}
 		if (translations.size() != 0)
 			throw new GradleException("Translations\n" + translations.join("\n")
-				+ "\nhave no matching value folder")
+					+ "\nhave no matching value folder")
 
 		// Some devices use iw instead of he for hebrew
 		def hebrew_legacy = project.file("src/main/res/values-iw")
@@ -216,8 +235,6 @@ task verifyTranslations {
 	}
 }
 
-// Force evaluation of bramble-android before briar-android
-project.evaluationDependsOn(project.getRootProject().findProject("bramble-android").getPath())
 project.afterEvaluate {
 	preBuild.dependsOn.add(verifyTranslations)
 }

briar-android/proguard-rules.txt

@@ -4,7 +4,6 @@
 -keepattributes SourceFile, LineNumberTable, *Annotation*, Signature, InnerClasses, EnclosingMethod
 
 -keep,includedescriptorclasses class org.briarproject.briar.android.**,org.briarproject.briar.api.android.** { *; }
--keep class org.briarproject.bramble.system.UnixSecureRandomSpi { *; }
 
 # QR codes
 -keep class com.google.zxing.Result
@@ -26,8 +25,9 @@
 -dontnote com.android.org.conscrypt.SSLParametersImpl
 -dontnote org.apache.harmony.xnet.provider.jsse.SSLParametersImpl
 -dontnote sun.security.ssl.SSLContextImpl
--dontwarn org.conscrypt.OpenSSLProvider
--dontwarn org.conscrypt.Conscrypt
+-dontwarn org.bouncycastle.jsse.**
+-dontwarn org.conscrypt.**
+-dontwarn org.openjsse.**
 
 # HTML sanitiser
 -keep class org.jsoup.safety.Whitelist
@@ -43,6 +43,3 @@
 
 # Dependency injection annotations, needed for UI tests on older API levels
 -keep class javax.inject.**
-
-# H2 database: keep H2 MVStore classes
--keep class org.h2.mvstore.db.MVTableEngine

briar-android/src/main/AndroidManifest.xml

@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-	xmlns:tools="http://schemas.android.com/tools">
+	xmlns:tools="http://schemas.android.com/tools"
+	package="org.briarproject.briar">
 
 	<uses-feature
 		android:name="android.hardware.bluetooth"
@@ -32,17 +33,11 @@
 		tools:ignore="ScopedStorage" />
 	<uses-permission android:name="android.permission.POST_NOTIFICATIONS" />
 
-	<uses-permission-sdk-23
-		android:name="android.permission.ACCESS_FINE_LOCATION"
+	<uses-permission-sdk-23 android:name="android.permission.ACCESS_FINE_LOCATION"
 		android:maxSdkVersion="32" />
 	<uses-permission-sdk-23 android:name="android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS" />
 	<uses-permission-sdk-23 android:name="android.permission.USE_BIOMETRIC" />
 	<uses-permission-sdk-23 android:name="android.permission.FOREGROUND_SERVICE" />
-	<uses-permission-sdk-23 android:name="android.permission.FOREGROUND_SERVICE_CONNECTED_DEVICE" />
-
-	<uses-permission
-		android:name="android.permission.HIDE_OVERLAY_WINDOWS"
-		tools:targetApi="31" />
 
 	<application
 		android:name="org.briarproject.briar.android.BriarApplicationImpl"
@@ -68,8 +63,7 @@
 
 		<service
 			android:name="org.briarproject.briar.android.BriarService"
-			android:exported="false"
-			android:foregroundServiceType="connectedDevice">
+			android:exported="false">
 			<intent-filter>
 				<action android:name="org.briarproject.briar.android.BriarService" />
 			</intent-filter>
@@ -110,12 +104,12 @@
 		<activity
 			android:name="org.briarproject.briar.android.login.StartupActivity"
 			android:exported="false"
-			android:theme="@style/BriarTheme.NoActionBar" />
+			android:label="@string/app_name" />
 
 		<activity
 			android:name="org.briarproject.briar.android.account.SetupActivity"
 			android:exported="false"
-			android:theme="@style/BriarTheme.NoActionBar" />
+			android:label="@string/setup_title" />
 
 		<activity
 			android:name="org.briarproject.briar.android.splash.SplashScreenActivity"

briar-android/src/main/java/org/briarproject/bramble/account/BriarAccountManager.java

@@ -27,7 +27,7 @@ class BriarAccountManager extends AndroidAccountManager {
 			super.deleteAccount();
 			Localizer.reinitialize();
 			UiUtils.setTheme(appContext,
-					appContext.getString(R.string.pref_theme_system_value));
+					appContext.getString(R.string.pref_theme_light_value));
 		}
 	}
 }

briar-android/src/main/java/org/briarproject/briar/android/AppModule.java

@@ -150,7 +150,8 @@ public class AppModule {
 		//FIXME: StrictMode
 		StrictMode.ThreadPolicy tp = StrictMode.allowThreadDiskReads();
 		StrictMode.allowThreadDiskWrites();
-		File dbDir = app.getApplicationContext().getDir("db", MODE_PRIVATE);
+		File dbDir = app.getApplicationContext().getDir("db_sqlite",
+				MODE_PRIVATE);
 		File keyDir = app.getApplicationContext().getDir("key", MODE_PRIVATE);
 		StrictMode.setThreadPolicy(tp);
 		KeyStrengthener keyStrengthener = SDK_INT >= 23

briar-android/src/main/java/org/briarproject/briar/android/BriarApplicationImpl.java

@@ -33,7 +33,6 @@ import static java.util.logging.Level.FINE;
 import static java.util.logging.Level.INFO;
 import static java.util.logging.Logger.getLogger;
 import static org.briarproject.briar.android.TestingConstants.IS_DEBUG_BUILD;
-import static org.briarproject.briar.android.settings.DisplayFragment.PREF_THEME;
 
 public class BriarApplicationImpl extends Application
 		implements BriarApplication {
@@ -110,11 +109,11 @@ public class BriarApplicationImpl extends Application
 	}
 
 	private void setTheme(Context ctx, SharedPreferences prefs) {
-		String theme = prefs.getString(PREF_THEME, null);
+		String theme = prefs.getString("pref_key_theme", null);
 		if (theme == null) {
 			// set default value
-			theme = getString(R.string.pref_theme_system_value);
-			prefs.edit().putString(PREF_THEME, theme).apply();
+			theme = getString(R.string.pref_theme_light_value);
+			prefs.edit().putString("pref_key_theme", theme).apply();
 		}
 		// set theme
 		UiUtils.setTheme(ctx, theme);

briar-android/src/main/java/org/briarproject/briar/android/BriarService.java

@@ -22,7 +22,6 @@ import org.briarproject.bramble.api.lifecycle.LifecycleManager;
 import org.briarproject.bramble.api.lifecycle.LifecycleManager.StartResult;
 import org.briarproject.bramble.api.system.AndroidExecutor;
 import org.briarproject.bramble.api.system.Clock;
-import org.briarproject.bramble.util.AndroidUtils;
 import org.briarproject.briar.R;
 import org.briarproject.briar.android.logout.HideUiActivity;
 import org.briarproject.briar.api.android.AndroidNotificationManager;
@@ -175,8 +174,7 @@ public class BriarService extends Service {
 			filter.addAction(ACTION_SHUTDOWN);
 			filter.addAction("android.intent.action.QUICKBOOT_POWEROFF");
 			filter.addAction("com.htc.intent.action.QUICKBOOT_POWEROFF");
-			AndroidUtils.registerReceiver(getApplicationContext(), receiver,
-					filter, false);
+			registerReceiver(receiver, filter);
 		}, "LifecycleStartup");
 	}
 
@@ -217,14 +215,17 @@ public class BriarService extends Service {
 
 	@Override
 	public void onDestroy() {
-		super.onDestroy();
-		LOG.info("Destroyed");
-		// Stop the lifecycle, if not already stopped
-		shutdown(false);
-		stopForeground(true);
-		if (receiver != null) {
-			getApplicationContext().unregisterReceiver(receiver);
-		}
+		// Hold a wake lock during shutdown
+		wakeLockManager.runWakefully(() -> {
+			super.onDestroy();
+			LOG.info("Destroyed");
+			stopForeground(true);
+			if (receiver != null) unregisterReceiver(receiver);
+			// Stop the services in a background thread
+			wakeLockManager.executeWakefully(() -> {
+				if (started) lifecycleManager.stopServices();
+			}, "LifecycleShutdown");
+		}, "LifecycleShutdown");
 	}
 
 	@Override
@@ -294,8 +295,8 @@ public class BriarService extends Service {
 	private void shutdownFromBackground() {
 		// Hold a wake lock during shutdown
 		wakeLockManager.runWakefully(() -> {
-			// Begin lifecycle shutdown
-			shutdown(true);
+			// Stop the service
+			stopSelf();
 			// Hide the UI
 			hideUi();
 			// Wait for shutdown to complete, then exit
@@ -330,18 +331,8 @@ public class BriarService extends Service {
 	/**
 	 * Starts the shutdown process.
 	 */
-	public void shutdown(boolean stopAndroidService) {
-		// Hold a wake lock during shutdown
-		wakeLockManager.runWakefully(() -> {
-			// Stop the lifecycle services in a background thread,
-			// then stop this Android service if needed
-			wakeLockManager.executeWakefully(() -> {
-				if (started) lifecycleManager.stopServices();
-				if (stopAndroidService) {
-					androidExecutor.runOnUiThread(() -> stopSelf());
-				}
-			}, "LifecycleShutdown");
-		}, "LifecycleShutdown");
+	public void shutdown() {
+		stopSelf(); // This will call onDestroy()
 	}
 
 	public class BriarBinder extends Binder {

briar-android/src/main/java/org/briarproject/briar/android/DozeWatchdogImpl.java

@@ -21,7 +21,6 @@ import static android.os.PowerManager.ACTION_DEVICE_LIGHT_IDLE_MODE_CHANGED;
 import static android.os.PowerManager.ACTION_LOW_POWER_STANDBY_ENABLED_CHANGED;
 import static java.util.logging.Level.WARNING;
 import static java.util.logging.Logger.getLogger;
-import static org.briarproject.bramble.util.AndroidUtils.registerReceiver;
 
 class DozeWatchdogImpl implements DozeWatchdog, Service {
 
@@ -49,7 +48,7 @@ class DozeWatchdogImpl implements DozeWatchdog, Service {
 			filter.addAction(ACTION_DEVICE_LIGHT_IDLE_MODE_CHANGED);
 			filter.addAction(ACTION_LOW_POWER_STANDBY_ENABLED_CHANGED);
 		}
-		registerReceiver(appContext, receiver, filter, false);
+		appContext.registerReceiver(receiver, filter);
 	}
 
 	@Override

briar-android/src/main/java/org/briarproject/briar/android/ScreenFilterMonitorImpl.java

@@ -49,7 +49,6 @@ import static android.content.pm.PackageManager.GET_PERMISSIONS;
 import static android.content.pm.PackageManager.GET_SIGNATURES;
 import static android.os.Build.VERSION.SDK_INT;
 import static java.util.logging.Level.WARNING;
-import static org.briarproject.bramble.util.AndroidUtils.registerReceiver;
 import static org.briarproject.bramble.util.LogUtils.logException;
 
 @NotNullByDefault
@@ -208,7 +207,7 @@ class ScreenFilterMonitorImpl implements ScreenFilterMonitor, Service {
 			filter.addAction(ACTION_PACKAGE_REPLACED);
 			filter.addDataScheme("package");
 			receiver = new PackageBroadcastReceiver();
-			registerReceiver(app, receiver, filter, false);
+			app.registerReceiver(receiver, filter);
 			cachedApps = null;
 		});
 	}

briar-android/src/main/java/org/briarproject/briar/android/account/AuthorNameFragment.java

@@ -18,9 +18,7 @@ import javax.annotation.Nullable;
 
 import static org.briarproject.bramble.api.identity.AuthorConstants.MAX_AUTHOR_NAME_LENGTH;
 import static org.briarproject.bramble.util.StringUtils.toUtf8;
-import static org.briarproject.briar.android.util.UiUtils.hideViewOnSmallScreen;
 import static org.briarproject.briar.android.util.UiUtils.setError;
-import static org.briarproject.briar.android.util.UiUtils.showOnboardingDialog;
 
 @MethodsNotNullByDefault
 @ParametersNotNullByDefault
@@ -40,27 +38,19 @@ public class AuthorNameFragment extends SetupFragment {
 	public View onCreateView(LayoutInflater inflater,
 			@Nullable ViewGroup container,
 			@Nullable Bundle savedInstanceState) {
+		requireActivity().setTitle(getString(R.string.setup_title));
 		View v = inflater.inflate(R.layout.fragment_setup_author_name,
 				container, false);
 		authorNameWrapper = v.findViewById(R.id.nickname_entry_wrapper);
 		authorNameInput = v.findViewById(R.id.nickname_entry);
-		Button infoButton = v.findViewById(R.id.info_button);
 		nextButton = v.findViewById(R.id.next);
 
 		authorNameInput.addTextChangedListener(this);
-		infoButton.setOnClickListener(view ->
-				showOnboardingDialog(requireContext(), getHelpText()));
 		nextButton.setOnClickListener(this);
 
 		return v;
 	}
 
-	@Override
-	public void onStart() {
-		super.onStart();
-		hideViewOnSmallScreen(requireView().findViewById(R.id.logo));
-	}
-
 	@Override
 	public String getUniqueTag() {
 		return TAG;

briar-android/src/main/java/org/briarproject/briar/android/account/DozeFragment.java

@@ -23,7 +23,6 @@ import static android.view.View.VISIBLE;
 import static android.widget.Toast.LENGTH_LONG;
 import static org.briarproject.android.dontkillmelib.DozeUtils.getDozeWhitelistingIntent;
 import static org.briarproject.briar.android.activity.RequestCodes.REQUEST_DOZE_WHITELISTING;
-import static org.briarproject.briar.android.util.UiUtils.hideViewOnSmallScreen;
 import static org.briarproject.briar.android.util.UiUtils.showOnboardingDialog;
 
 @MethodsNotNullByDefault
@@ -80,12 +79,6 @@ public class DozeFragment extends SetupFragment
 		return v;
 	}
 
-	@Override
-	public void onStart() {
-		super.onStart();
-		hideViewOnSmallScreen(requireView().findViewById(R.id.logo));
-	}
-
 	@Override
 	public String getUniqueTag() {
 		return TAG;

briar-android/src/main/java/org/briarproject/briar/android/account/SetPasswordFragment.java

@@ -28,12 +28,10 @@ import static android.content.pm.PackageManager.PERMISSION_GRANTED;
 import static android.os.Build.VERSION.SDK_INT;
 import static android.view.View.INVISIBLE;
 import static android.view.View.VISIBLE;
+import static android.view.inputmethod.EditorInfo.IME_ACTION_DONE;
 import static androidx.core.content.ContextCompat.checkSelfPermission;
 import static org.briarproject.bramble.api.crypto.PasswordStrengthEstimator.QUITE_WEAK;
-import static org.briarproject.bramble.api.crypto.PasswordStrengthEstimator.STRONG;
-import static org.briarproject.briar.android.util.UiUtils.hideViewOnSmallScreen;
 import static org.briarproject.briar.android.util.UiUtils.setError;
-import static org.briarproject.briar.android.util.UiUtils.showOnboardingDialog;
 
 @MethodsNotNullByDefault
 @ParametersNotNullByDefault
@@ -59,6 +57,7 @@ public class SetPasswordFragment extends SetupFragment {
 	public View onCreateView(LayoutInflater inflater,
 			@Nullable ViewGroup container,
 			@Nullable Bundle savedInstanceState) {
+		requireActivity().setTitle(getString(R.string.setup_password_intro));
 		View v = inflater.inflate(R.layout.fragment_setup_password, container,
 				false);
 
@@ -68,18 +67,17 @@ public class SetPasswordFragment extends SetupFragment {
 		passwordConfirmationWrapper =
 				v.findViewById(R.id.password_confirm_wrapper);
 		passwordConfirmation = v.findViewById(R.id.password_confirm);
-		Button infoButton = v.findViewById(R.id.info_button);
 		nextButton = v.findViewById(R.id.next);
 		ProgressBar progressBar = v.findViewById(R.id.progress);
 
 		passwordEntry.addTextChangedListener(this);
 		passwordConfirmation.addTextChangedListener(this);
-		infoButton.setOnClickListener(view ->
-				showOnboardingDialog(requireContext(), getHelpText()));
 		nextButton.setOnClickListener(this);
 
 		if (!viewModel.needToShowDozeFragment()) {
 			nextButton.setText(R.string.create_account_button);
+			int options = passwordConfirmation.getImeOptions();
+			passwordConfirmation.setImeOptions(options | IME_ACTION_DONE);
 		}
 
 		viewModel.getIsCreatingAccount()
@@ -96,12 +94,6 @@ public class SetPasswordFragment extends SetupFragment {
 		return v;
 	}
 
-	@Override
-	public void onStart() {
-		super.onStart();
-		hideViewOnSmallScreen(requireView().findViewById(R.id.logo));
-	}
-
 	@Override
 	public String getUniqueTag() {
 		return TAG;
@@ -118,27 +110,17 @@ public class SetPasswordFragment extends SetupFragment {
 		String password2 = passwordConfirmation.getText().toString();
 		boolean passwordsMatch = password1.equals(password2);
 
-		strengthMeter.setVisibility(!password1.isEmpty() ? VISIBLE : INVISIBLE);
+		strengthMeter
+				.setVisibility(password1.length() > 0 ? VISIBLE : INVISIBLE);
 		float strength = viewModel.estimatePasswordStrength(password1);
 		strengthMeter.setStrength(strength);
 		boolean strongEnough = strength >= QUITE_WEAK;
 
-		if (!password1.isEmpty()) {
-			if (strength >= STRONG) {
-				passwordEntryWrapper.setHelperText(
-						getString(R.string.password_strong));
-			} else if (strength >= QUITE_WEAK) {
-				passwordEntryWrapper.setHelperText(
-						getString(R.string.password_quite_strong));
-			} else {
-				passwordEntryWrapper.setHelperTextEnabled(false);
-			}
-		}
 		setError(passwordEntryWrapper, getString(R.string.password_too_weak),
-				!password1.isEmpty() && !strongEnough);
+				password1.length() > 0 && !strongEnough);
 		setError(passwordConfirmationWrapper,
 				getString(R.string.passwords_do_not_match),
-				!password2.isEmpty() && !passwordsMatch);
+				password2.length() > 0 && !passwordsMatch);
 
 		boolean enabled = passwordsMatch && strongEnough;
 		nextButton.setEnabled(enabled);

briar-android/src/main/java/org/briarproject/briar/android/account/UnlockActivity.java

@@ -1,6 +1,5 @@
 package org.briarproject.briar.android.account;
 
-import android.annotation.SuppressLint;
 import android.app.KeyguardManager;
 import android.content.ActivityNotFoundException;
 import android.content.Intent;
@@ -114,7 +113,6 @@ public class UnlockActivity extends BaseActivity {
 	}
 
 	@Override
-	@SuppressLint("MissingSuperCall")
 	public void onBackPressed() {
 		moveTaskToBack(true);
 	}

briar-android/src/main/java/org/briarproject/briar/android/activity/BaseActivity.java

@@ -101,8 +101,6 @@ public abstract class BaseActivity extends AppCompatActivity
 		//          unlock screen is shown.
 		if (PREVENT_SCREENSHOTS) getWindow().addFlags(FLAG_SECURE);
 
-		if (SDK_INT >= 31) getWindow().setHideOverlayWindows(true);
-
 		for (ActivityLifecycleController alc : lifecycleControllers) {
 			alc.onActivityCreate(this);
 		}

briar-android/src/main/java/org/briarproject/briar/android/activity/BriarActivity.java

@@ -7,8 +7,6 @@ import android.view.Window;
 import android.widget.CheckBox;
 import android.widget.Toast;
 
-import com.google.android.material.dialog.MaterialAlertDialogBuilder;
-
 import org.briarproject.android.dontkillmelib.wakelock.AndroidWakeLockManager;
 import org.briarproject.bramble.api.system.Wakeful;
 import org.briarproject.briar.R;
@@ -179,8 +177,8 @@ public abstract class BriarActivity extends BaseActivity {
 	}
 
 	protected void showDozeDialog(@StringRes int message) {
-		MaterialAlertDialogBuilder b =
-				new MaterialAlertDialogBuilder(this, R.style.BriarDialogTheme);
+		AlertDialog.Builder b =
+				new AlertDialog.Builder(this, R.style.BriarDialogTheme);
 		b.setMessage(message);
 		b.setView(R.layout.checkbox);
 		b.setPositiveButton(R.string.fix,

briar-android/src/main/java/org/briarproject/briar/android/blog/BlogFragment.java

@@ -10,8 +10,6 @@ import android.view.View;
 import android.view.ViewGroup;
 import android.widget.Toast;
 
-import com.google.android.material.dialog.MaterialAlertDialogBuilder;
-
 import org.briarproject.bramble.api.sync.GroupId;
 import org.briarproject.briar.R;
 import org.briarproject.briar.android.activity.ActivityComponent;
@@ -29,6 +27,7 @@ import javax.inject.Inject;
 
 import androidx.annotation.Nullable;
 import androidx.annotation.UiThread;
+import androidx.appcompat.app.AlertDialog;
 import androidx.lifecycle.ViewModelProvider;
 import androidx.recyclerview.widget.LinearLayoutManager;
 import androidx.recyclerview.widget.RecyclerView.LayoutManager;
@@ -221,8 +220,8 @@ public class BlogFragment extends BaseFragment
 	}
 
 	private void showDeleteDialog() {
-		MaterialAlertDialogBuilder builder = new MaterialAlertDialogBuilder(
-				requireContext(), R.style.BriarDialogTheme);
+		AlertDialog.Builder builder = new AlertDialog.Builder(requireContext(),
+				R.style.BriarDialogTheme);
 		builder.setTitle(getString(R.string.blogs_remove_blog));
 		builder.setMessage(
 				getString(R.string.blogs_remove_blog_dialog_message));

briar-android/src/main/java/org/briarproject/briar/android/blog/RssFeedDeleteFeedDialogFragment.java

@@ -4,8 +4,6 @@ import android.app.Dialog;
 import android.content.Context;
 import android.os.Bundle;
 
-import com.google.android.material.dialog.MaterialAlertDialogBuilder;
-
 import org.briarproject.bramble.api.sync.GroupId;
 import org.briarproject.briar.R;
 import org.briarproject.briar.android.activity.BaseActivity;
@@ -15,6 +13,7 @@ import org.briarproject.nullsafety.ParametersNotNullByDefault;
 import javax.inject.Inject;
 
 import androidx.annotation.Nullable;
+import androidx.appcompat.app.AlertDialog;
 import androidx.fragment.app.DialogFragment;
 import androidx.lifecycle.ViewModelProvider;
 
@@ -52,8 +51,8 @@ public class RssFeedDeleteFeedDialogFragment extends DialogFragment {
 	public Dialog onCreateDialog(@Nullable Bundle savedInstanceState) {
 		GroupId groupId = new GroupId(
 				requireNonNull(requireArguments().getByteArray(GROUP_ID)));
-		MaterialAlertDialogBuilder builder = new MaterialAlertDialogBuilder(
-				requireActivity(), R.style.BriarDialogTheme);
+		AlertDialog.Builder builder = new AlertDialog.Builder(requireActivity(),
+				R.style.BriarDialogTheme);
 		builder.setTitle(getString(R.string.blogs_rss_remove_feed));
 		builder.setMessage(
 				getString(R.string.blogs_rss_remove_feed_dialog_message));

briar-android/src/main/java/org/briarproject/briar/android/blog/RssFeedImportFailedDialogFragment.java

@@ -4,8 +4,6 @@ import android.app.Dialog;
 import android.content.Context;
 import android.os.Bundle;
 
-import com.google.android.material.dialog.MaterialAlertDialogBuilder;
-
 import org.briarproject.briar.R;
 import org.briarproject.briar.android.activity.BaseActivity;
 import org.briarproject.nullsafety.MethodsNotNullByDefault;
@@ -14,6 +12,7 @@ import org.briarproject.nullsafety.ParametersNotNullByDefault;
 import javax.inject.Inject;
 
 import androidx.annotation.Nullable;
+import androidx.appcompat.app.AlertDialog;
 import androidx.fragment.app.DialogFragment;
 import androidx.lifecycle.ViewModelProvider;
 
@@ -48,8 +47,8 @@ public class RssFeedImportFailedDialogFragment extends DialogFragment {
 
 	@Override
 	public Dialog onCreateDialog(@Nullable Bundle savedInstanceState) {
-		MaterialAlertDialogBuilder builder =
-				new MaterialAlertDialogBuilder(requireActivity(),
+		AlertDialog.Builder builder =
+				new AlertDialog.Builder(requireActivity(),
 						R.style.BriarDialogTheme);
 		builder.setMessage(R.string.blogs_rss_feeds_import_error);
 		builder.setNegativeButton(R.string.cancel, null);

briar-android/src/main/java/org/briarproject/briar/android/blog/WriteBlogPostActivity.java

@@ -2,12 +2,9 @@ package org.briarproject.briar.android.blog;
 
 import android.content.Intent;
 import android.os.Bundle;
-import android.text.SpannableStringBuilder;
 import android.view.MenuItem;
 import android.widget.ProgressBar;
 
-import com.google.android.material.snackbar.Snackbar;
-
 import org.briarproject.bramble.api.FormatException;
 import org.briarproject.bramble.api.db.DbException;
 import org.briarproject.bramble.api.identity.IdentityManager;
@@ -37,21 +34,14 @@ import androidx.annotation.Nullable;
 import androidx.lifecycle.LiveData;
 import androidx.lifecycle.MutableLiveData;
 
-import static android.text.util.Linkify.WEB_URLS;
-import static android.text.util.Linkify.addLinks;
 import static android.view.View.GONE;
 import static android.view.View.VISIBLE;
-import static androidx.core.text.HtmlCompat.TO_HTML_PARAGRAPH_LINES_INDIVIDUAL;
-import static androidx.core.text.HtmlCompat.toHtml;
-import static com.google.android.material.snackbar.BaseTransientBottomBar.LENGTH_SHORT;
 import static java.util.logging.Level.WARNING;
 import static org.briarproject.bramble.util.LogUtils.logException;
 import static org.briarproject.bramble.util.StringUtils.isNullOrEmpty;
-import static org.briarproject.bramble.util.StringUtils.toUtf8;
 import static org.briarproject.briar.android.view.TextSendController.SendState;
 import static org.briarproject.briar.android.view.TextSendController.SendState.SENT;
 import static org.briarproject.briar.api.blog.BlogConstants.MAX_BLOG_POST_TEXT_LENGTH;
-import static org.briarproject.briar.util.HtmlUtils.cleanArticle;
 
 @MethodsNotNullByDefault
 @ParametersNotNullByDefault
@@ -128,23 +118,12 @@ public class WriteBlogPostActivity extends BriarActivity
 			List<AttachmentHeader> headers, long expectedAutoDeleteTimer) {
 		if (isNullOrEmpty(text)) throw new AssertionError();
 
-		SpannableStringBuilder ssb = SpannableStringBuilder.valueOf(text);
-		addLinks(ssb, WEB_URLS);
-		String html = cleanArticle(toHtml(ssb,
-				TO_HTML_PARAGRAPH_LINES_INDIVIDUAL));
-
-		int textLength = toUtf8(html).length;
-		if (textLength > MAX_BLOG_POST_TEXT_LENGTH) {
-			Snackbar.make(input, R.string.text_too_long, LENGTH_SHORT).show();
-			return new MutableLiveData<>(null);
-		}
-
 		// hide publish button, show progress bar
 		input.hideSoftKeyboard();
 		input.setVisibility(GONE);
 		progressBar.setVisibility(VISIBLE);
 
-		storePost(html);
+		storePost(text);
 		return new MutableLiveData<>(SENT);
 	}
 

briar-android/src/main/java/org/briarproject/briar/android/contact/add/nearby/AddNearbyContactViewModel.java

@@ -88,7 +88,6 @@ import static org.briarproject.bramble.api.plugin.Plugin.State.ACTIVE;
 import static org.briarproject.bramble.api.plugin.Plugin.State.DISABLED;
 import static org.briarproject.bramble.api.plugin.Plugin.State.INACTIVE;
 import static org.briarproject.bramble.api.plugin.Plugin.State.STARTING_STOPPING;
-import static org.briarproject.bramble.util.AndroidUtils.registerReceiver;
 import static org.briarproject.bramble.util.LogUtils.logException;
 import static org.briarproject.bramble.util.StringUtils.ISO_8859_1;
 import static org.briarproject.briar.android.contact.add.nearby.AddNearbyContactPermissionManager.areEssentialPermissionsGranted;
@@ -209,7 +208,7 @@ class AddNearbyContactViewModel extends AndroidViewModel
 		qrCodeDecoder = new QrCodeDecoder(androidExecutor, ioExecutor, this);
 		eventBus.addListener(this);
 		IntentFilter filter = new IntentFilter(ACTION_SCAN_MODE_CHANGED);
-		registerReceiver(getApplication(), bluetoothReceiver, filter, false);
+		getApplication().registerReceiver(bluetoothReceiver, filter);
 	}
 
 	@Override

briar-android/src/main/java/org/briarproject/briar/android/contact/add/remote/LinkExchangeFragment.java

@@ -1,6 +1,5 @@
 package org.briarproject.briar.android.contact.add.remote;
 
-import android.content.ActivityNotFoundException;
 import android.content.ClipData;
 import android.content.ClipboardManager;
 import android.os.Bundle;
@@ -21,7 +20,6 @@ import org.briarproject.briar.android.view.InfoView;
 import org.briarproject.nullsafety.MethodsNotNullByDefault;
 import org.briarproject.nullsafety.ParametersNotNullByDefault;
 
-import java.util.logging.Logger;
 import java.util.regex.Matcher;
 
 import javax.annotation.Nullable;
@@ -31,12 +29,8 @@ import androidx.core.app.ShareCompat.IntentBuilder;
 import androidx.lifecycle.ViewModelProvider;
 
 import static android.content.Context.CLIPBOARD_SERVICE;
-import static android.widget.Toast.LENGTH_LONG;
 import static android.widget.Toast.LENGTH_SHORT;
-import static java.util.logging.Level.WARNING;
-import static java.util.logging.Logger.getLogger;
 import static org.briarproject.bramble.api.contact.HandshakeLinkConstants.LINK_REGEX;
-import static org.briarproject.bramble.util.LogUtils.logException;
 import static org.briarproject.briar.android.util.UiUtils.hideViewOnSmallScreen;
 import static org.briarproject.briar.android.util.UiUtils.observeOnce;
 
@@ -45,7 +39,6 @@ import static org.briarproject.briar.android.util.UiUtils.observeOnce;
 public class LinkExchangeFragment extends BaseFragment {
 
 	private static final String TAG = LinkExchangeFragment.class.getName();
-	private static final Logger LOG = getLogger(TAG);
 
 	@Inject
 	ViewModelProvider.Factory viewModelFactory;
@@ -123,18 +116,11 @@ public class LinkExchangeFragment extends BaseFragment {
 		copyButton.setEnabled(true);
 
 		Button shareButton = v.findViewById(R.id.shareButton);
-		shareButton.setOnClickListener(view -> {
-			try {
+		shareButton.setOnClickListener(view ->
 				IntentBuilder.from(requireActivity())
 						.setText(link)
 						.setType("text/plain")
-						.startChooser();
-			} catch (ActivityNotFoundException e) {
-				logException(LOG, WARNING, e);
-				Toast.makeText(requireContext(),
-						R.string.error_start_activity, LENGTH_LONG).show();
-			}
-		});
+						.startChooser());
 		shareButton.setEnabled(true);
 
 		InfoView infoText = v.findViewById(R.id.infoView);

briar-android/src/main/java/org/briarproject/briar/android/contact/add/remote/NicknameFragment.java

@@ -55,7 +55,6 @@ public class NicknameFragment extends BaseFragment {
 
 	private TextInputLayout contactNameLayout;
 	private TextInputEditText contactNameInput;
-	private BriarButton addButton;
 
 	@Override
 	public String getUniqueTag() {
@@ -92,7 +91,7 @@ public class NicknameFragment extends BaseFragment {
 		contactNameLayout = v.findViewById(R.id.contactNameLayout);
 		contactNameInput = v.findViewById(R.id.contactNameInput);
 
-		addButton = v.findViewById(R.id.addButton);
+		BriarButton addButton = v.findViewById(R.id.addButton);
 		addButton.setOnClickListener(view -> onAddButtonClicked());
 
 		return v;
@@ -113,7 +112,7 @@ public class NicknameFragment extends BaseFragment {
 	@Nullable
 	private String getNicknameOrNull() {
 		Editable text = contactNameInput.getText();
-		if (text == null || text.toString().trim().isEmpty()) {
+		if (text == null || text.toString().trim().length() == 0) {
 			contactNameLayout.setError(getString(R.string.nickname_missing));
 			contactNameInput.requestFocus();
 			return null;
@@ -130,10 +129,7 @@ public class NicknameFragment extends BaseFragment {
 
 	private void onAddButtonClicked() {
 		String name = getNicknameOrNull();
-		if (name == null) { // invalid nickname
-			addButton.reset();
-			return;
-		}
+		if (name == null) return;  // invalid nickname
 
 		LifecycleOwner owner = getViewLifecycleOwner();
 		viewModel.getAddContactResult().observe(owner, result -> {

briar-android/src/main/java/org/briarproject/briar/android/contact/add/remote/PendingContactListActivity.java

@@ -4,7 +4,6 @@ import android.content.DialogInterface.OnClickListener;
 import android.os.Bundle;
 import android.view.MenuItem;
 
-import com.google.android.material.dialog.MaterialAlertDialogBuilder;
 import com.google.android.material.snackbar.Snackbar;
 
 import org.briarproject.bramble.api.contact.PendingContactId;
@@ -22,6 +21,7 @@ import javax.annotation.Nullable;
 import javax.inject.Inject;
 
 import androidx.appcompat.app.ActionBar;
+import androidx.appcompat.app.AlertDialog;
 import androidx.lifecycle.ViewModelProvider;
 import androidx.recyclerview.widget.LinearLayoutManager;
 
@@ -110,7 +110,7 @@ public class PendingContactListActivity extends BriarActivity
 		// show warning dialog
 		OnClickListener removeListener = (dialog, which) ->
 				removePendingContact(item.getPendingContact().getId());
-		MaterialAlertDialogBuilder builder = new MaterialAlertDialogBuilder(
+		AlertDialog.Builder builder = new AlertDialog.Builder(
 				PendingContactListActivity.this, R.style.BriarDialogTheme);
 		builder.setTitle(
 				getString(R.string.dialog_title_remove_pending_contact));

briar-android/src/main/java/org/briarproject/briar/android/controller/BriarControllerImpl.java

@@ -147,7 +147,7 @@ public class BriarControllerImpl implements BriarController {
 				service.waitForStartup();
 				// Shut down the service and wait for it to shut down
 				LOG.info("Shutting down service");
-				service.shutdown(true);
+				service.shutdown();
 				service.waitForShutdown();
 			} catch (InterruptedException e) {
 				LOG.warning("Interrupted while waiting for service");

briar-android/src/main/java/org/briarproject/briar/android/conversation/ConversationActivity.java

@@ -19,7 +19,6 @@ import android.widget.ImageView;
 import android.widget.TextView;
 import android.widget.Toast;
 
-import com.google.android.material.dialog.MaterialAlertDialogBuilder;
 import com.google.android.material.snackbar.Snackbar;
 
 import org.briarproject.bramble.api.FeatureFlags;
@@ -102,6 +101,7 @@ import javax.inject.Inject;
 import androidx.activity.result.ActivityResultLauncher;
 import androidx.annotation.Nullable;
 import androidx.annotation.UiThread;
+import androidx.appcompat.app.AlertDialog;
 import androidx.appcompat.widget.ActionMenuView;
 import androidx.appcompat.widget.Toolbar;
 import androidx.core.app.ActivityCompat;
@@ -812,8 +812,8 @@ public class ConversationActivity extends BriarActivity
 	}
 
 	private void askToDeleteAllMessages() {
-		MaterialAlertDialogBuilder builder =
-				new MaterialAlertDialogBuilder(this, R.style.BriarDialogTheme);
+		AlertDialog.Builder builder =
+				new AlertDialog.Builder(this, R.style.BriarDialogTheme);
 		builder.setTitle(getString(R.string.dialog_title_delete_all_messages));
 		builder.setMessage(
 				getString(R.string.dialog_message_delete_all_messages));
@@ -892,8 +892,8 @@ public class ConversationActivity extends BriarActivity
 		}
 		String msg = join(fails, "\n\n");
 		// show dialog
-		MaterialAlertDialogBuilder builder =
-				new MaterialAlertDialogBuilder(this, R.style.BriarDialogTheme);
+		AlertDialog.Builder builder =
+				new AlertDialog.Builder(this, R.style.BriarDialogTheme);
 		builder.setTitle(
 				getString(R.string.dialog_title_not_all_messages_deleted));
 		builder.setMessage(msg);
@@ -904,8 +904,8 @@ public class ConversationActivity extends BriarActivity
 	private void askToRemoveContact() {
 		DialogInterface.OnClickListener okListener =
 				(dialog, which) -> removeContact();
-		MaterialAlertDialogBuilder builder =
-				new MaterialAlertDialogBuilder(ConversationActivity.this,
+		AlertDialog.Builder builder =
+				new AlertDialog.Builder(ConversationActivity.this,
 						R.style.BriarDialogTheme);
 		builder.setTitle(getString(R.string.dialog_title_delete_contact));
 		builder.setMessage(

briar-android/src/main/java/org/briarproject/briar/android/forum/ForumActivity.java

@@ -7,8 +7,6 @@ import android.view.Menu;
 import android.view.MenuInflater;
 import android.view.MenuItem;
 
-import com.google.android.material.dialog.MaterialAlertDialogBuilder;
-
 import org.briarproject.briar.R;
 import org.briarproject.briar.android.activity.ActivityComponent;
 import org.briarproject.briar.android.sharing.ForumSharingStatusActivity;
@@ -22,6 +20,7 @@ import org.briarproject.nullsafety.ParametersNotNullByDefault;
 import javax.annotation.Nullable;
 import javax.inject.Inject;
 
+import androidx.appcompat.app.AlertDialog;
 import androidx.appcompat.widget.Toolbar;
 import androidx.lifecycle.ViewModelProvider;
 
@@ -129,7 +128,7 @@ public class ForumActivity extends
 
 	private void showUnsubscribeDialog() {
 		OnClickListener okListener = (dialog, which) -> viewModel.deleteForum();
-		MaterialAlertDialogBuilder builder = new MaterialAlertDialogBuilder(this,
+		AlertDialog.Builder builder = new AlertDialog.Builder(this,
 				R.style.BriarDialogTheme);
 		builder.setTitle(getString(R.string.dialog_title_leave_forum));
 		builder.setMessage(getString(R.string.dialog_message_leave_forum));

briar-android/src/main/java/org/briarproject/briar/android/forum/ForumListAdapter.java

@@ -13,18 +13,15 @@ import androidx.recyclerview.widget.ListAdapter;
 @NotNullByDefault
 class ForumListAdapter extends ListAdapter<ForumListItem, ForumViewHolder> {
 
-	private final ForumListViewModel viewModel;
-
-	ForumListAdapter(ForumListViewModel viewModel) {
+	ForumListAdapter() {
 		super(new ForumListCallback());
-		this.viewModel = viewModel;
 	}
 
 	@Override
 	public ForumViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
 		View v = LayoutInflater.from(parent.getContext()).inflate(
 				R.layout.list_item_forum, parent, false);
-		return new ForumViewHolder(v, viewModel);
+		return new ForumViewHolder(v);
 	}
 
 	@Override

briar-android/src/main/java/org/briarproject/briar/android/forum/ForumListFragment.java

@@ -40,7 +40,7 @@ public class ForumListFragment extends BaseFragment implements
 	private ForumListViewModel viewModel;
 	private BriarRecyclerView list;
 	private Snackbar snackbar;
-	private ForumListAdapter adapter;
+	private final ForumListAdapter adapter = new ForumListAdapter();
 
 	@Inject
 	ViewModelProvider.Factory viewModelFactory;
@@ -54,7 +54,6 @@ public class ForumListFragment extends BaseFragment implements
 		component.inject(this);
 		viewModel = new ViewModelProvider(this, viewModelFactory)
 				.get(ForumListViewModel.class);
-		adapter = new ForumListAdapter(viewModel);
 	}
 
 	@Nullable

briar-android/src/main/java/org/briarproject/briar/android/forum/ForumListViewModel.java

@@ -1,7 +1,6 @@
 package org.briarproject.briar.android.forum;
 
 import android.app.Application;
-import android.widget.Toast;
 
 import org.briarproject.bramble.api.contact.event.ContactRemovedEvent;
 import org.briarproject.bramble.api.db.DatabaseExecutor;
@@ -16,7 +15,6 @@ import org.briarproject.bramble.api.sync.GroupId;
 import org.briarproject.bramble.api.sync.event.GroupAddedEvent;
 import org.briarproject.bramble.api.sync.event.GroupRemovedEvent;
 import org.briarproject.bramble.api.system.AndroidExecutor;
-import org.briarproject.briar.R;
 import org.briarproject.briar.android.viewmodel.DbViewModel;
 import org.briarproject.briar.android.viewmodel.LiveResult;
 import org.briarproject.briar.api.android.AndroidNotificationManager;
@@ -42,7 +40,6 @@ import androidx.annotation.UiThread;
 import androidx.lifecycle.LiveData;
 import androidx.lifecycle.MutableLiveData;
 
-import static android.widget.Toast.LENGTH_SHORT;
 import static java.util.logging.Logger.getLogger;
 import static org.briarproject.bramble.util.LogUtils.logDuration;
 import static org.briarproject.bramble.util.LogUtils.now;
@@ -183,17 +180,4 @@ class ForumListViewModel extends DbViewModel implements EventListener {
 		return numInvitations;
 	}
 
-	void deleteForum(GroupId groupId) {
-		runOnDbThread(() -> {
-			try {
-				Forum f = forumManager.getForum(groupId);
-				forumManager.removeForum(f);
-				androidExecutor.runOnUiThread(() -> Toast
-						.makeText(getApplication(), R.string.forum_left_toast,
-								LENGTH_SHORT).show());
-			} catch (DbException e) {
-				handleException(e);
-			}
-		});
-	}
 }

briar-android/src/main/java/org/briarproject/briar/android/forum/ForumViewHolder.java

@@ -4,7 +4,6 @@ import android.content.Context;
 import android.content.Intent;
 import android.view.View;
 import android.view.ViewGroup;
-import android.widget.PopupMenu;
 import android.widget.TextView;
 
 import org.briarproject.briar.R;
@@ -21,7 +20,6 @@ import static org.briarproject.briar.android.activity.BriarActivity.GROUP_NAME;
 
 class ForumViewHolder extends RecyclerView.ViewHolder {
 
-	private final ForumListViewModel viewModel;
 	private final Context ctx;
 	private final ViewGroup layout;
 	private final TextAvatarView avatar;
@@ -29,9 +27,8 @@ class ForumViewHolder extends RecyclerView.ViewHolder {
 	private final TextView postCount;
 	private final TextView date;
 
-	ForumViewHolder(View v, ForumListViewModel viewModel) {
+	ForumViewHolder(View v) {
 		super(v);
-		this.viewModel = viewModel;
 		ctx = v.getContext();
 		layout = (ViewGroup) v;
 		avatar = v.findViewById(R.id.avatarView);
@@ -67,21 +64,6 @@ class ForumViewHolder extends RecyclerView.ViewHolder {
 			date.setVisibility(VISIBLE);
 		}
 
-		// Open popup menu on long click
-		layout.setOnLongClickListener(v -> {
-			PopupMenu pm = new PopupMenu(ctx, v);
-			pm.getMenuInflater().inflate(R.menu.forum_list_item_actions,
-					pm.getMenu());
-			pm.setOnMenuItemClickListener(it -> {
-				if (it.getItemId() == R.id.action_forum_delete) {
-					viewModel.deleteForum(item.getForum().getId());
-				}
-				return true;
-			});
-			pm.show();
-			return true;
-		});
-
 		// Open Forum on Click
 		layout.setOnClickListener(v -> {
 			Intent i = new Intent(ctx, ForumActivity.class);

briar-android/src/main/java/org/briarproject/briar/android/fragment/ScreenFilterDialogFragment.java

@@ -13,8 +13,6 @@ import android.view.View;
 import android.widget.CheckBox;
 import android.widget.TextView;
 
-import com.google.android.material.dialog.MaterialAlertDialogBuilder;
-
 import org.briarproject.briar.R;
 import org.briarproject.briar.android.activity.BaseActivity;
 import org.briarproject.briar.api.android.ScreenFilterMonitor;
@@ -29,6 +27,7 @@ import java.util.Collection;
 import javax.annotation.Nullable;
 import javax.inject.Inject;
 
+import androidx.appcompat.app.AlertDialog;
 import androidx.fragment.app.DialogFragment;
 
 import static android.os.Build.VERSION.SDK_INT;
@@ -76,8 +75,8 @@ public class ScreenFilterDialogFragment extends DialogFragment {
 	public Dialog onCreateDialog(@Nullable Bundle savedInstanceState) {
 		Activity activity = getActivity();
 		if (activity == null) throw new IllegalStateException();
-		MaterialAlertDialogBuilder builder = new MaterialAlertDialogBuilder(
-				activity, R.style.BriarDialogThemeNoFilter);
+		AlertDialog.Builder builder = new AlertDialog.Builder(activity,
+				R.style.BriarDialogThemeNoFilter);
 		builder.setTitle(R.string.screen_filter_title);
 		Bundle args = getArguments();
 		if (args == null) throw new IllegalStateException();

briar-android/src/main/java/org/briarproject/briar/android/hotspot/AbstractConditionManager.java

@@ -6,13 +6,12 @@ import android.content.Intent;
 import android.net.wifi.WifiManager;
 import android.widget.Toast;
 
-import com.google.android.material.dialog.MaterialAlertDialogBuilder;
-
 import org.briarproject.briar.R;
 
 import androidx.activity.result.ActivityResultLauncher;
 import androidx.activity.result.contract.ActivityResultContracts;
 import androidx.annotation.StringRes;
+import androidx.appcompat.app.AlertDialog;
 import androidx.core.util.Consumer;
 import androidx.fragment.app.FragmentActivity;
 
@@ -74,8 +73,7 @@ abstract class AbstractConditionManager {
 	void showRationale(Context ctx, @StringRes int title,
 			@StringRes int body, Runnable onContinueClicked,
 			Runnable onDismiss) {
-		MaterialAlertDialogBuilder builder =
-				new MaterialAlertDialogBuilder(ctx);
+		AlertDialog.Builder builder = new AlertDialog.Builder(ctx);
 		builder.setTitle(title);
 		builder.setMessage(body);
 		builder.setNeutralButton(R.string.continue_button,

briar-android/src/main/java/org/briarproject/briar/android/hotspot/HotspotIntroFragment.java

@@ -61,7 +61,6 @@ public class HotspotIntroFragment extends Fragment {
 		getAndroidComponent(activity).inject(this);
 		viewModel = new ViewModelProvider(activity, viewModelFactory)
 				.get(HotspotViewModel.class);
-		conditionManager.init(requireActivity());
 	}
 
 	@Override
@@ -77,6 +76,8 @@ public class HotspotIntroFragment extends Fragment {
 
 		startButton.setOnClickListener(this::onButtonClick);
 
+		conditionManager.init(requireActivity());
+
 		return v;
 	}
 

briar-android/src/main/java/org/briarproject/briar/android/hotspot/HotspotManager.java

@@ -432,8 +432,7 @@ class HotspotManager {
 
 	@RequiresApi(29)
 	private String getPassword() {
-		return getRandomString(4) + "-" + getRandomString(4) + "-" +
-				getRandomString(4) + "-" + getRandomString(4);
+		return getRandomString(8);
 	}
 
 	private static String createWifiLoginString(String ssid, String password) {

briar-android/src/main/java/org/briarproject/briar/android/login/ChangePasswordActivity.java

@@ -32,7 +32,6 @@ import static android.widget.Toast.LENGTH_LONG;
 import static org.briarproject.bramble.api.crypto.DecryptionResult.KEY_STRENGTHENER_ERROR;
 import static org.briarproject.bramble.api.crypto.DecryptionResult.SUCCESS;
 import static org.briarproject.bramble.api.crypto.PasswordStrengthEstimator.QUITE_WEAK;
-import static org.briarproject.bramble.api.crypto.PasswordStrengthEstimator.STRONG;
 import static org.briarproject.briar.android.login.LoginUtils.createKeyStrengthenerErrorDialog;
 import static org.briarproject.briar.android.util.UiUtils.hideSoftKeyboard;
 import static org.briarproject.briar.android.util.UiUtils.setError;
@@ -124,25 +123,12 @@ public class ChangePasswordActivity extends BriarActivity
 		boolean passwordsMatch = firstPassword.equals(secondPassword);
 		float strength = viewModel.estimatePasswordStrength(firstPassword);
 		strengthMeter.setStrength(strength);
-
-		if (!firstPassword.isEmpty()) {
-			if (strength >= STRONG) {
-				newPasswordEntryWrapper.setHelperText(
-						getString(R.string.password_strong));
-			} else if (strength >= QUITE_WEAK) {
-				newPasswordEntryWrapper.setHelperText(
-						getString(R.string.password_quite_strong));
-			} else {
-				newPasswordEntryWrapper.setHelperTextEnabled(false);
-			}
-		}
-
 		setError(newPasswordEntryWrapper,
 				getString(R.string.password_too_weak),
-				!firstPassword.isEmpty() && strength < QUITE_WEAK);
+				firstPassword.length() > 0 && strength < QUITE_WEAK);
 		setError(newPasswordConfirmationWrapper,
 				getString(R.string.passwords_do_not_match),
-				!secondPassword.isEmpty() && !passwordsMatch);
+				secondPassword.length() > 0 && !passwordsMatch);
 		changePasswordButton.setEnabled(
 				!currentPassword.getText().toString().isEmpty() &&
 						passwordsMatch && strength >= QUITE_WEAK);

briar-android/src/main/java/org/briarproject/briar/android/login/LoginUtils.java

@@ -2,8 +2,6 @@ package org.briarproject.briar.android.login;
 
 import android.content.Context;
 
-import com.google.android.material.dialog.MaterialAlertDialogBuilder;
-
 import org.briarproject.briar.R;
 import org.briarproject.nullsafety.NotNullByDefault;
 
@@ -15,8 +13,8 @@ import static org.briarproject.briar.android.util.UiUtils.getDialogIcon;
 class LoginUtils {
 
 	static AlertDialog createKeyStrengthenerErrorDialog(Context ctx) {
-		MaterialAlertDialogBuilder builder =
-				new MaterialAlertDialogBuilder(ctx, R.style.BriarDialogTheme);
+		AlertDialog.Builder builder =
+				new AlertDialog.Builder(ctx, R.style.BriarDialogTheme);
 		builder.setIcon(getDialogIcon(ctx, R.drawable.alerts_and_states_error));
 		builder.setTitle(R.string.dialog_title_cannot_check_password);
 		builder.setMessage(R.string.dialog_message_cannot_check_password);

briar-android/src/main/java/org/briarproject/briar/android/login/PasswordFragment.java

@@ -9,7 +9,6 @@ import android.view.ViewGroup;
 import android.widget.Button;
 import android.widget.ProgressBar;
 
-import com.google.android.material.dialog.MaterialAlertDialogBuilder;
 import com.google.android.material.textfield.TextInputEditText;
 import com.google.android.material.textfield.TextInputLayout;
 
@@ -41,7 +40,6 @@ import static org.briarproject.bramble.api.crypto.DecryptionResult.SUCCESS;
 import static org.briarproject.briar.android.login.LoginUtils.createKeyStrengthenerErrorDialog;
 import static org.briarproject.briar.android.util.UiUtils.enterPressed;
 import static org.briarproject.briar.android.util.UiUtils.hideSoftKeyboard;
-import static org.briarproject.briar.android.util.UiUtils.hideViewOnSmallScreen;
 import static org.briarproject.briar.android.util.UiUtils.setError;
 import static org.briarproject.briar.android.util.UiUtils.showSoftKeyboard;
 
@@ -102,12 +100,6 @@ public class PasswordFragment extends BaseFragment implements TextWatcher {
 		return v;
 	}
 
-	@Override
-	public void onStart() {
-		super.onStart();
-		hideViewOnSmallScreen(requireView().findViewById(R.id.logo));
-	}
-
 	@Override
 	public void beforeTextChanged(CharSequence s, int start, int count,
 			int after) {
@@ -155,11 +147,9 @@ public class PasswordFragment extends BaseFragment implements TextWatcher {
 	}
 
 	private void onForgottenPasswordClick() {
-		MaterialAlertDialogBuilder builder = new MaterialAlertDialogBuilder(
-				requireContext(), R.style.BriarDialogTheme);
+		AlertDialog.Builder builder = new AlertDialog.Builder(requireContext(),
+				R.style.BriarDialogTheme);
 		builder.setTitle(R.string.dialog_title_lost_password);
-		builder.setBackgroundInsetStart(25);
-		builder.setBackgroundInsetEnd(25);
 		builder.setMessage(R.string.dialog_message_lost_password);
 		builder.setPositiveButton(R.string.cancel, null);
 		builder.setNegativeButton(R.string.delete,

briar-android/src/main/java/org/briarproject/briar/android/login/StartupActivity.java

@@ -1,6 +1,5 @@
 package org.briarproject.briar.android.login;
 
-import android.annotation.SuppressLint;
 import android.content.Intent;
 import android.os.Bundle;
 
@@ -75,7 +74,6 @@ public class StartupActivity extends BaseActivity implements
 	}
 
 	@Override
-	@SuppressLint("MissingSuperCall")
 	public void onBackPressed() {
 		// Move task and activity to the background instead of showing another
 		// password prompt.

briar-android/src/main/java/org/briarproject/briar/android/mailbox/ErrorWizardFragment.java

@@ -11,7 +11,6 @@ import android.widget.RadioGroup;
 import android.widget.ScrollView;
 
 import com.google.android.material.animation.ArgbEvaluatorCompat;
-import com.google.android.material.dialog.MaterialAlertDialogBuilder;
 
 import org.briarproject.briar.R;
 import org.briarproject.briar.android.view.BriarButton;
@@ -25,6 +24,7 @@ import javax.inject.Inject;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
+import androidx.appcompat.app.AlertDialog;
 import androidx.fragment.app.Fragment;
 import androidx.fragment.app.FragmentActivity;
 import androidx.lifecycle.ViewModelProvider;
@@ -148,8 +148,8 @@ public class ErrorWizardFragment extends Fragment {
 	}
 
 	private void onUnlinkButtonClicked(View v) {
-		MaterialAlertDialogBuilder builder = new MaterialAlertDialogBuilder(
-				requireContext(), R.style.BriarDialogTheme);
+		AlertDialog.Builder builder = new AlertDialog.Builder(requireContext(),
+				R.style.BriarDialogTheme);
 		builder.setTitle(R.string.mailbox_status_unlink_dialog_title);
 		builder.setMessage(R.string.mailbox_status_unlink_dialog_question);
 		builder.setPositiveButton(R.string.cancel,

briar-android/src/main/java/org/briarproject/briar/android/mailbox/MailboxActivity.java

@@ -5,8 +5,6 @@ import android.view.MenuItem;
 import android.widget.ProgressBar;
 import android.widget.Toast;
 
-import com.google.android.material.dialog.MaterialAlertDialogBuilder;
-
 import org.briarproject.bramble.api.mailbox.MailboxPairingState;
 import org.briarproject.bramble.api.mailbox.MailboxPairingState.ConnectionError;
 import org.briarproject.bramble.api.mailbox.MailboxPairingState.InvalidQrCode;
@@ -33,6 +31,7 @@ import org.briarproject.nullsafety.ParametersNotNullByDefault;
 import javax.inject.Inject;
 
 import androidx.annotation.Nullable;
+import androidx.appcompat.app.AlertDialog;
 import androidx.fragment.app.Fragment;
 import androidx.fragment.app.FragmentManager;
 import androidx.lifecycle.ViewModelProvider;
@@ -250,8 +249,8 @@ public class MailboxActivity extends BriarActivity {
 		if (tellUserToWipeMailbox) {
 			showFragment(getSupportFragmentManager(), new BlankFragment(),
 					BlankFragment.TAG);
-			MaterialAlertDialogBuilder builder = new MaterialAlertDialogBuilder(
-					this, R.style.BriarDialogTheme);
+			AlertDialog.Builder builder =
+					new AlertDialog.Builder(this, R.style.BriarDialogTheme);
 			builder.setTitle(R.string.mailbox_status_unlink_no_wipe_title);
 			builder.setMessage(R.string.mailbox_status_unlink_no_wipe_message);
 			builder.setNeutralButton(R.string.got_it,

briar-android/src/main/java/org/briarproject/briar/android/mailbox/MailboxStatusFragment.java

@@ -13,8 +13,6 @@ import android.widget.ImageView;
 import android.widget.ProgressBar;
 import android.widget.TextView;
 
-import com.google.android.material.dialog.MaterialAlertDialogBuilder;
-
 import org.briarproject.bramble.api.mailbox.MailboxStatus;
 import org.briarproject.briar.R;
 import org.briarproject.briar.android.view.BriarButton;
@@ -216,8 +214,8 @@ public class MailboxStatusFragment extends Fragment {
 	}
 
 	private void onUnlinkButtonClicked(boolean showWarning) {
-		MaterialAlertDialogBuilder builder = new MaterialAlertDialogBuilder(
-				requireContext(), R.style.BriarDialogTheme);
+		AlertDialog.Builder builder = new AlertDialog.Builder(requireContext(),
+				R.style.BriarDialogTheme);
 		builder.setTitle(R.string.mailbox_status_unlink_dialog_title);
 		String msg = getString(R.string.mailbox_status_unlink_dialog_question);
 		if (showWarning) {

briar-android/src/main/java/org/briarproject/briar/android/navdrawer/PluginViewModel.java

@@ -48,7 +48,6 @@ import static java.util.logging.Level.INFO;
 import static java.util.logging.Logger.getLogger;
 import static org.briarproject.bramble.api.plugin.Plugin.PREF_PLUGIN_ENABLE;
 import static org.briarproject.bramble.api.plugin.Plugin.State.STARTING_STOPPING;
-import static org.briarproject.bramble.util.AndroidUtils.registerReceiver;
 import static org.briarproject.bramble.util.LogUtils.logDuration;
 import static org.briarproject.bramble.util.LogUtils.now;
 
@@ -97,8 +96,7 @@ public class PluginViewModel extends DbViewModel implements EventListener {
 		this.eventBus = eventBus;
 		eventBus.addListener(this);
 		receiver = new BluetoothStateReceiver();
-		registerReceiver(app, receiver, new IntentFilter(ACTION_STATE_CHANGED),
-				false);
+		app.registerReceiver(receiver, new IntentFilter(ACTION_STATE_CHANGED));
 		networkStatus.setValue(networkManager.getNetworkStatus());
 		torPluginState.setValue(getTransportState(TorConstants.ID));
 		wifiPluginState.setValue(getTransportState(LanTcpConstants.ID));

briar-android/src/main/java/org/briarproject/briar/android/navdrawer/TransportsActivity.java

@@ -219,8 +219,7 @@ public class TransportsActivity extends BriarActivity {
 	}
 
 	private void onClicked(TransportId transportId, boolean enable) {
-		if (transportId.equals(BluetoothConstants.ID) && enable
-				&& SDK_INT >= 31 && !areBluetoothPermissionsGranted(this)) {
+		if (enable && SDK_INT >= 31 && !areBluetoothPermissionsGranted(this)) {
 			if (shouldShowRequestPermissionRationale(BLUETOOTH_CONNECT)) {
 				showRationale(this, R.string.permission_bluetooth_title,
 						R.string.permission_bluetooth_body,

briar-android/src/main/java/org/briarproject/briar/android/panic/PanicPreferencesFragment.java

@@ -10,8 +10,6 @@ import android.net.Uri;
 import android.os.Bundle;
 import android.text.TextUtils;
 
-import com.google.android.material.dialog.MaterialAlertDialogBuilder;
-
 import org.briarproject.briar.R;
 
 import java.util.ArrayList;
@@ -19,6 +17,7 @@ import java.util.logging.Logger;
 
 import javax.annotation.Nullable;
 
+import androidx.appcompat.app.AlertDialog;
 import androidx.preference.ListPreference;
 import androidx.preference.PreferenceFragmentCompat;
 import androidx.preference.SwitchPreferenceCompat;
@@ -202,8 +201,8 @@ public class PanicPreferencesFragment extends PreferenceFragmentCompat
 			getActivity().finish();
 		};
 
-		MaterialAlertDialogBuilder builder = new MaterialAlertDialogBuilder(
-				requireContext(), R.style.BriarDialogTheme);
+		AlertDialog.Builder builder = new AlertDialog.Builder(getContext(),
+				R.style.BriarDialogTheme);
 		builder.setTitle(getString(R.string.dialog_title_connect_panic_app));
 
 		CharSequence app = getString(R.string.unknown_app);

briar-android/src/main/java/org/briarproject/briar/android/privategroup/conversation/GroupActivity.java

@@ -6,8 +6,6 @@ import android.view.Menu;
 import android.view.MenuInflater;
 import android.view.MenuItem;
 
-import com.google.android.material.dialog.MaterialAlertDialogBuilder;
-
 import org.briarproject.briar.R;
 import org.briarproject.briar.android.activity.ActivityComponent;
 import org.briarproject.briar.android.privategroup.creation.GroupInviteActivity;
@@ -22,6 +20,7 @@ import org.briarproject.nullsafety.ParametersNotNullByDefault;
 import javax.annotation.Nullable;
 import javax.inject.Inject;
 
+import androidx.appcompat.app.AlertDialog;
 import androidx.appcompat.widget.Toolbar;
 import androidx.lifecycle.ViewModelProvider;
 
@@ -179,8 +178,8 @@ public class GroupActivity extends
 	}
 
 	private void showLeaveGroupDialog() {
-		MaterialAlertDialogBuilder builder = new MaterialAlertDialogBuilder(
-				this, R.style.BriarDialogTheme);
+		AlertDialog.Builder builder =
+				new AlertDialog.Builder(this, R.style.BriarDialogTheme);
 		builder.setTitle(getString(R.string.groups_leave_dialog_title));
 		builder.setMessage(getString(R.string.groups_leave_dialog_message));
 		builder.setNegativeButton(R.string.dialog_button_leave,
@@ -190,8 +189,8 @@ public class GroupActivity extends
 	}
 
 	private void showDissolveGroupDialog() {
-		MaterialAlertDialogBuilder builder = new MaterialAlertDialogBuilder(
-				this, R.style.BriarDialogTheme);
+		AlertDialog.Builder builder =
+				new AlertDialog.Builder(this, R.style.BriarDialogTheme);
 		builder.setTitle(getString(R.string.groups_dissolve_dialog_title));
 		builder.setMessage(getString(R.string.groups_dissolve_dialog_message));
 		builder.setNegativeButton(R.string.groups_dissolve_button,
@@ -207,8 +206,8 @@ public class GroupActivity extends
 	}
 
 	private void onGroupDissolved() {
-		MaterialAlertDialogBuilder builder = new MaterialAlertDialogBuilder(
-				this, R.style.BriarDialogTheme);
+		AlertDialog.Builder builder =
+				new AlertDialog.Builder(this, R.style.BriarDialogTheme);
 		builder.setTitle(getString(R.string.groups_dissolved_dialog_title));
 		builder.setMessage(getString(R.string.groups_dissolved_dialog_message));
 		builder.setNeutralButton(R.string.ok, null);

briar-android/src/main/java/org/briarproject/briar/android/privategroup/reveal/RevealContactsActivity.java

@@ -9,8 +9,6 @@ import android.view.View;
 import android.view.View.OnClickListener;
 import android.widget.Button;
 
-import com.google.android.material.dialog.MaterialAlertDialogBuilder;
-
 import org.briarproject.bramble.api.contact.ContactId;
 import org.briarproject.bramble.api.db.DbException;
 import org.briarproject.bramble.api.sync.GroupId;
@@ -28,6 +26,7 @@ import javax.annotation.Nullable;
 import javax.inject.Inject;
 
 import androidx.annotation.LayoutRes;
+import androidx.appcompat.app.AlertDialog;
 
 @MethodsNotNullByDefault
 @ParametersNotNullByDefault
@@ -106,8 +105,7 @@ public class RevealContactsActivity extends ContactSelectorActivity
 	}
 
 	private void showOnboardingDialog() {
-		new MaterialAlertDialogBuilder(this,
-				R.style.OnboardingDialogTheme)
+		new AlertDialog.Builder(this, R.style.OnboardingDialogTheme)
 				.setMessage(getString(R.string.groups_reveal_dialog_message))
 				.setNeutralButton(R.string.got_it,
 						(dialog, which) -> dialog.cancel())

briar-android/src/main/java/org/briarproject/briar/android/reporting/BriarReportCollector.java

@@ -200,7 +200,6 @@ class BriarReportCollector {
 				storageInfo);
 	}
 
-	@SuppressLint({"HardwareIds", "MissingPermission"})
 	private ReportItem getConnectivity() {
 		MultiReportInfo connectivityInfo = new MultiReportInfo();
 
@@ -283,14 +282,13 @@ class BriarReportCollector {
 			connectivityInfo.add("BluetoothAvailable", true);
 
 			// Is Bluetooth enabled?
-			boolean btEnabled = hasBtConnectPermission(ctx) && bt.isEnabled();
-			try {
-				btEnabled = btEnabled && !isNullOrEmpty(bt.getAddress());
-			} catch (SecurityException ignored) {
-			}
+			@SuppressLint("HardwareIds")
+			boolean btEnabled = hasBtConnectPermission(ctx) && bt.isEnabled()
+					&& !isNullOrEmpty(bt.getAddress());
 			connectivityInfo.add("BluetoothEnabled", btEnabled);
 
 			// Is Bluetooth connectable?
+			@SuppressLint("MissingPermission")
 			int scanMode = areBluetoothPermissionsGranted(ctx) ?
 					bt.getScanMode() : -1;
 			boolean btConnectable = scanMode == SCAN_MODE_CONNECTABLE ||

briar-android/src/main/java/org/briarproject/briar/android/reporting/CrashReportActivity.java

@@ -1,6 +1,5 @@
 package org.briarproject.briar.android.reporting;
 
-import android.annotation.SuppressLint;
 import android.content.Intent;
 import android.os.Bundle;
 import android.os.Handler;
@@ -88,7 +87,6 @@ public class CrashReportActivity extends BaseActivity
 	}
 
 	@Override
-	@SuppressLint("MissingSuperCall")
 	public void onBackPressed() {
 		exit();
 	}

briar-android/src/main/java/org/briarproject/briar/android/settings/ConfirmAvatarDialogFragment.java

@@ -10,7 +10,6 @@ import android.widget.ImageView;
 import android.widget.TextView;
 
 import com.bumptech.glide.load.engine.DiskCacheStrategy;
-import com.google.android.material.dialog.MaterialAlertDialogBuilder;
 
 import org.briarproject.briar.R;
 import org.briarproject.briar.android.activity.BaseActivity;
@@ -21,6 +20,7 @@ import org.briarproject.nullsafety.ParametersNotNullByDefault;
 import javax.inject.Inject;
 
 import androidx.annotation.Nullable;
+import androidx.appcompat.app.AlertDialog;
 import androidx.fragment.app.DialogFragment;
 import androidx.fragment.app.FragmentActivity;
 import androidx.lifecycle.ViewModelProvider;
@@ -86,7 +86,7 @@ public class ConfirmAvatarDialogFragment extends DialogFragment {
 		);
 
 		int theme = R.style.BriarDialogTheme;
-		return new MaterialAlertDialogBuilder(activity, theme)
+		return new AlertDialog.Builder(activity, theme)
 				.setView(view)
 				.setTitle(R.string.dialog_confirm_profile_picture_title)
 				.setNegativeButton(R.string.cancel, null)

briar-android/src/main/java/org/briarproject/briar/android/settings/DisplayFragment.java

@@ -1,19 +1,21 @@
 package org.briarproject.briar.android.settings;
 
+import android.app.AlertDialog;
 import android.content.Intent;
 import android.os.Bundle;
 
-import com.google.android.material.dialog.MaterialAlertDialogBuilder;
-
 import org.briarproject.briar.R;
 import org.briarproject.briar.android.Localizer;
 import org.briarproject.briar.android.util.UiUtils;
 import org.briarproject.nullsafety.NotNullByDefault;
 
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.List;
 import java.util.Locale;
+import java.util.logging.Logger;
 
+import androidx.core.text.TextUtilsCompat;
 import androidx.fragment.app.FragmentActivity;
 import androidx.preference.ListPreference;
 import androidx.preference.Preference;
@@ -22,7 +24,10 @@ import androidx.preference.PreferenceFragmentCompat;
 import static android.content.Intent.FLAG_ACTIVITY_CLEAR_TASK;
 import static android.content.Intent.FLAG_ACTIVITY_CLEAR_TOP;
 import static android.content.Intent.FLAG_ACTIVITY_NEW_TASK;
+import static android.os.Build.VERSION.SDK_INT;
+import static androidx.core.view.ViewCompat.LAYOUT_DIRECTION_LTR;
 import static java.util.Objects.requireNonNull;
+import static java.util.logging.Logger.getLogger;
 import static org.briarproject.briar.android.BriarApplication.ENTRY_ACTIVITY;
 import static org.briarproject.briar.android.navdrawer.NavDrawerActivity.SIGN_OUT_URI;
 import static org.briarproject.briar.android.settings.SettingsActivity.EXTRA_THEME_CHANGE;
@@ -31,7 +36,10 @@ import static org.briarproject.briar.android.settings.SettingsActivity.EXTRA_THE
 public class DisplayFragment extends PreferenceFragmentCompat {
 
 	public static final String PREF_LANGUAGE = "pref_key_language";
-	public static final String PREF_THEME = "pref_key_theme";
+	private static final String PREF_THEME = "pref_key_theme";
+
+	private static final Logger LOG =
+			getLogger(DisplayFragment.class.getName());
 
 	@Override
 	public void onCreatePreferences(Bundle bundle, String s) {
@@ -42,6 +50,7 @@ public class DisplayFragment extends PreferenceFragmentCompat {
 		language.setOnPreferenceChangeListener(this::onLanguageChanged);
 
 		ListPreference theme = requireNonNull(findPreference(PREF_THEME));
+		setThemeEntries(theme);
 		theme.setOnPreferenceChangeListener(this::onThemeChanged);
 	}
 
@@ -82,6 +91,30 @@ public class DisplayFragment extends PreferenceFragmentCompat {
 		language.setEntryValues(entryValues.toArray(new CharSequence[0]));
 	}
 
+	private boolean isLeftToRight(Locale locale) {
+		// TextUtilsCompat returns the wrong direction for Hebrew on some phones
+		String language = locale.getLanguage();
+		if (language.equals("iw") || language.equals("he")) return false;
+		int direction = TextUtilsCompat.getLayoutDirectionFromLocale(locale);
+		return direction == LAYOUT_DIRECTION_LTR;
+	}
+
+	private void setThemeEntries(ListPreference theme) {
+		if (SDK_INT < 27) {
+			// remove System Default Theme option from preference entries
+			// as it is not functional on this API anyway
+			List<CharSequence> entries =
+					new ArrayList<>(Arrays.asList(theme.getEntries()));
+			entries.remove(getString(R.string.pref_theme_system));
+			theme.setEntries(entries.toArray(new CharSequence[0]));
+			// also remove corresponding value
+			List<CharSequence> values =
+					new ArrayList<>(Arrays.asList(theme.getEntryValues()));
+			values.remove(getString(R.string.pref_theme_system_value));
+			theme.setEntryValues(values.toArray(new CharSequence[0]));
+		}
+	}
+
 	private boolean onThemeChanged(Preference preference, Object newValue) {
 		// activate new theme
 		FragmentActivity activity = requireActivity();
@@ -102,8 +135,8 @@ public class DisplayFragment extends PreferenceFragmentCompat {
 	private boolean onLanguageChanged(Preference preference, Object newValue) {
 		ListPreference language = (ListPreference) preference;
 		if (!language.getValue().equals(newValue)) {
-			MaterialAlertDialogBuilder builder =
-					new MaterialAlertDialogBuilder(requireContext());
+			AlertDialog.Builder builder =
+					new AlertDialog.Builder(getActivity());
 			builder.setTitle(R.string.pref_language_title);
 			builder.setMessage(R.string.pref_language_changed);
 			builder.setPositiveButton(R.string.sign_out_button, (d, i) -> {

briar-android/src/main/java/org/briarproject/briar/android/settings/TorSummaryProvider.java

@@ -40,12 +40,15 @@ class TorSummaryProvider implements SummaryProvider<ListPreference> {
 		String country = locationUtils.getCurrentCountry();
 		String countryName = getCountryDisplayName(country);
 
-		boolean useBridgesByDefault =
-				circumventionProvider.shouldUseBridges(country);
+		boolean blocked =
+				circumventionProvider.isTorProbablyBlocked(country);
+		boolean useBridges = circumventionProvider.doBridgesWork(country);
 		String setting =
 				ctx.getString(R.string.tor_network_setting_without_bridges);
-		if (useBridgesByDefault) {
+		if (blocked && useBridges) {
 			setting = ctx.getString(R.string.tor_network_setting_with_bridges);
+		} else if (blocked) {
+			setting = ctx.getString(R.string.tor_network_setting_never);
 		}
 		return ctx.getString(R.string.tor_network_setting_summary, setting,
 				countryName);

briar-android/src/main/java/org/briarproject/briar/android/splash/ExpiredActivity.java

@@ -13,7 +13,6 @@ import org.briarproject.briar.android.Localizer;
 import androidx.appcompat.app.AppCompatActivity;
 
 import static android.content.Intent.ACTION_VIEW;
-import static android.os.Build.VERSION.SDK_INT;
 import static android.view.WindowManager.LayoutParams.FLAG_SECURE;
 import static org.briarproject.briar.android.TestingConstants.PREVENT_SCREENSHOTS;
 
@@ -26,8 +25,6 @@ public class ExpiredActivity extends AppCompatActivity
 
 		if (PREVENT_SCREENSHOTS) getWindow().addFlags(FLAG_SECURE);
 
-		if (SDK_INT >= 31) getWindow().setHideOverlayWindows(true);
-
 		setContentView(R.layout.activity_expired);
 		findViewById(R.id.download_briar_button).setOnClickListener(this);
 	}
@@ -41,7 +38,7 @@ public class ExpiredActivity extends AppCompatActivity
 
 	@Override
 	public void onClick(View v) {
-		Uri uri = Uri.parse("https://briarproject.org/download-briar");
+		Uri uri = Uri.parse("https://briarproject.org/download.html");
 		startActivity(new Intent(ACTION_VIEW, uri));
 		finish();
 	}

briar-android/src/main/java/org/briarproject/briar/android/util/BriarSnackbarBuilder.java

@@ -18,8 +18,7 @@ import static androidx.core.content.ContextCompat.getColor;
 public class BriarSnackbarBuilder {
 
 	@ColorRes
-	@Nullable
-	private Integer backgroundResId = null;
+	private int backgroundResId = R.color.briar_primary;
 	@StringRes
 	private int actionResId;
 	@Nullable
@@ -27,11 +26,7 @@ public class BriarSnackbarBuilder {
 
 	public Snackbar make(View view, CharSequence text, int duration) {
 		Snackbar s = Snackbar.make(view, text, duration);
-		if (backgroundResId != null) {
-			s.setBackgroundTint(getColor(view.getContext(), backgroundResId));
-			s.setTextColor(
-					getColor(view.getContext(), R.color.md_theme_onSecondary));
-		}
+		s.getView().setBackgroundResource(backgroundResId);
 		if (onClickListener != null) {
 			s.setActionTextColor(getColor(view.getContext(),
 					R.color.briar_button_text_positive));

briar-android/src/main/java/org/briarproject/briar/android/util/PermissionUtils.java

@@ -6,8 +6,6 @@ import android.content.Intent;
 import android.location.LocationManager;
 import android.net.Uri;
 
-import com.google.android.material.dialog.MaterialAlertDialogBuilder;
-
 import org.briarproject.briar.R;
 import org.briarproject.nullsafety.MethodsNotNullByDefault;
 import org.briarproject.nullsafety.ParametersNotNullByDefault;
@@ -18,6 +16,7 @@ import androidx.activity.result.ActivityResultLauncher;
 import androidx.annotation.Nullable;
 import androidx.annotation.RequiresApi;
 import androidx.annotation.StringRes;
+import androidx.appcompat.app.AlertDialog;
 import androidx.fragment.app.FragmentActivity;
 
 import static android.Manifest.permission.BLUETOOTH_ADVERTISE;
@@ -109,8 +108,8 @@ public class PermissionUtils {
 	}
 
 	public static void showLocationDialog(Context ctx, boolean forBluetooth) {
-		MaterialAlertDialogBuilder builder =
-				new MaterialAlertDialogBuilder(ctx, R.style.BriarDialogTheme);
+		AlertDialog.Builder builder =
+				new AlertDialog.Builder(ctx, R.style.BriarDialogTheme);
 		builder.setTitle(R.string.permission_location_setting_title);
 		if (forBluetooth) {
 			builder.setMessage(R.string.permission_location_setting_body);
@@ -137,8 +136,8 @@ public class PermissionUtils {
 
 	public static void showDenialDialog(FragmentActivity ctx,
 			@StringRes int title, @StringRes int body, Runnable onDenied) {
-		MaterialAlertDialogBuilder builder =
-				new MaterialAlertDialogBuilder(ctx, R.style.BriarDialogTheme);
+		AlertDialog.Builder builder =
+				new AlertDialog.Builder(ctx, R.style.BriarDialogTheme);
 		builder.setTitle(title);
 		builder.setMessage(body);
 		builder.setPositiveButton(R.string.ok, getGoToSettingsListener(ctx));
@@ -149,8 +148,8 @@ public class PermissionUtils {
 
 	public static void showRationale(FragmentActivity ctx, @StringRes int title,
 			@StringRes int body, @Nullable Runnable onOk) {
-		MaterialAlertDialogBuilder builder =
-				new MaterialAlertDialogBuilder(ctx, R.style.BriarDialogTheme);
+		AlertDialog.Builder builder =
+				new AlertDialog.Builder(ctx, R.style.BriarDialogTheme);
 		builder.setTitle(title);
 		builder.setMessage(body);
 		builder.setNeutralButton(R.string.continue_button, (dialog, which) -> {

briar-android/src/main/java/org/briarproject/briar/android/util/UiUtils.java

@@ -28,7 +28,6 @@ import android.view.inputmethod.InputMethodManager;
 import android.widget.TextView;
 import android.widget.Toast;
 
-import com.google.android.material.dialog.MaterialAlertDialogBuilder;
 import com.google.android.material.textfield.TextInputLayout;
 
 import org.briarproject.bramble.api.contact.Contact;
@@ -53,6 +52,7 @@ import androidx.annotation.ColorRes;
 import androidx.annotation.DrawableRes;
 import androidx.annotation.Nullable;
 import androidx.annotation.UiThread;
+import androidx.appcompat.app.AlertDialog;
 import androidx.core.content.ContextCompat;
 import androidx.core.hardware.fingerprint.FingerprintManagerCompat;
 import androidx.core.text.HtmlCompat;
@@ -92,6 +92,7 @@ import static android.view.WindowManager.LayoutParams.SOFT_INPUT_STATE_HIDDEN;
 import static android.view.inputmethod.EditorInfo.IME_NULL;
 import static android.view.inputmethod.InputMethodManager.SHOW_IMPLICIT;
 import static android.widget.Toast.LENGTH_LONG;
+import static androidx.appcompat.app.AppCompatDelegate.MODE_NIGHT_AUTO_TIME;
 import static androidx.appcompat.app.AppCompatDelegate.MODE_NIGHT_FOLLOW_SYSTEM;
 import static androidx.appcompat.app.AppCompatDelegate.MODE_NIGHT_NO;
 import static androidx.appcompat.app.AppCompatDelegate.MODE_NIGHT_YES;
@@ -322,7 +323,7 @@ public class UiUtils {
 	}
 
 	public static void showOnboardingDialog(Context ctx, String text) {
-		new MaterialAlertDialogBuilder(ctx, R.style.OnboardingDialogTheme)
+		new AlertDialog.Builder(ctx, R.style.OnboardingDialogTheme)
 				.setMessage(text)
 				.setNeutralButton(R.string.got_it,
 						(dialog, which) -> dialog.cancel())
@@ -348,7 +349,12 @@ public class UiUtils {
 		} else if (theme
 				.equals(ctx.getString(R.string.pref_theme_dark_value))) {
 			setDefaultNightMode(MODE_NIGHT_YES);
-		} else {
+		} else if (theme
+				.equals(ctx.getString(R.string.pref_theme_auto_value))) {
+			// TODO remove AUTO-setting as it is deprecated
+			setDefaultNightMode(MODE_NIGHT_AUTO_TIME);
+		} else if (theme
+				.equals(ctx.getString(R.string.pref_theme_system_value))) {
 			setDefaultNightMode(MODE_NIGHT_FOLLOW_SYSTEM);
 		}
 	}
@@ -398,8 +404,8 @@ public class UiUtils {
 
 	public static void startDevReportActivity(Context ctx,
 			Class<? extends FragmentActivity> activity, @Nullable Throwable t,
-			@Nullable Long appStartTime, @Nullable byte[] logKey,
-			@Nullable String initialComment) {
+			@Nullable Long appStartTime, @Nullable byte[] logKey, @Nullable
+			String initialComment) {
 		// Collect memory stats from the current process, not the crash
 		// reporter process
 		ActivityManager am =

briar-android/src/main/java/org/briarproject/briar/android/view/BriarButton.java

@@ -8,13 +8,12 @@ import android.widget.Button;
 import android.widget.FrameLayout;
 import android.widget.ProgressBar;
 
-import com.google.android.material.button.MaterialButton;
-
 import org.briarproject.briar.R;
 import org.briarproject.nullsafety.NotNullByDefault;
 
 import androidx.annotation.Nullable;
 import androidx.appcompat.view.ContextThemeWrapper;
+import androidx.appcompat.widget.AppCompatButton;
 
 import static android.content.Context.LAYOUT_INFLATER_SERVICE;
 import static androidx.transition.TransitionManager.beginDelayedTransition;
@@ -48,7 +47,8 @@ public class BriarButton extends FrameLayout {
 		attributes.recycle();
 
 		ContextThemeWrapper wrapper = new ContextThemeWrapper(context, style);
-		button = new MaterialButton(wrapper, null, style);
+		button = isInEditMode() ? new AppCompatButton(context) :
+				new AppCompatButton(wrapper, null, style);
 		button.setText(text);
 		addView(button);
 		progressBar = findViewById(R.id.briar_button_progress_bar);

briar-android/src/main/java/org/briarproject/briar/android/view/SnackbarAwareBehavior.java

@@ -1,6 +1,5 @@
 package org.briarproject.briar.android.view;
 
-import android.annotation.SuppressLint;
 import android.content.Context;
 import android.util.AttributeSet;
 import android.view.View;
@@ -39,7 +38,6 @@ public class SnackbarAwareBehavior<V extends View> extends Behavior<V> {
 		setMargin(child, 0);
 	}
 
-	@SuppressLint("RestrictedApi")
 	@Override
 	public boolean layoutDependsOn(CoordinatorLayout parent,
 			V child, View dependency) {