Added a connection registry to avoid creating redundant connections.

api/net/sf/briar/api/plugins/Plugin.java

@@ -1,7 +1,9 @@
 package net.sf.briar.api.plugins;
 
 import java.io.IOException;
+import java.util.Collection;
 
+import net.sf.briar.api.ContactId;
 import net.sf.briar.api.protocol.TransportId;
 
 public interface Plugin {
@@ -28,10 +30,11 @@ public interface Plugin {
 	long getPollingInterval();
 
 	/**
-	 * Attempts to establish connections to all contacts, passing any created
-	 * connections to the callback.
+	 * Attempts to establish connections to contacts, passing any created
+	 * connections to the callback. To avoid creating redundant connections,
+	 * the plugin may exclude the given contacts from polling.
 	 */
-	void poll();
+	void poll(Collection<ContactId> connected);
 
 	/** Returns true if the plugin supports exchanging invitations. */
 	boolean supportsInvitations();

api/net/sf/briar/api/protocol/batch/BatchConnectionFactory.java

@@ -1,6 +1,7 @@
 package net.sf.briar.api.protocol.batch;
 
 import net.sf.briar.api.ContactId;
+import net.sf.briar.api.protocol.TransportId;
 import net.sf.briar.api.protocol.TransportIndex;
 import net.sf.briar.api.transport.BatchTransportReader;
 import net.sf.briar.api.transport.BatchTransportWriter;
@@ -8,9 +9,9 @@ import net.sf.briar.api.transport.ConnectionContext;
 
 public interface BatchConnectionFactory {
 
-	void createIncomingConnection(ConnectionContext ctx,
+	void createIncomingConnection(ConnectionContext ctx, TransportId t,
 			BatchTransportReader r, byte[] tag);
 
-	void createOutgoingConnection(ContactId c, TransportIndex i,
+	void createOutgoingConnection(ContactId c, TransportId t, TransportIndex i,
 			BatchTransportWriter w);
 }

api/net/sf/briar/api/protocol/stream/StreamConnectionFactory.java

@@ -1,15 +1,16 @@
 package net.sf.briar.api.protocol.stream;
 
 import net.sf.briar.api.ContactId;
+import net.sf.briar.api.protocol.TransportId;
 import net.sf.briar.api.protocol.TransportIndex;
 import net.sf.briar.api.transport.ConnectionContext;
 import net.sf.briar.api.transport.StreamTransportConnection;
 
 public interface StreamConnectionFactory {
 
-	void createIncomingConnection(ConnectionContext ctx,
+	void createIncomingConnection(ConnectionContext ctx, TransportId t,
 			StreamTransportConnection s, byte[] tag);
 
-	void createOutgoingConnection(ContactId c, TransportIndex i,
+	void createOutgoingConnection(ContactId c, TransportId t, TransportIndex i,
 			StreamTransportConnection s);
 }

api/net/sf/briar/api/transport/ConnectionDispatcher.java

@@ -8,10 +8,11 @@ public interface ConnectionDispatcher {
 
 	void dispatchReader(TransportId t, BatchTransportReader r);
 
-	void dispatchWriter(ContactId c, TransportIndex i, BatchTransportWriter w);
+	void dispatchWriter(ContactId c, TransportId t, TransportIndex i,
+			BatchTransportWriter w);
 
 	void dispatchIncomingConnection(TransportId t, StreamTransportConnection s);
 
-	void dispatchOutgoingConnection(ContactId c, TransportIndex i,
-			StreamTransportConnection s);
+	void dispatchOutgoingConnection(ContactId c, TransportId t,
+			TransportIndex i, StreamTransportConnection s);
 }

api/net/sf/briar/api/transport/ConnectionRegistry.java

@@ -0,0 +1,18 @@
+package net.sf.briar.api.transport;
+
+import java.util.Collection;
+
+import net.sf.briar.api.ContactId;
+import net.sf.briar.api.protocol.TransportId;
+
+/**
+ * Keeps track of which contacts are currently connected by which transports.
+ */
+public interface ConnectionRegistry {
+
+	void registerConnection(ContactId c, TransportId t);
+
+	void unregisterConnection(ContactId c, TransportId t);
+
+	Collection<ContactId> getConnectedContacts(TransportId t);
+}

components/net/sf/briar/plugins/PluginManagerImpl.java

@@ -51,8 +51,8 @@ class PluginManagerImpl implements PluginManager {
 		"net.sf.briar.plugins.socket.SimpleSocketPluginFactory"
 	};
 
-	private final DatabaseComponent db;
 	private final Executor pluginExecutor;
+	private final DatabaseComponent db;
 	private final Poller poller;
 	private final ConnectionDispatcher dispatcher;
 	private final UiCallback uiCallback;
@@ -60,11 +60,11 @@ class PluginManagerImpl implements PluginManager {
 	private final List<StreamPlugin> streamPlugins; // Locking: this
 
 	@Inject
-	PluginManagerImpl(DatabaseComponent db,
-			@PluginExecutor Executor pluginExecutor, Poller poller,
+	PluginManagerImpl(@PluginExecutor Executor pluginExecutor,
+			DatabaseComponent db, Poller poller,
 			ConnectionDispatcher dispatcher, UiCallback uiCallback) {
-		this.db = db;
 		this.pluginExecutor = pluginExecutor;
+		this.db = db;
 		this.poller = poller;
 		this.dispatcher = dispatcher;
 		this.uiCallback = uiCallback;
@@ -295,7 +295,7 @@ class PluginManagerImpl implements PluginManager {
 
 		public void writerCreated(ContactId c, BatchTransportWriter w) {
 			assert index != null;
-			dispatcher.dispatchWriter(c, index, w);
+			dispatcher.dispatchWriter(c, id, index, w);
 		}
 	}
 
@@ -310,7 +310,7 @@ class PluginManagerImpl implements PluginManager {
 		public void outgoingConnectionCreated(ContactId c,
 				StreamTransportConnection s) {
 			assert index != null;
-			dispatcher.dispatchOutgoingConnection(c, index, s);
+			dispatcher.dispatchOutgoingConnection(c, id, index, s);
 		}
 	}
 }

components/net/sf/briar/plugins/PollerImpl.java

@@ -6,14 +6,25 @@ import java.util.TreeSet;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 
+import net.sf.briar.api.ContactId;
 import net.sf.briar.api.plugins.Plugin;
+import net.sf.briar.api.transport.ConnectionRegistry;
+
+import com.google.inject.Inject;
 
 class PollerImpl implements Poller, Runnable {
 
 	private static final Logger LOG =
 		Logger.getLogger(PollerImpl.class.getName());
 
-	private final SortedSet<PollTime> pollTimes = new TreeSet<PollTime>();
+	private final ConnectionRegistry connRegistry;
+	private final SortedSet<PollTime> pollTimes;
+
+	@Inject
+	PollerImpl(ConnectionRegistry connRegistry) {
+		this.connRegistry = connRegistry;
+		pollTimes = new TreeSet<PollTime>();
+	}
 
 	public synchronized void startPolling(Collection<Plugin> plugins) {
 		for(Plugin plugin : plugins) schedule(plugin);
@@ -41,8 +52,10 @@ class PollerImpl implements Poller, Runnable {
 				long now = System.currentTimeMillis();
 				if(now <= p.time) {
 					pollTimes.remove(p);
+					Collection<ContactId> connected =
+						connRegistry.getConnectedContacts(p.plugin.getId());
 					try {
-						p.plugin.poll();
+						p.plugin.poll(connected);
 					} catch(RuntimeException e) {
 						if(LOG.isLoggable(Level.WARNING))
 							LOG.warning("Plugin " + p.plugin.getId() + " " + e);

components/net/sf/briar/plugins/bluetooth/BluetoothPlugin.java

@@ -1,6 +1,7 @@
 package net.sf.briar.plugins.bluetooth;
 
 import java.io.IOException;
+import java.util.Collection;
 import java.util.Collections;
 import java.util.HashMap;
 import java.util.Map;
@@ -178,18 +179,18 @@ class BluetoothPlugin implements StreamPlugin {
 		return pollingInterval;
 	}
 
-	public void poll() {
+	public void poll(final Collection<ContactId> connected) {
 		synchronized(this) {
 			if(!running) return;
 		}
 		pluginExecutor.execute(new Runnable() {
 			public void run() {
-				connectAndCallBack();
+				connectAndCallBack(connected);
 			}
 		});
 	}
 
-	private void connectAndCallBack() {
+	private void connectAndCallBack(Collection<ContactId> connected) {
 		synchronized(this) {
 			if(!running) return;
 		}
@@ -198,6 +199,8 @@ class BluetoothPlugin implements StreamPlugin {
 		Map<ContactId, String> discovered = discoverContactUrls(remote);
 		for(Entry<ContactId, String> e : discovered.entrySet()) {
 			ContactId c = e.getKey();
+			// Don't create redundant connections
+			if(connected.contains(c)) continue;
 			String url = e.getValue();
 			StreamTransportConnection s = connect(c, url);
 			if(s != null) callback.outgoingConnectionCreated(c, s);

components/net/sf/briar/plugins/file/RemovableDrivePlugin.java

@@ -10,6 +10,7 @@ import java.util.concurrent.Executor;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 
+import net.sf.briar.api.ContactId;
 import net.sf.briar.api.plugins.BatchPluginCallback;
 import net.sf.briar.api.plugins.PluginExecutor;
 import net.sf.briar.api.protocol.TransportId;
@@ -59,7 +60,7 @@ implements RemovableDriveMonitor.Callback {
 		throw new UnsupportedOperationException();
 	}
 
-	public void poll() {
+	public void poll(Collection<ContactId> connected) {
 		throw new UnsupportedOperationException();
 	}
 

components/net/sf/briar/plugins/socket/SimpleSocketPlugin.java

@@ -31,26 +31,15 @@ class SimpleSocketPlugin extends SocketPlugin {
 	private static final Logger LOG =
 		Logger.getLogger(SimpleSocketPlugin.class.getName());
 
-	private final long pollingInterval;
-
 	SimpleSocketPlugin(@PluginExecutor Executor pluginExecutor,
 			StreamPluginCallback callback, long pollingInterval) {
-		super(pluginExecutor, callback);
-		this.pollingInterval = pollingInterval;
+		super(pluginExecutor, callback, pollingInterval);
 	}
 
 	public TransportId getId() {
 		return id;
 	}
 
-	public boolean shouldPoll() {
-		return true;
-	}
-
-	public long getPollingInterval() {
-		return pollingInterval;
-	}
-
 	@Override
 	protected Socket createClientSocket() throws IOException {
 		assert running;

components/net/sf/briar/plugins/socket/SocketPlugin.java

@@ -4,6 +4,7 @@ import java.io.IOException;
 import java.net.ServerSocket;
 import java.net.Socket;
 import java.net.SocketAddress;
+import java.util.Collection;
 import java.util.Map;
 import java.util.concurrent.Executor;
 import java.util.logging.Level;
@@ -24,6 +25,8 @@ abstract class SocketPlugin implements StreamPlugin {
 	protected final Executor pluginExecutor;
 	protected final StreamPluginCallback callback;
 
+	private final long pollingInterval;
+
 	protected boolean running = false; // Locking: this
 	protected ServerSocket socket = null; // Locking: this
 
@@ -35,9 +38,10 @@ abstract class SocketPlugin implements StreamPlugin {
 	protected abstract SocketAddress getRemoteSocketAddress(ContactId c);
 
 	protected SocketPlugin(@PluginExecutor Executor pluginExecutor,
-			StreamPluginCallback callback) {
+			StreamPluginCallback callback, long pollingInterval) {
 		this.pluginExecutor = pluginExecutor;
 		this.callback = callback;
+		this.pollingInterval = pollingInterval;
 	}
 
 	public void start() throws IOException {
@@ -115,13 +119,22 @@ abstract class SocketPlugin implements StreamPlugin {
 		}
 	}
 
-	public void poll() {
+	public boolean shouldPoll() {
+		return true;
+	}
+
+	public long getPollingInterval() {
+		return pollingInterval;
+	}
+
+	public void poll(Collection<ContactId> connected) {
 		synchronized(this) {
 			if(!running) return;
 		}
 		Map<ContactId, TransportProperties> remote =
 			callback.getRemoteProperties();
 		for(final ContactId c : remote.keySet()) {
+			if(connected.contains(c)) continue;
 			pluginExecutor.execute(new Runnable() {
 				public void run() {
 					connectAndCallBack(c);

components/net/sf/briar/protocol/batch/BatchConnectionFactoryImpl.java

@@ -7,6 +7,7 @@ import net.sf.briar.api.db.DatabaseComponent;
 import net.sf.briar.api.db.DatabaseExecutor;
 import net.sf.briar.api.protocol.ProtocolReaderFactory;
 import net.sf.briar.api.protocol.ProtocolWriterFactory;
+import net.sf.briar.api.protocol.TransportId;
 import net.sf.briar.api.protocol.TransportIndex;
 import net.sf.briar.api.protocol.VerificationExecutor;
 import net.sf.briar.api.protocol.batch.BatchConnectionFactory;
@@ -14,6 +15,7 @@ import net.sf.briar.api.transport.BatchTransportReader;
 import net.sf.briar.api.transport.BatchTransportWriter;
 import net.sf.briar.api.transport.ConnectionContext;
 import net.sf.briar.api.transport.ConnectionReaderFactory;
+import net.sf.briar.api.transport.ConnectionRegistry;
 import net.sf.briar.api.transport.ConnectionWriterFactory;
 
 import com.google.inject.Inject;
@@ -22,6 +24,7 @@ class BatchConnectionFactoryImpl implements BatchConnectionFactory {
 
 	private final Executor dbExecutor, verificationExecutor;
 	private final DatabaseComponent db;
+	private final ConnectionRegistry connRegistry;
 	private final ConnectionReaderFactory connReaderFactory;
 	private final ConnectionWriterFactory connWriterFactory;
 	private final ProtocolReaderFactory protoReaderFactory;
@@ -30,24 +33,26 @@ class BatchConnectionFactoryImpl implements BatchConnectionFactory {
 	@Inject
 	BatchConnectionFactoryImpl(@DatabaseExecutor Executor dbExecutor,
 			@VerificationExecutor Executor verificationExecutor,
-			DatabaseComponent db, ConnectionReaderFactory connReaderFactory,
+			DatabaseComponent db, ConnectionRegistry connRegistry,
+			ConnectionReaderFactory connReaderFactory,
 			ConnectionWriterFactory connWriterFactory,
 			ProtocolReaderFactory protoReaderFactory,
 			ProtocolWriterFactory protoWriterFactory) {
 		this.dbExecutor = dbExecutor;
 		this.verificationExecutor = verificationExecutor;
 		this.db = db;
+		this.connRegistry = connRegistry;
 		this.connReaderFactory = connReaderFactory;
 		this.connWriterFactory = connWriterFactory;
 		this.protoReaderFactory = protoReaderFactory;
 		this.protoWriterFactory = protoWriterFactory;
 	}
 
-	public void createIncomingConnection(ConnectionContext ctx,
+	public void createIncomingConnection(ConnectionContext ctx, TransportId t,
 			BatchTransportReader r, byte[] tag) {
 		final IncomingBatchConnection conn = new IncomingBatchConnection(
-				dbExecutor, verificationExecutor, db, connReaderFactory,
-				protoReaderFactory, ctx, r, tag);
+				dbExecutor, verificationExecutor, db, connRegistry,
+				connReaderFactory, protoReaderFactory, ctx, t, r, tag);
 		Runnable read = new Runnable() {
 			public void run() {
 				conn.read();
@@ -56,10 +61,11 @@ class BatchConnectionFactoryImpl implements BatchConnectionFactory {
 		new Thread(read).start();
 	}
 
-	public void createOutgoingConnection(ContactId c, TransportIndex i,
-			BatchTransportWriter w) {
+	public void createOutgoingConnection(ContactId c, TransportId t,
+			TransportIndex i, BatchTransportWriter w) {
 		final OutgoingBatchConnection conn = new OutgoingBatchConnection(db,
-				connWriterFactory, protoWriterFactory, c, i, w);
+				connRegistry, connWriterFactory, protoWriterFactory,
+				c, t, i, w);
 		Runnable write = new Runnable() {
 			public void run() {
 				conn.write();

components/net/sf/briar/protocol/batch/IncomingBatchConnection.java

@@ -17,6 +17,7 @@ import net.sf.briar.api.protocol.Batch;
 import net.sf.briar.api.protocol.ProtocolReader;
 import net.sf.briar.api.protocol.ProtocolReaderFactory;
 import net.sf.briar.api.protocol.SubscriptionUpdate;
+import net.sf.briar.api.protocol.TransportId;
 import net.sf.briar.api.protocol.TransportUpdate;
 import net.sf.briar.api.protocol.UnverifiedBatch;
 import net.sf.briar.api.protocol.VerificationExecutor;
@@ -24,6 +25,7 @@ import net.sf.briar.api.transport.BatchTransportReader;
 import net.sf.briar.api.transport.ConnectionContext;
 import net.sf.briar.api.transport.ConnectionReader;
 import net.sf.briar.api.transport.ConnectionReaderFactory;
+import net.sf.briar.api.transport.ConnectionRegistry;
 
 class IncomingBatchConnection {
 
@@ -31,31 +33,38 @@ class IncomingBatchConnection {
 		Logger.getLogger(IncomingBatchConnection.class.getName());
 
 	private final Executor dbExecutor, verificationExecutor;
-	private final ConnectionReaderFactory connFactory;
 	private final DatabaseComponent db;
+	private final ConnectionRegistry connRegistry;
+	private final ConnectionReaderFactory connFactory;
 	private final ProtocolReaderFactory protoFactory;
 	private final ConnectionContext ctx;
+	private final TransportId transportId;
 	private final BatchTransportReader transport;
 	private final byte[] tag;
 	private final ContactId contactId;
 
 	IncomingBatchConnection(@DatabaseExecutor Executor dbExecutor,
 			@VerificationExecutor Executor verificationExecutor,
-			DatabaseComponent db, ConnectionReaderFactory connFactory,
+			DatabaseComponent db, ConnectionRegistry connRegistry,
+			ConnectionReaderFactory connFactory,
 			ProtocolReaderFactory protoFactory, ConnectionContext ctx,
-			BatchTransportReader transport, byte[] tag) {
+			TransportId transportId, BatchTransportReader transport,
+			byte[] tag) {
 		this.dbExecutor = dbExecutor;
 		this.verificationExecutor = verificationExecutor;
-		this.connFactory = connFactory;
 		this.db = db;
+		this.connRegistry = connRegistry;
+		this.connFactory = connFactory;
 		this.protoFactory = protoFactory;
 		this.ctx = ctx;
+		this.transportId = transportId;
 		this.transport = transport;
 		this.tag = tag;
 		contactId = ctx.getContactId();
 	}
 
 	void read() {
+		connRegistry.registerConnection(contactId, transportId);
 		try {
 			ConnectionReader conn = connFactory.createConnectionReader(
 					transport.getInputStream(), ctx.getSecret(), tag);
@@ -83,6 +92,8 @@ class IncomingBatchConnection {
 		} catch(IOException e) {
 			if(LOG.isLoggable(Level.WARNING)) LOG.warning(e.toString());
 			transport.dispose(true, true);
+		} finally {
+			connRegistry.unregisterConnection(contactId, transportId);
 		}
 	}
 

components/net/sf/briar/protocol/batch/OutgoingBatchConnection.java

@@ -16,10 +16,12 @@ import net.sf.briar.api.protocol.ProtocolWriter;
 import net.sf.briar.api.protocol.ProtocolWriterFactory;
 import net.sf.briar.api.protocol.RawBatch;
 import net.sf.briar.api.protocol.SubscriptionUpdate;
+import net.sf.briar.api.protocol.TransportId;
 import net.sf.briar.api.protocol.TransportIndex;
 import net.sf.briar.api.protocol.TransportUpdate;
 import net.sf.briar.api.transport.BatchTransportWriter;
 import net.sf.briar.api.transport.ConnectionContext;
+import net.sf.briar.api.transport.ConnectionRegistry;
 import net.sf.briar.api.transport.ConnectionWriter;
 import net.sf.briar.api.transport.ConnectionWriterFactory;
 
@@ -29,25 +31,32 @@ class OutgoingBatchConnection {
 		Logger.getLogger(OutgoingBatchConnection.class.getName());
 
 	private final DatabaseComponent db;
+	private final ConnectionRegistry connRegistry;
 	private final ConnectionWriterFactory connFactory;
 	private final ProtocolWriterFactory protoFactory;
 	private final ContactId contactId;
+	private final TransportId transportId;
 	private final TransportIndex transportIndex;
 	private final BatchTransportWriter transport;
 
 	OutgoingBatchConnection(DatabaseComponent db,
+			ConnectionRegistry connRegistry,
 			ConnectionWriterFactory connFactory,
 			ProtocolWriterFactory protoFactory, ContactId contactId,
-			TransportIndex transportIndex, BatchTransportWriter transport) {
+			TransportId transportId, TransportIndex transportIndex,
+			BatchTransportWriter transport) {
 		this.db = db;
+		this.connRegistry = connRegistry;
 		this.connFactory = connFactory;
 		this.protoFactory = protoFactory;
 		this.contactId = contactId;
+		this.transportId = transportId;
 		this.transportIndex = transportIndex;
 		this.transport = transport;
 	}
 
 	void write() {
+		connRegistry.registerConnection(contactId, transportId);
 		try {
 			ConnectionContext ctx = db.getConnectionContext(contactId,
 					transportIndex);
@@ -97,6 +106,8 @@ class OutgoingBatchConnection {
 		} catch(IOException e) {
 			if(LOG.isLoggable(Level.WARNING)) LOG.warning(e.toString());
 			transport.dispose(true);
+		} finally {
+			connRegistry.unregisterConnection(contactId, transportId);
 		}
 	}
 }

components/net/sf/briar/protocol/stream/IncomingStreamConnection.java

@@ -7,10 +7,12 @@ import net.sf.briar.api.db.DatabaseComponent;
 import net.sf.briar.api.db.DatabaseExecutor;
 import net.sf.briar.api.protocol.ProtocolReaderFactory;
 import net.sf.briar.api.protocol.ProtocolWriterFactory;
+import net.sf.briar.api.protocol.TransportId;
 import net.sf.briar.api.protocol.VerificationExecutor;
 import net.sf.briar.api.transport.ConnectionContext;
 import net.sf.briar.api.transport.ConnectionReader;
 import net.sf.briar.api.transport.ConnectionReaderFactory;
+import net.sf.briar.api.transport.ConnectionRegistry;
 import net.sf.briar.api.transport.ConnectionWriter;
 import net.sf.briar.api.transport.ConnectionWriterFactory;
 import net.sf.briar.api.transport.StreamTransportConnection;
@@ -22,15 +24,16 @@ class IncomingStreamConnection extends StreamConnection {
 
 	IncomingStreamConnection(@DatabaseExecutor Executor dbExecutor,
 			@VerificationExecutor Executor verificationExecutor,
-			DatabaseComponent db, ConnectionReaderFactory connReaderFactory,
+			DatabaseComponent db, ConnectionRegistry connRegistry,
+			ConnectionReaderFactory connReaderFactory,
 			ConnectionWriterFactory connWriterFactory,
 			ProtocolReaderFactory protoReaderFactory,
 			ProtocolWriterFactory protoWriterFactory,
-			ConnectionContext ctx, StreamTransportConnection transport,
-			byte[] tag) {
-		super(dbExecutor, verificationExecutor, db, connReaderFactory,
-				connWriterFactory, protoReaderFactory, protoWriterFactory,
-				ctx.getContactId(), transport);
+			ConnectionContext ctx, TransportId transportId,
+			StreamTransportConnection transport, byte[] tag) {
+		super(dbExecutor, verificationExecutor, db, connRegistry,
+				connReaderFactory, connWriterFactory, protoReaderFactory,
+				protoWriterFactory, ctx.getContactId(), transportId, transport);
 		this.ctx = ctx;
 		this.tag = tag;
 	}

components/net/sf/briar/protocol/stream/OutgoingStreamConnection.java

@@ -9,11 +9,13 @@ import net.sf.briar.api.db.DatabaseExecutor;
 import net.sf.briar.api.db.DbException;
 import net.sf.briar.api.protocol.ProtocolReaderFactory;
 import net.sf.briar.api.protocol.ProtocolWriterFactory;
+import net.sf.briar.api.protocol.TransportId;
 import net.sf.briar.api.protocol.TransportIndex;
 import net.sf.briar.api.protocol.VerificationExecutor;
 import net.sf.briar.api.transport.ConnectionContext;
 import net.sf.briar.api.transport.ConnectionReader;
 import net.sf.briar.api.transport.ConnectionReaderFactory;
+import net.sf.briar.api.transport.ConnectionRegistry;
 import net.sf.briar.api.transport.ConnectionWriter;
 import net.sf.briar.api.transport.ConnectionWriterFactory;
 import net.sf.briar.api.transport.StreamTransportConnection;
@@ -26,15 +28,16 @@ class OutgoingStreamConnection extends StreamConnection {
 
 	OutgoingStreamConnection(@DatabaseExecutor Executor dbExecutor,
 			@VerificationExecutor Executor verificationExecutor,
-			DatabaseComponent db, ConnectionReaderFactory connReaderFactory,
+			DatabaseComponent db, ConnectionRegistry connRegistry,
+			ConnectionReaderFactory connReaderFactory,
 			ConnectionWriterFactory connWriterFactory,
 			ProtocolReaderFactory protoReaderFactory,
 			ProtocolWriterFactory protoWriterFactory, ContactId contactId,
-			TransportIndex transportIndex,
+			TransportId transportId, TransportIndex transportIndex,
 			StreamTransportConnection transport) {
-		super(dbExecutor, verificationExecutor, db, connReaderFactory,
-				connWriterFactory, protoReaderFactory, protoWriterFactory,
-				contactId, transport);
+		super(dbExecutor, verificationExecutor, db, connRegistry,
+				connReaderFactory, connWriterFactory, protoReaderFactory,
+				protoWriterFactory, contactId, transportId, transport);
 		this.transportIndex = transportIndex;
 	}
 

components/net/sf/briar/protocol/stream/StreamConnection.java

@@ -40,11 +40,13 @@ import net.sf.briar.api.protocol.ProtocolWriterFactory;
 import net.sf.briar.api.protocol.RawBatch;
 import net.sf.briar.api.protocol.Request;
 import net.sf.briar.api.protocol.SubscriptionUpdate;
+import net.sf.briar.api.protocol.TransportId;
 import net.sf.briar.api.protocol.TransportUpdate;
 import net.sf.briar.api.protocol.UnverifiedBatch;
 import net.sf.briar.api.protocol.VerificationExecutor;
 import net.sf.briar.api.transport.ConnectionReader;
 import net.sf.briar.api.transport.ConnectionReaderFactory;
+import net.sf.briar.api.transport.ConnectionRegistry;
 import net.sf.briar.api.transport.ConnectionWriter;
 import net.sf.briar.api.transport.ConnectionWriterFactory;
 import net.sf.briar.api.transport.StreamTransportConnection;
@@ -59,11 +61,13 @@ abstract class StreamConnection implements DatabaseListener {
 	};
 
 	protected final DatabaseComponent db;
+	protected final ConnectionRegistry connRegistry;
 	protected final ConnectionReaderFactory connReaderFactory;
 	protected final ConnectionWriterFactory connWriterFactory;
 	protected final ProtocolReaderFactory protoReaderFactory;
 	protected final ProtocolWriterFactory protoWriterFactory;
 	protected final ContactId contactId;
+	protected final TransportId transportId;
 	protected final StreamTransportConnection transport;
 
 	private final Executor dbExecutor, verificationExecutor;
@@ -76,19 +80,22 @@ abstract class StreamConnection implements DatabaseListener {
 
 	StreamConnection(@DatabaseExecutor Executor dbExecutor,
 			@VerificationExecutor Executor verificationExecutor,
-			DatabaseComponent db, ConnectionReaderFactory connReaderFactory,
+			DatabaseComponent db, ConnectionRegistry connRegistry,
+			ConnectionReaderFactory connReaderFactory,
 			ConnectionWriterFactory connWriterFactory,
 			ProtocolReaderFactory protoReaderFactory,
 			ProtocolWriterFactory protoWriterFactory, ContactId contactId,
-			StreamTransportConnection transport) {
+			TransportId transportId, StreamTransportConnection transport) {
 		this.dbExecutor = dbExecutor;
 		this.verificationExecutor = verificationExecutor;
 		this.db = db;
+		this.connRegistry = connRegistry;
 		this.connReaderFactory = connReaderFactory;
 		this.connWriterFactory = connWriterFactory;
 		this.protoReaderFactory = protoReaderFactory;
 		this.protoWriterFactory = protoWriterFactory;
 		this.contactId = contactId;
+		this.transportId = transportId;
 		this.transport = transport;
 		canSendOffer = new AtomicBoolean(false);
 		disposed = new AtomicBoolean(false);
@@ -188,8 +195,9 @@ abstract class StreamConnection implements DatabaseListener {
 	}
 
 	void write() {
+		connRegistry.registerConnection(contactId, transportId);
+		db.addListener(this);
 		try {
-			db.addListener(this);
 			OutputStream out = createConnectionWriter().getOutputStream();
 			writer = protoWriterFactory.createProtocolWriter(out,
 					transport.shouldFlush());
@@ -217,6 +225,7 @@ abstract class StreamConnection implements DatabaseListener {
 			if(LOG.isLoggable(Level.WARNING)) LOG.warning(e.toString());
 			if(!disposed.getAndSet(true)) transport.dispose(true, true);
 		} finally {
+			connRegistry.unregisterConnection(contactId, transportId);
 			db.removeListener(this);
 		}
 	}

components/net/sf/briar/protocol/stream/StreamConnectionFactoryImpl.java

@@ -7,11 +7,13 @@ import net.sf.briar.api.db.DatabaseComponent;
 import net.sf.briar.api.db.DatabaseExecutor;
 import net.sf.briar.api.protocol.ProtocolReaderFactory;
 import net.sf.briar.api.protocol.ProtocolWriterFactory;
+import net.sf.briar.api.protocol.TransportId;
 import net.sf.briar.api.protocol.TransportIndex;
 import net.sf.briar.api.protocol.VerificationExecutor;
 import net.sf.briar.api.protocol.stream.StreamConnectionFactory;
 import net.sf.briar.api.transport.ConnectionContext;
 import net.sf.briar.api.transport.ConnectionReaderFactory;
+import net.sf.briar.api.transport.ConnectionRegistry;
 import net.sf.briar.api.transport.ConnectionWriterFactory;
 import net.sf.briar.api.transport.StreamTransportConnection;
 
@@ -21,6 +23,7 @@ class StreamConnectionFactoryImpl implements StreamConnectionFactory {
 
 	private final Executor dbExecutor, verificationExecutor;
 	private final DatabaseComponent db;
+	private final ConnectionRegistry connRegistry;
 	private final ConnectionReaderFactory connReaderFactory;
 	private final ConnectionWriterFactory connWriterFactory;
 	private final ProtocolReaderFactory protoReaderFactory;
@@ -29,24 +32,27 @@ class StreamConnectionFactoryImpl implements StreamConnectionFactory {
 	@Inject
 	StreamConnectionFactoryImpl(@DatabaseExecutor Executor dbExecutor,
 			@VerificationExecutor Executor verificationExecutor,
-			DatabaseComponent db, ConnectionReaderFactory connReaderFactory,
+			DatabaseComponent db, ConnectionRegistry connRegistry,
+			ConnectionReaderFactory connReaderFactory,
 			ConnectionWriterFactory connWriterFactory,
 			ProtocolReaderFactory protoReaderFactory,
 			ProtocolWriterFactory protoWriterFactory) {
 		this.dbExecutor = dbExecutor;
 		this.verificationExecutor = verificationExecutor;
 		this.db = db;
+		this.connRegistry = connRegistry;
 		this.connReaderFactory = connReaderFactory;
 		this.connWriterFactory = connWriterFactory;
 		this.protoReaderFactory = protoReaderFactory;
 		this.protoWriterFactory = protoWriterFactory;
 	}
 
-	public void createIncomingConnection(ConnectionContext ctx,
+	public void createIncomingConnection(ConnectionContext ctx, TransportId t,
 			StreamTransportConnection s, byte[] tag) {
 		final StreamConnection conn = new IncomingStreamConnection(dbExecutor,
-				verificationExecutor, db, connReaderFactory, connWriterFactory,
-				protoReaderFactory, protoWriterFactory, ctx, s, tag);
+				verificationExecutor, db, connRegistry, connReaderFactory,
+				connWriterFactory, protoReaderFactory, protoWriterFactory,
+				ctx, t, s, tag);
 		Runnable write = new Runnable() {
 			public void run() {
 				conn.write();
@@ -61,11 +67,12 @@ class StreamConnectionFactoryImpl implements StreamConnectionFactory {
 		new Thread(read).start();
 	}
 
-	public void createOutgoingConnection(ContactId c, TransportIndex i,
-			StreamTransportConnection s) {
+	public void createOutgoingConnection(ContactId c, TransportId t,
+			TransportIndex i, StreamTransportConnection s) {
 		final StreamConnection conn = new OutgoingStreamConnection(dbExecutor,
-				verificationExecutor, db, connReaderFactory, connWriterFactory,
-				protoReaderFactory, protoWriterFactory, c, i, s);
+				verificationExecutor, db, connRegistry, connReaderFactory,
+				connWriterFactory, protoReaderFactory, protoWriterFactory,
+				c, t, i, s);
 		Runnable write = new Runnable() {
 			public void run() {
 				conn.write();

components/net/sf/briar/transport/ConnectionDispatcherImpl.java

@@ -49,9 +49,9 @@ class ConnectionDispatcherImpl implements ConnectionDispatcher {
 		executor.execute(new DispatchBatchConnection(t, r));
 	}
 
-	public void dispatchWriter(ContactId c, TransportIndex i,
+	public void dispatchWriter(ContactId c, TransportId t, TransportIndex i,
 			BatchTransportWriter w) {
-		batchConnFactory.createOutgoingConnection(c, i, w);
+		batchConnFactory.createOutgoingConnection(c, t, i, w);
 	}
 
 	public void dispatchIncomingConnection(TransportId t,
@@ -59,9 +59,9 @@ class ConnectionDispatcherImpl implements ConnectionDispatcher {
 		executor.execute(new DispatchStreamConnection(t, s));
 	}
 
-	public void dispatchOutgoingConnection(ContactId c, TransportIndex i,
-			StreamTransportConnection s) {
-		streamConnFactory.createOutgoingConnection(c, i, s);
+	public void dispatchOutgoingConnection(ContactId c, TransportId t,
+			TransportIndex i, StreamTransportConnection s) {
+		streamConnFactory.createOutgoingConnection(c, t, i, s);
 	}
 
 	private byte[] readTag(InputStream in) throws IOException {
@@ -92,8 +92,8 @@ class ConnectionDispatcherImpl implements ConnectionDispatcher {
 				ConnectionContext ctx = recogniser.acceptConnection(transportId,
 						tag);
 				if(ctx == null) transport.dispose(false, false);
-				else batchConnFactory.createIncomingConnection(ctx, transport,
-						tag);
+				else batchConnFactory.createIncomingConnection(ctx, transportId,
+						transport, tag);
 			} catch(DbException e) {
 				if(LOG.isLoggable(Level.WARNING)) LOG.warning(e.toString());
 				transport.dispose(true, false);
@@ -121,8 +121,8 @@ class ConnectionDispatcherImpl implements ConnectionDispatcher {
 				ConnectionContext ctx = recogniser.acceptConnection(transportId,
 						tag);
 				if(ctx == null) transport.dispose(false, false);
-				else streamConnFactory.createIncomingConnection(ctx, transport,
-						tag);
+				else streamConnFactory.createIncomingConnection(ctx,
+						transportId, transport, tag);
 			} catch(DbException e) {
 				if(LOG.isLoggable(Level.WARNING)) LOG.warning(e.toString());
 				transport.dispose(true, false);

components/net/sf/briar/transport/ConnectionRegistryImpl.java

@@ -0,0 +1,53 @@
+package net.sf.briar.transport;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import net.sf.briar.api.ContactId;
+import net.sf.briar.api.protocol.TransportId;
+import net.sf.briar.api.transport.ConnectionRegistry;
+
+public class ConnectionRegistryImpl implements ConnectionRegistry {
+
+	// Locking: this
+	private final Map<TransportId, Map<ContactId, Integer>> connections;
+
+	ConnectionRegistryImpl() {
+		connections = new HashMap<TransportId, Map<ContactId, Integer>>();
+	}
+
+	public synchronized void registerConnection(ContactId c, TransportId t) {
+		Map<ContactId, Integer> m = connections.get(t);
+		if(m == null) {
+			m = new HashMap<ContactId, Integer>();
+			connections.put(t, m);
+		}
+		Integer count = m.get(c);
+		if(count == null) m.put(c, 1);
+		else m.put(c, count + 1);
+	}
+
+	public synchronized void unregisterConnection(ContactId c, TransportId t) {
+		Map<ContactId, Integer> m = connections.get(t);
+		if(m == null) throw new IllegalArgumentException();
+		Integer count = m.remove(c);
+		if(count == null) throw new IllegalArgumentException();
+		if(count == 1) {
+			if(m.isEmpty()) connections.remove(t);
+		} else {
+			m.put(c, count - 1);
+		}
+	}
+
+	public synchronized Collection<ContactId> getConnectedContacts(
+			TransportId t) {
+		Map<ContactId, Integer> m = connections.get(t);
+		if(m == null) return Collections.emptyList();
+		List<ContactId> keys = new ArrayList<ContactId>(m.keySet());
+		return Collections.unmodifiableList(keys);
+	}
+}

components/net/sf/briar/transport/TransportModule.java

@@ -8,6 +8,7 @@ import net.sf.briar.api.transport.ConnectionDispatcher;
 import net.sf.briar.api.transport.ConnectionReaderFactory;
 import net.sf.briar.api.transport.ConnectionRecogniser;
 import net.sf.briar.api.transport.ConnectionRecogniserExecutor;
+import net.sf.briar.api.transport.ConnectionRegistry;
 import net.sf.briar.api.transport.ConnectionWindowFactory;
 import net.sf.briar.api.transport.ConnectionWriterFactory;
 
@@ -23,6 +24,7 @@ public class TransportModule extends AbstractModule {
 		bind(ConnectionReaderFactory.class).to(
 				ConnectionReaderFactoryImpl.class);
 		bind(ConnectionRecogniser.class).to(ConnectionRecogniserImpl.class);
+		bind(ConnectionRegistry.class).toInstance(new ConnectionRegistryImpl());
 		bind(ConnectionWindowFactory.class).to(
 				ConnectionWindowFactoryImpl.class);
 		bind(ConnectionWriterFactory.class).to(

test/build.xml

@@ -53,6 +53,7 @@
 			<test name='net.sf.briar.transport.ConnectionEncrypterImplTest'/>
 			<test name='net.sf.briar.transport.ConnectionReaderImplTest'/>
 			<test name='net.sf.briar.transport.ConnectionRecogniserImplTest'/>
+			<test name='net.sf.briar.transport.ConnectionRegistryImplTest'/>
 			<test name='net.sf.briar.transport.ConnectionWindowImplTest'/>
 			<test name='net.sf.briar.transport.ConnectionWriterImplTest'/>
 			<test name='net.sf.briar.transport.ConnectionWriterTest'/>

test/net/sf/briar/BriarTestCase.java

@@ -0,0 +1,19 @@
+package net.sf.briar;
+
+import java.lang.Thread.UncaughtExceptionHandler;
+
+import junit.framework.TestCase;
+
+public abstract class BriarTestCase extends TestCase {
+
+	public BriarTestCase() {
+		super();
+		// Ensure exceptions thrown on worker threads cause tests to fail
+		UncaughtExceptionHandler fail = new UncaughtExceptionHandler() {
+			public void uncaughtException(Thread thread, Throwable throwable) {
+				fail();
+			}
+		};
+		Thread.setDefaultUncaughtExceptionHandler(fail);
+	}
+}

test/net/sf/briar/LockFairnessTest.java

@@ -4,12 +4,10 @@ import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.locks.ReentrantReadWriteLock;
 
-import junit.framework.TestCase;
-
 import org.junit.After;
 import org.junit.Test;
 
-public class LockFairnessTest extends TestCase {
+public class LockFairnessTest extends BriarTestCase {
 
 	private final ReentrantReadWriteLock lock =
 		new ReentrantReadWriteLock(true); // Fair

test/net/sf/briar/ProtocolIntegrationTest.java

@@ -17,7 +17,6 @@ import java.util.LinkedHashMap;
 import java.util.Map;
 import java.util.Random;
 
-import junit.framework.TestCase;
 import net.sf.briar.api.crypto.CryptoComponent;
 import net.sf.briar.api.protocol.Ack;
 import net.sf.briar.api.protocol.Author;
@@ -60,7 +59,7 @@ import org.junit.Test;
 import com.google.inject.Guice;
 import com.google.inject.Injector;
 
-public class ProtocolIntegrationTest extends TestCase {
+public class ProtocolIntegrationTest extends BriarTestCase {
 
 	private final BatchId ack = new BatchId(TestUtils.getRandomId());
 	private final long timestamp = System.currentTimeMillis();

test/net/sf/briar/crypto/CounterModeTest.java

@@ -10,13 +10,13 @@ import javax.crypto.Cipher;
 import javax.crypto.spec.IvParameterSpec;
 import javax.crypto.spec.SecretKeySpec;
 
-import junit.framework.TestCase;
+import net.sf.briar.BriarTestCase;
 import net.sf.briar.api.Bytes;
 
 import org.bouncycastle.jce.provider.BouncyCastleProvider;
 import org.junit.Test;
 
-public class CounterModeTest extends TestCase {
+public class CounterModeTest extends BriarTestCase {
 
 	private static final String CIPHER_ALGO = "AES";
 	private static final String CIPHER_MODE = "AES/CTR/NoPadding";

test/net/sf/briar/crypto/ErasableKeyTest.java

@@ -8,12 +8,12 @@ import javax.crypto.Cipher;
 import javax.crypto.Mac;
 import javax.crypto.spec.IvParameterSpec;
 
-import junit.framework.TestCase;
+import net.sf.briar.BriarTestCase;
 import net.sf.briar.api.crypto.ErasableKey;
 
 import org.junit.Test;
 
-public class ErasableKeyTest extends TestCase {
+public class ErasableKeyTest extends BriarTestCase {
 
 	private static final String CIPHER = "AES";
 	private static final String CIPHER_MODE = "AES/CTR/NoPadding";

test/net/sf/briar/crypto/KeyDerivationTest.java

@@ -5,14 +5,14 @@ import java.util.Arrays;
 import java.util.List;
 import java.util.Random;
 
-import junit.framework.TestCase;
+import net.sf.briar.BriarTestCase;
 import net.sf.briar.api.crypto.CryptoComponent;
 import net.sf.briar.api.crypto.ErasableKey;
 import net.sf.briar.api.protocol.ProtocolConstants;
 
 import org.junit.Test;
 
-public class KeyDerivationTest extends TestCase {
+public class KeyDerivationTest extends BriarTestCase {
 
 	private final CryptoComponent crypto;
 	private final byte[] secret;

test/net/sf/briar/db/BasicH2Test.java

@@ -9,14 +9,14 @@ import java.sql.SQLException;
 import java.sql.Statement;
 import java.util.Random;
 
-import junit.framework.TestCase;
+import net.sf.briar.BriarTestCase;
 import net.sf.briar.TestUtils;
 
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
 
-public class BasicH2Test extends TestCase {
+public class BasicH2Test extends BriarTestCase {
 
 	private static final String CREATE_TABLE =
 		"CREATE TABLE foo"

test/net/sf/briar/db/DatabaseCleanerImplTest.java

@@ -3,13 +3,13 @@ package net.sf.briar.db;
 import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.TimeUnit;
 
-import junit.framework.TestCase;
+import net.sf.briar.BriarTestCase;
 import net.sf.briar.api.db.DbException;
 import net.sf.briar.db.DatabaseCleaner.Callback;
 
 import org.junit.Test;
 
-public class DatabaseCleanerImplTest extends TestCase {
+public class DatabaseCleanerImplTest extends BriarTestCase {
 
 	@Test
 	public void testStoppingCleanerWakesItUp() throws Exception {

test/net/sf/briar/db/DatabaseComponentTest.java

@@ -8,7 +8,7 @@ import java.util.Collections;
 import java.util.Map;
 import java.util.Random;
 
-import junit.framework.TestCase;
+import net.sf.briar.BriarTestCase;
 import net.sf.briar.TestUtils;
 import net.sf.briar.api.ContactId;
 import net.sf.briar.api.Rating;
@@ -47,7 +47,7 @@ import org.jmock.Expectations;
 import org.jmock.Mockery;
 import org.junit.Test;
 
-public abstract class DatabaseComponentTest extends TestCase {
+public abstract class DatabaseComponentTest extends BriarTestCase {
 
 	protected final Object txn = new Object();
 	protected final AuthorId authorId;

test/net/sf/briar/db/H2DatabaseTest.java

@@ -16,7 +16,7 @@ import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.atomic.AtomicBoolean;
 
-import junit.framework.TestCase;
+import net.sf.briar.BriarTestCase;
 import net.sf.briar.TestDatabaseModule;
 import net.sf.briar.TestUtils;
 import net.sf.briar.api.ContactId;
@@ -57,7 +57,7 @@ import org.junit.Test;
 import com.google.inject.Guice;
 import com.google.inject.Injector;
 
-public class H2DatabaseTest extends TestCase {
+public class H2DatabaseTest extends BriarTestCase {
 
 	private static final int ONE_MEGABYTE = 1024 * 1024;
 	private static final int MAX_SIZE = 5 * ONE_MEGABYTE;

test/net/sf/briar/i18n/FontManagerTest.java

@@ -3,13 +3,13 @@ import java.awt.Font;
 import java.io.File;
 import java.util.Locale;
 
-import junit.framework.TestCase;
+import net.sf.briar.BriarTestCase;
 import net.sf.briar.TestUtils;
 import net.sf.briar.api.i18n.FontManager;
 
 import org.junit.Test;
 
-public class FontManagerTest extends TestCase {
+public class FontManagerTest extends BriarTestCase {
 
 	private final File fontDir = TestUtils.getFontDirectory();
 

test/net/sf/briar/i18n/I18nTest.java

@@ -5,7 +5,7 @@ import java.io.File;
 import java.io.IOException;
 import java.util.Locale;
 
-import junit.framework.TestCase;
+import net.sf.briar.BriarTestCase;
 import net.sf.briar.TestUtils;
 import net.sf.briar.api.i18n.FontManager;
 import net.sf.briar.api.i18n.I18n;
@@ -16,7 +16,7 @@ import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
 
-public class I18nTest extends TestCase {
+public class I18nTest extends BriarTestCase {
 
 	private final File base =
 		new File(TestUtils.getBuildDirectory(), "i18n.properties");

test/net/sf/briar/invitation/InvitationWorkerTest.java

@@ -8,7 +8,7 @@ import java.util.Collection;
 import java.util.Collections;
 import java.util.List;
 
-import junit.framework.TestCase;
+import net.sf.briar.BriarTestCase;
 import net.sf.briar.TestUtils;
 import net.sf.briar.api.db.DatabaseComponent;
 import net.sf.briar.api.db.DbException;
@@ -26,7 +26,7 @@ import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
 
-public class InvitationWorkerTest extends TestCase {
+public class InvitationWorkerTest extends BriarTestCase {
 
 	private final File testDir = TestUtils.getTestDirectory();
 

test/net/sf/briar/lifecycle/ShutdownManagerImplTest.java

@@ -3,12 +3,12 @@ package net.sf.briar.lifecycle;
 import java.util.HashSet;
 import java.util.Set;
 
-import junit.framework.TestCase;
+import net.sf.briar.BriarTestCase;
 import net.sf.briar.api.lifecycle.ShutdownManager;
 
 import org.junit.Test;
 
-public class ShutdownManagerImplTest extends TestCase {
+public class ShutdownManagerImplTest extends BriarTestCase {
 
 	@Test
 	public void testAddAndRemove() {

test/net/sf/briar/plugins/PluginManagerImplTest.java

@@ -1,10 +1,11 @@
 package net.sf.briar.plugins;
 
+import java.util.Collection;
 import java.util.concurrent.Executor;
 import java.util.concurrent.Executors;
 import java.util.concurrent.atomic.AtomicInteger;
 
-import junit.framework.TestCase;
+import net.sf.briar.BriarTestCase;
 import net.sf.briar.api.TransportProperties;
 import net.sf.briar.api.db.DatabaseComponent;
 import net.sf.briar.api.protocol.TransportId;
@@ -16,17 +17,20 @@ import org.jmock.Expectations;
 import org.jmock.Mockery;
 import org.junit.Test;
 
-public class PluginManagerImplTest extends TestCase {
+public class PluginManagerImplTest extends BriarTestCase {
 
+	@SuppressWarnings("unchecked")
 	@Test
 	public void testStartAndStop() throws Exception {
 		Mockery context = new Mockery();
 		final DatabaseComponent db = context.mock(DatabaseComponent.class);
+		final Poller poller = context.mock(Poller.class);
 		final ConnectionDispatcher dispatcher =
 			context.mock(ConnectionDispatcher.class);
 		final UiCallback uiCallback = context.mock(UiCallback.class);
 		final AtomicInteger index = new AtomicInteger(0);
 		context.checking(new Expectations() {{
+			oneOf(poller).startPolling(with(any(Collection.class)));
 			allowing(db).getLocalIndex(with(any(TransportId.class)));
 			will(returnValue(null));
 			allowing(db).addTransport(with(any(TransportId.class)));
@@ -37,10 +41,10 @@ public class PluginManagerImplTest extends TestCase {
 			will(returnValue(new TransportProperties()));
 			allowing(db).setLocalProperties(with(any(TransportId.class)),
 					with(any(TransportProperties.class)));
+			oneOf(poller).stopPolling();
 		}});
 		Executor executor = Executors.newCachedThreadPool();
-		Poller poller = new PollerImpl();
-		PluginManagerImpl p = new PluginManagerImpl(db, executor, poller,
+		PluginManagerImpl p = new PluginManagerImpl(executor, db, poller,
 				dispatcher, uiCallback);
 		// We expect either 2 or 3 plugins to be started, depending on whether
 		// the test machine has a Bluetooth device

test/net/sf/briar/plugins/file/LinuxRemovableDriveFinderTest.java

@@ -1,10 +1,10 @@
 package net.sf.briar.plugins.file;
 
-import junit.framework.TestCase;
+import net.sf.briar.BriarTestCase;
 
 import org.junit.Test;
 
-public class LinuxRemovableDriveFinderTest extends TestCase {
+public class LinuxRemovableDriveFinderTest extends BriarTestCase {
 
 	@Test
 	public void testParseMountPoint() {

test/net/sf/briar/plugins/file/MacRemovableDriveFinderTest.java

@@ -1,10 +1,10 @@
 package net.sf.briar.plugins.file;
 
-import junit.framework.TestCase;
+import net.sf.briar.BriarTestCase;
 
 import org.junit.Test;
 
-public class MacRemovableDriveFinderTest extends TestCase {
+public class MacRemovableDriveFinderTest extends BriarTestCase {
 
 	@Test
 	public void testParseMountPoint() {

test/net/sf/briar/plugins/file/PollingRemovableDriveMonitorTest.java

@@ -9,15 +9,14 @@ import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.Executors;
 import java.util.concurrent.TimeUnit;
 
-import junit.framework.TestCase;
-
+import net.sf.briar.BriarTestCase;
 import net.sf.briar.plugins.file.RemovableDriveMonitor.Callback;
 
 import org.jmock.Expectations;
 import org.jmock.Mockery;
 import org.junit.Test;
 
-public class PollingRemovableDriveMonitorTest extends TestCase {
+public class PollingRemovableDriveMonitorTest extends BriarTestCase {
 
 	@Test
 	public void testOneCallbackPerFile() throws Exception {

test/net/sf/briar/plugins/file/RemovableDrivePluginTest.java

@@ -10,7 +10,7 @@ import java.util.Collections;
 import java.util.List;
 import java.util.concurrent.Executor;
 
-import junit.framework.TestCase;
+import net.sf.briar.BriarTestCase;
 import net.sf.briar.TestUtils;
 import net.sf.briar.api.ContactId;
 import net.sf.briar.api.plugins.BatchPluginCallback;
@@ -25,7 +25,7 @@ import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
 
-public class RemovableDrivePluginTest extends TestCase {
+public class RemovableDrivePluginTest extends BriarTestCase {
 
 	private final File testDir = TestUtils.getTestDirectory();
 	private final ContactId contactId = new ContactId(0);

test/net/sf/briar/plugins/file/UnixRemovableDriveMonitorTest.java

@@ -6,7 +6,7 @@ import java.util.List;
 import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.TimeUnit;
 
-import junit.framework.TestCase;
+import net.sf.briar.BriarTestCase;
 import net.sf.briar.TestUtils;
 import net.sf.briar.plugins.file.RemovableDriveMonitor.Callback;
 import net.sf.briar.util.OsUtils;
@@ -15,7 +15,7 @@ import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
 
-public class UnixRemovableDriveMonitorTest extends TestCase {
+public class UnixRemovableDriveMonitorTest extends BriarTestCase {
 
 	private final File testDir = TestUtils.getTestDirectory();
 

test/net/sf/briar/plugins/socket/SimpleSocketPluginTest.java

@@ -11,7 +11,7 @@ import java.util.concurrent.Executors;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.atomic.AtomicBoolean;
 
-import junit.framework.TestCase;
+import net.sf.briar.BriarTestCase;
 import net.sf.briar.api.ContactId;
 import net.sf.briar.api.TransportConfig;
 import net.sf.briar.api.TransportProperties;
@@ -20,7 +20,7 @@ import net.sf.briar.api.transport.StreamTransportConnection;
 
 import org.junit.Test;
 
-public class SimpleSocketPluginTest extends TestCase {
+public class SimpleSocketPluginTest extends BriarTestCase {
 
 	private final ContactId contactId = new ContactId(0);
 

test/net/sf/briar/protocol/AckReaderTest.java

@@ -4,7 +4,7 @@ import java.io.ByteArrayInputStream;
 import java.io.ByteArrayOutputStream;
 import java.util.Collection;
 
-import junit.framework.TestCase;
+import net.sf.briar.BriarTestCase;
 import net.sf.briar.TestUtils;
 import net.sf.briar.api.FormatException;
 import net.sf.briar.api.protocol.Ack;
@@ -25,7 +25,7 @@ import org.junit.Test;
 import com.google.inject.Guice;
 import com.google.inject.Injector;
 
-public class AckReaderTest extends TestCase {
+public class AckReaderTest extends BriarTestCase {
 
 	private final SerialComponent serial;
 	private final ReaderFactory readerFactory;

test/net/sf/briar/protocol/BatchReaderTest.java

@@ -5,7 +5,7 @@ import java.io.ByteArrayOutputStream;
 import java.io.IOException;
 import java.util.Collections;
 
-import junit.framework.TestCase;
+import net.sf.briar.BriarTestCase;
 import net.sf.briar.api.FormatException;
 import net.sf.briar.api.protocol.ProtocolConstants;
 import net.sf.briar.api.protocol.Types;
@@ -24,7 +24,7 @@ import org.junit.Test;
 import com.google.inject.Guice;
 import com.google.inject.Injector;
 
-public class BatchReaderTest extends TestCase {
+public class BatchReaderTest extends BriarTestCase {
 
 	private final ReaderFactory readerFactory;
 	private final WriterFactory writerFactory;

test/net/sf/briar/protocol/ConstantsTest.java

@@ -19,7 +19,7 @@ import java.util.Collections;
 import java.util.HashMap;
 import java.util.Map;
 
-import junit.framework.TestCase;
+import net.sf.briar.BriarTestCase;
 import net.sf.briar.TestUtils;
 import net.sf.briar.api.crypto.CryptoComponent;
 import net.sf.briar.api.protocol.Ack;
@@ -50,7 +50,7 @@ import org.junit.Test;
 import com.google.inject.Guice;
 import com.google.inject.Injector;
 
-public class ConstantsTest extends TestCase {
+public class ConstantsTest extends BriarTestCase {
 
 	private final CryptoComponent crypto;
 	private final GroupFactory groupFactory;

test/net/sf/briar/protocol/ConsumersTest.java

@@ -4,7 +4,7 @@ import static org.junit.Assert.assertArrayEquals;
 
 import java.util.Random;
 
-import junit.framework.TestCase;
+import net.sf.briar.BriarTestCase;
 import net.sf.briar.api.FormatException;
 import net.sf.briar.api.crypto.CryptoComponent;
 import net.sf.briar.api.crypto.MessageDigest;
@@ -19,7 +19,7 @@ import org.junit.Test;
 import com.google.inject.Guice;
 import com.google.inject.Injector;
 
-public class ConsumersTest extends TestCase {
+public class ConsumersTest extends BriarTestCase {
 
 	private CryptoComponent crypto = null;
 

test/net/sf/briar/protocol/OfferReaderTest.java

@@ -4,7 +4,7 @@ import java.io.ByteArrayInputStream;
 import java.io.ByteArrayOutputStream;
 import java.util.Collection;
 
-import junit.framework.TestCase;
+import net.sf.briar.BriarTestCase;
 import net.sf.briar.TestUtils;
 import net.sf.briar.api.FormatException;
 import net.sf.briar.api.protocol.Offer;
@@ -25,7 +25,7 @@ import org.junit.Test;
 import com.google.inject.Guice;
 import com.google.inject.Injector;
 
-public class OfferReaderTest extends TestCase {
+public class OfferReaderTest extends BriarTestCase {
 
 	private final SerialComponent serial;
 	private final ReaderFactory readerFactory;

test/net/sf/briar/protocol/ProtocolReadWriteTest.java

@@ -7,7 +7,7 @@ import java.util.Collection;
 import java.util.Collections;
 import java.util.Map;
 
-import junit.framework.TestCase;
+import net.sf.briar.BriarTestCase;
 import net.sf.briar.TestUtils;
 import net.sf.briar.api.protocol.Ack;
 import net.sf.briar.api.protocol.Batch;
@@ -37,7 +37,7 @@ import org.junit.Test;
 import com.google.inject.Guice;
 import com.google.inject.Injector;
 
-public class ProtocolReadWriteTest extends TestCase {
+public class ProtocolReadWriteTest extends BriarTestCase {
 
 	private final ProtocolReaderFactory readerFactory;
 	private final ProtocolWriterFactory writerFactory;

test/net/sf/briar/protocol/ProtocolWriterImplTest.java

@@ -4,7 +4,7 @@ import java.io.ByteArrayOutputStream;
 import java.io.IOException;
 import java.util.BitSet;
 
-import junit.framework.TestCase;
+import net.sf.briar.BriarTestCase;
 import net.sf.briar.api.protocol.PacketFactory;
 import net.sf.briar.api.protocol.ProtocolWriter;
 import net.sf.briar.api.protocol.Request;
@@ -19,7 +19,7 @@ import org.junit.Test;
 import com.google.inject.Guice;
 import com.google.inject.Injector;
 
-public class ProtocolWriterImplTest extends TestCase {
+public class ProtocolWriterImplTest extends BriarTestCase {
 
 	private final PacketFactory packetFactory;
 	private final SerialComponent serial;

test/net/sf/briar/protocol/RequestReaderTest.java

@@ -4,7 +4,7 @@ import java.io.ByteArrayInputStream;
 import java.io.ByteArrayOutputStream;
 import java.util.BitSet;
 
-import junit.framework.TestCase;
+import net.sf.briar.BriarTestCase;
 import net.sf.briar.api.FormatException;
 import net.sf.briar.api.protocol.PacketFactory;
 import net.sf.briar.api.protocol.ProtocolConstants;
@@ -24,7 +24,7 @@ import org.junit.Test;
 import com.google.inject.Guice;
 import com.google.inject.Injector;
 
-public class RequestReaderTest extends TestCase {
+public class RequestReaderTest extends BriarTestCase {
 
 	private final ReaderFactory readerFactory;
 	private final WriterFactory writerFactory;

test/net/sf/briar/protocol/UnverifiedBatchImplTest.java

@@ -8,7 +8,7 @@ import java.util.Collection;
 import java.util.Iterator;
 import java.util.Random;
 
-import junit.framework.TestCase;
+import net.sf.briar.BriarTestCase;
 import net.sf.briar.TestUtils;
 import net.sf.briar.api.crypto.CryptoComponent;
 import net.sf.briar.api.crypto.MessageDigest;
@@ -30,7 +30,7 @@ import org.junit.Test;
 import com.google.inject.Guice;
 import com.google.inject.Injector;
 
-public class UnverifiedBatchImplTest extends TestCase {
+public class UnverifiedBatchImplTest extends BriarTestCase {
 
 	private final CryptoComponent crypto;
 	private final byte[] raw, raw1;

test/net/sf/briar/protocol/batch/BatchConnectionReadWriteTest.java

@@ -9,7 +9,7 @@ import java.util.Collection;
 import java.util.Collections;
 import java.util.Random;
 
-import junit.framework.TestCase;
+import net.sf.briar.BriarTestCase;
 import net.sf.briar.TestDatabaseModule;
 import net.sf.briar.TestUtils;
 import net.sf.briar.api.ContactId;
@@ -28,6 +28,7 @@ import net.sf.briar.api.protocol.TransportUpdate;
 import net.sf.briar.api.transport.ConnectionContext;
 import net.sf.briar.api.transport.ConnectionReaderFactory;
 import net.sf.briar.api.transport.ConnectionRecogniser;
+import net.sf.briar.api.transport.ConnectionRegistry;
 import net.sf.briar.api.transport.ConnectionWriterFactory;
 import net.sf.briar.crypto.CryptoModule;
 import net.sf.briar.db.DatabaseModule;
@@ -45,7 +46,7 @@ import org.junit.Test;
 import com.google.inject.Guice;
 import com.google.inject.Injector;
 
-public class BatchConnectionReadWriteTest extends TestCase {
+public class BatchConnectionReadWriteTest extends BriarTestCase {
 
 	private final File testDir = TestUtils.getTestDirectory();
 	private final File aliceDir = new File(testDir, "alice");
@@ -107,6 +108,8 @@ public class BatchConnectionReadWriteTest extends TestCase {
 		db.addLocalPrivateMessage(message, contactId);
 		// Create an outgoing batch connection
 		ByteArrayOutputStream out = new ByteArrayOutputStream();
+		ConnectionRegistry connRegistry =
+			alice.getInstance(ConnectionRegistry.class);
 		ConnectionWriterFactory connFactory =
 			alice.getInstance(ConnectionWriterFactory.class);
 		ProtocolWriterFactory protoFactory =
@@ -114,8 +117,8 @@ public class BatchConnectionReadWriteTest extends TestCase {
 		TestBatchTransportWriter transport = new TestBatchTransportWriter(out,
 				Long.MAX_VALUE, false);
 		OutgoingBatchConnection batchOut = new OutgoingBatchConnection(db,
-				connFactory, protoFactory, contactId, transportIndex,
-				transport);
+				connRegistry, connFactory, protoFactory, contactId, transportId,
+				transportIndex, transport);
 		// Write whatever needs to be written
 		batchOut.write();
 		assertTrue(transport.getDisposed());
@@ -161,6 +164,8 @@ public class BatchConnectionReadWriteTest extends TestCase {
 		assertEquals(contactId, ctx.getContactId());
 		assertEquals(transportIndex, ctx.getTransportIndex());
 		// Create an incoming batch connection
+		ConnectionRegistry connRegistry =
+			bob.getInstance(ConnectionRegistry.class);
 		ConnectionReaderFactory connFactory =
 			bob.getInstance(ConnectionReaderFactory.class);
 		ProtocolReaderFactory protoFactory =
@@ -168,7 +173,8 @@ public class BatchConnectionReadWriteTest extends TestCase {
 		TestBatchTransportReader transport = new TestBatchTransportReader(in);
 		IncomingBatchConnection batchIn = new IncomingBatchConnection(
 				new ImmediateExecutor(), new ImmediateExecutor(), db,
-				connFactory, protoFactory, ctx, transport, tag);
+				connRegistry, connFactory, protoFactory, ctx, transportId,
+				transport, tag);
 		// No messages should have been added yet
 		assertFalse(listener.messagesAdded);
 		// Read whatever needs to be read

test/net/sf/briar/protocol/batch/OutgoingBatchConnectionTest.java

@@ -5,7 +5,7 @@ import java.util.Collections;
 import java.util.concurrent.Executor;
 import java.util.concurrent.Executors;
 
-import junit.framework.TestCase;
+import net.sf.briar.BriarTestCase;
 import net.sf.briar.TestUtils;
 import net.sf.briar.api.ContactId;
 import net.sf.briar.api.db.DatabaseComponent;
@@ -15,9 +15,11 @@ import net.sf.briar.api.protocol.BatchId;
 import net.sf.briar.api.protocol.ProtocolConstants;
 import net.sf.briar.api.protocol.ProtocolWriterFactory;
 import net.sf.briar.api.protocol.RawBatch;
+import net.sf.briar.api.protocol.TransportId;
 import net.sf.briar.api.protocol.TransportIndex;
 import net.sf.briar.api.protocol.UniqueId;
 import net.sf.briar.api.transport.ConnectionContext;
+import net.sf.briar.api.transport.ConnectionRegistry;
 import net.sf.briar.api.transport.ConnectionWriterFactory;
 import net.sf.briar.api.transport.TransportConstants;
 import net.sf.briar.crypto.CryptoModule;
@@ -35,13 +37,15 @@ import com.google.inject.Guice;
 import com.google.inject.Injector;
 import com.google.inject.Module;
 
-public class OutgoingBatchConnectionTest extends TestCase {
+public class OutgoingBatchConnectionTest extends BriarTestCase {
 
 	private final Mockery context;
 	private final DatabaseComponent db;
+	private final ConnectionRegistry connRegistry;
 	private final ConnectionWriterFactory connFactory;
 	private final ProtocolWriterFactory protoFactory;
 	private final ContactId contactId;
+	private final TransportId transportId;
 	private final TransportIndex transportIndex;
 	private final byte[] secret;
 
@@ -62,9 +66,11 @@ public class OutgoingBatchConnectionTest extends TestCase {
 				new SerialModule(), new TransportModule(),
 				new ProtocolBatchModule(), new ProtocolModule(),
 				new ProtocolStreamModule());
+		connRegistry = i.getInstance(ConnectionRegistry.class);
 		connFactory = i.getInstance(ConnectionWriterFactory.class);
 		protoFactory = i.getInstance(ProtocolWriterFactory.class);
 		contactId = new ContactId(1);
+		transportId = new TransportId(TestUtils.getRandomId());
 		transportIndex = new TransportIndex(13);
 		secret = new byte[32];
 	}
@@ -75,8 +81,8 @@ public class OutgoingBatchConnectionTest extends TestCase {
 		TestBatchTransportWriter transport = new TestBatchTransportWriter(out,
 				ProtocolConstants.MAX_PACKET_LENGTH, true);
 		OutgoingBatchConnection connection = new OutgoingBatchConnection(db,
-				connFactory, protoFactory, contactId, transportIndex,
-				transport);
+				connRegistry, connFactory, protoFactory, contactId, transportId,
+				transportIndex, transport);
 		final ConnectionContext ctx = context.mock(ConnectionContext.class);
 		context.checking(new Expectations() {{
 			oneOf(db).getConnectionContext(contactId, transportIndex);
@@ -99,8 +105,8 @@ public class OutgoingBatchConnectionTest extends TestCase {
 		TestBatchTransportWriter transport = new TestBatchTransportWriter(out,
 				TransportConstants.MIN_CONNECTION_LENGTH, true);
 		OutgoingBatchConnection connection = new OutgoingBatchConnection(db,
-				connFactory, protoFactory, contactId, transportIndex,
-				transport);
+				connRegistry, connFactory, protoFactory, contactId, transportId,
+				transportIndex, transport);
 		final ConnectionContext ctx = context.mock(ConnectionContext.class);
 		context.checking(new Expectations() {{
 			oneOf(db).getConnectionContext(contactId, transportIndex);
@@ -135,8 +141,8 @@ public class OutgoingBatchConnectionTest extends TestCase {
 		TestBatchTransportWriter transport = new TestBatchTransportWriter(out,
 				TransportConstants.MIN_CONNECTION_LENGTH, true);
 		OutgoingBatchConnection connection = new OutgoingBatchConnection(db,
-				connFactory, protoFactory, contactId, transportIndex,
-				transport);
+				connRegistry, connFactory, protoFactory, contactId, transportId,
+				transportIndex, transport);
 		final ConnectionContext ctx = context.mock(ConnectionContext.class);
 		final Ack ack = context.mock(Ack.class);
 		final BatchId batchId = new BatchId(TestUtils.getRandomId());

test/net/sf/briar/serial/ReaderImplTest.java

@@ -10,7 +10,7 @@ import java.util.List;
 import java.util.Map;
 import java.util.Map.Entry;
 
-import junit.framework.TestCase;
+import net.sf.briar.BriarTestCase;
 import net.sf.briar.api.Bytes;
 import net.sf.briar.api.FormatException;
 import net.sf.briar.api.serial.Consumer;
@@ -20,7 +20,7 @@ import net.sf.briar.util.StringUtils;
 
 import org.junit.Test;
 
-public class ReaderImplTest extends TestCase {
+public class ReaderImplTest extends BriarTestCase {
 
 	private ByteArrayInputStream in = null;
 	private ReaderImpl r = null;

test/net/sf/briar/serial/WriterImplTest.java

@@ -8,13 +8,13 @@ import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
 
-import junit.framework.TestCase;
+import net.sf.briar.BriarTestCase;
 import net.sf.briar.util.StringUtils;
 
 import org.junit.Before;
 import org.junit.Test;
 
-public class WriterImplTest extends TestCase {
+public class WriterImplTest extends BriarTestCase {
 
 	private ByteArrayOutputStream out = null;
 	private WriterImpl w = null;

test/net/sf/briar/setup/SetupWorkerTest.java

@@ -5,7 +5,7 @@ import java.io.FileOutputStream;
 import java.io.IOException;
 import java.util.zip.ZipOutputStream;
 
-import junit.framework.TestCase;
+import net.sf.briar.BriarTestCase;
 import net.sf.briar.TestUtils;
 import net.sf.briar.api.i18n.I18n;
 import net.sf.briar.api.setup.SetupCallback;
@@ -18,7 +18,7 @@ import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
 
-public class SetupWorkerTest extends TestCase {
+public class SetupWorkerTest extends BriarTestCase {
 
 	private static final int HEADER_SIZE = 1234;
 

test/net/sf/briar/transport/ConnectionDecrypterImplTest.java

@@ -7,7 +7,7 @@ import java.io.ByteArrayInputStream;
 import javax.crypto.Cipher;
 import javax.crypto.spec.IvParameterSpec;
 
-import junit.framework.TestCase;
+import net.sf.briar.BriarTestCase;
 import net.sf.briar.TestUtils;
 import net.sf.briar.api.crypto.CryptoComponent;
 import net.sf.briar.api.crypto.ErasableKey;
@@ -19,7 +19,7 @@ import org.junit.Test;
 import com.google.inject.Guice;
 import com.google.inject.Injector;
 
-public class ConnectionDecrypterImplTest extends TestCase {
+public class ConnectionDecrypterImplTest extends BriarTestCase {
 
 	private static final int MAC_LENGTH = 32;
 

test/net/sf/briar/transport/ConnectionEncrypterImplTest.java

@@ -7,7 +7,7 @@ import java.io.ByteArrayOutputStream;
 import javax.crypto.Cipher;
 import javax.crypto.spec.IvParameterSpec;
 
-import junit.framework.TestCase;
+import net.sf.briar.BriarTestCase;
 import net.sf.briar.api.crypto.CryptoComponent;
 import net.sf.briar.api.crypto.ErasableKey;
 import net.sf.briar.crypto.CryptoModule;
@@ -17,7 +17,7 @@ import org.junit.Test;
 import com.google.inject.Guice;
 import com.google.inject.Injector;
 
-public class ConnectionEncrypterImplTest extends TestCase {
+public class ConnectionEncrypterImplTest extends BriarTestCase {
 
 	private static final int MAC_LENGTH = 32;
 

test/net/sf/briar/transport/ConnectionRecogniserImplTest.java

@@ -11,7 +11,7 @@ import java.util.concurrent.Executor;
 
 import javax.crypto.Cipher;
 
-import junit.framework.TestCase;
+import net.sf.briar.BriarTestCase;
 import net.sf.briar.TestUtils;
 import net.sf.briar.api.ContactId;
 import net.sf.briar.api.crypto.CryptoComponent;
@@ -35,7 +35,7 @@ import org.junit.Test;
 import com.google.inject.Guice;
 import com.google.inject.Injector;
 
-public class ConnectionRecogniserImplTest extends TestCase {
+public class ConnectionRecogniserImplTest extends BriarTestCase {
 
 	private final CryptoComponent crypto;
 	private final ContactId contactId;

test/net/sf/briar/transport/ConnectionRegistryImplTest.java

@@ -0,0 +1,73 @@
+package net.sf.briar.transport;
+
+import java.util.Arrays;
+import java.util.Collections;
+
+import net.sf.briar.BriarTestCase;
+import net.sf.briar.TestUtils;
+import net.sf.briar.api.ContactId;
+import net.sf.briar.api.protocol.TransportId;
+import net.sf.briar.api.transport.ConnectionRegistry;
+
+import org.junit.Test;
+
+public class ConnectionRegistryImplTest extends BriarTestCase {
+
+	private final ContactId contactId, contactId1;
+	private final TransportId transportId, transportId1;
+
+	public ConnectionRegistryImplTest() {
+		super();
+		contactId = new ContactId(1);
+		contactId1 = new ContactId(2);
+		transportId = new TransportId(TestUtils.getRandomId());
+		transportId1 = new TransportId(TestUtils.getRandomId());
+	}
+
+	@Test
+	public void testRegisterAndUnregister() {
+		ConnectionRegistry c = new ConnectionRegistryImpl();
+		// The registry should be empty
+		assertEquals(Collections.emptyList(),
+				c.getConnectedContacts(transportId));
+		assertEquals(Collections.emptyList(),
+				c.getConnectedContacts(transportId1));
+		// Check that a registered connection shows up
+		c.registerConnection(contactId, transportId);
+		assertEquals(Collections.singletonList(contactId),
+				c.getConnectedContacts(transportId));
+		assertEquals(Collections.emptyList(),
+				c.getConnectedContacts(transportId1));
+		// Register an identical connection - lookup should be unaffected
+		c.registerConnection(contactId, transportId);
+		assertEquals(Collections.singletonList(contactId),
+				c.getConnectedContacts(transportId));
+		assertEquals(Collections.emptyList(),
+				c.getConnectedContacts(transportId1));
+		// Unregister one of the connections - lookup should be unaffected
+		c.unregisterConnection(contactId, transportId);
+		assertEquals(Collections.singletonList(contactId),
+				c.getConnectedContacts(transportId));
+		assertEquals(Collections.emptyList(),
+				c.getConnectedContacts(transportId1));
+		// Unregister the other connection - lookup should be affected
+		c.unregisterConnection(contactId, transportId);
+		assertEquals(Collections.emptyList(),
+				c.getConnectedContacts(transportId));
+		assertEquals(Collections.emptyList(),
+				c.getConnectedContacts(transportId1));
+		// Try to unregister the connection again - exception should be thrown
+		try {
+			c.unregisterConnection(contactId, transportId);
+			fail();
+		} catch(IllegalArgumentException expected) {}
+		// Register both contacts with one transport, one contact with both
+		c.registerConnection(contactId, transportId);
+		c.registerConnection(contactId1, transportId);
+		c.registerConnection(contactId1, transportId1);
+		assertEquals(Arrays.asList(new ContactId[] {contactId, contactId1}),
+				c.getConnectedContacts(transportId));
+		assertEquals(Collections.singletonList(contactId1),
+				c.getConnectedContacts(transportId1));
+	}
+}

test/net/sf/briar/transport/ConnectionWindowImplTest.java

@@ -4,7 +4,7 @@ import java.util.HashMap;
 import java.util.Map;
 import java.util.Random;
 
-import junit.framework.TestCase;
+import net.sf.briar.BriarTestCase;
 import net.sf.briar.api.crypto.CryptoComponent;
 import net.sf.briar.api.protocol.TransportIndex;
 import net.sf.briar.api.transport.ConnectionWindow;
@@ -16,7 +16,7 @@ import org.junit.Test;
 import com.google.inject.Guice;
 import com.google.inject.Injector;
 
-public class ConnectionWindowImplTest extends TestCase {
+public class ConnectionWindowImplTest extends BriarTestCase {
 
 	private final CryptoComponent crypto;
 	private final byte[] secret;

test/net/sf/briar/transport/ConnectionWriterTest.java

@@ -6,7 +6,7 @@ import static net.sf.briar.api.transport.TransportConstants.MIN_CONNECTION_LENGT
 import java.io.ByteArrayOutputStream;
 import java.util.Random;
 
-import junit.framework.TestCase;
+import net.sf.briar.BriarTestCase;
 import net.sf.briar.TestDatabaseModule;
 import net.sf.briar.api.transport.ConnectionWriter;
 import net.sf.briar.api.transport.ConnectionWriterFactory;
@@ -23,7 +23,7 @@ import org.junit.Test;
 import com.google.inject.Guice;
 import com.google.inject.Injector;
 
-public class ConnectionWriterTest extends TestCase {
+public class ConnectionWriterTest extends BriarTestCase {
 
 	private final ConnectionWriterFactory connectionWriterFactory;
 	private final byte[] secret;

test/net/sf/briar/transport/FrameReadWriteTest.java

@@ -12,7 +12,7 @@ import java.util.Random;
 import javax.crypto.Cipher;
 import javax.crypto.Mac;
 
-import junit.framework.TestCase;
+import net.sf.briar.BriarTestCase;
 import net.sf.briar.api.crypto.CryptoComponent;
 import net.sf.briar.api.crypto.ErasableKey;
 import net.sf.briar.api.transport.ConnectionReader;
@@ -24,7 +24,7 @@ import org.junit.Test;
 import com.google.inject.Guice;
 import com.google.inject.Injector;
 
-public class FrameReadWriteTest extends TestCase {
+public class FrameReadWriteTest extends BriarTestCase {
 
 	private final CryptoComponent crypto;
 	private final Cipher tagCipher, frameCipher;

test/net/sf/briar/transport/TransportTest.java

@@ -5,7 +5,7 @@ import static net.sf.briar.api.transport.TransportConstants.MAX_FRAME_LENGTH;
 
 import javax.crypto.Mac;
 
-import junit.framework.TestCase;
+import net.sf.briar.BriarTestCase;
 import net.sf.briar.api.crypto.CryptoComponent;
 import net.sf.briar.api.crypto.ErasableKey;
 import net.sf.briar.crypto.CryptoModule;
@@ -13,7 +13,7 @@ import net.sf.briar.crypto.CryptoModule;
 import com.google.inject.Guice;
 import com.google.inject.Injector;
 
-public abstract class TransportTest extends TestCase {
+public abstract class TransportTest extends BriarTestCase {
 
 	protected final Mac mac;
 	protected final ErasableKey macKey;

test/net/sf/briar/util/ByteUtilsTest.java

@@ -1,10 +1,10 @@
 package net.sf.briar.util;
 
-import junit.framework.TestCase;
+import net.sf.briar.BriarTestCase;
 
 import org.junit.Test;
 
-public class ByteUtilsTest extends TestCase {
+public class ByteUtilsTest extends BriarTestCase {
 
 	@Test
 	public void testReadUint16() {

test/net/sf/briar/util/FileUtilsTest.java

@@ -6,7 +6,7 @@ import java.io.IOException;
 import java.io.InputStream;
 import java.util.Scanner;
 
-import junit.framework.TestCase;
+import net.sf.briar.BriarTestCase;
 import net.sf.briar.TestUtils;
 import net.sf.briar.util.FileUtils.Callback;
 
@@ -16,7 +16,7 @@ import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
 
-public class FileUtilsTest extends TestCase {
+public class FileUtilsTest extends BriarTestCase {
 
 	private final File testDir = TestUtils.getTestDirectory();
 

test/net/sf/briar/util/StringUtilsTest.java

@@ -1,11 +1,11 @@
 package net.sf.briar.util;
 
 import static org.junit.Assert.assertArrayEquals;
-import junit.framework.TestCase;
+import net.sf.briar.BriarTestCase;
 
 import org.junit.Test;
 
-public class StringUtilsTest extends TestCase {
+public class StringUtilsTest extends BriarTestCase {
 
 	@Test
 	public void testHead() {

test/net/sf/briar/util/ZipUtilsTest.java

@@ -13,7 +13,7 @@ import java.util.zip.ZipEntry;
 import java.util.zip.ZipInputStream;
 import java.util.zip.ZipOutputStream;
 
-import junit.framework.TestCase;
+import net.sf.briar.BriarTestCase;
 import net.sf.briar.TestUtils;
 import net.sf.briar.util.ZipUtils.Callback;
 
@@ -23,7 +23,7 @@ import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
 
-public class ZipUtilsTest extends TestCase {
+public class ZipUtilsTest extends BriarTestCase {
 
 	private final File testDir = TestUtils.getTestDirectory();