Use fail() instead of assertTrue(false).

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

@@ -34,7 +34,7 @@ public class DatabaseCleanerImplTest extends TestCase {
 		try {
 			assertTrue(latch.await(5, TimeUnit.SECONDS));
 		} catch(InterruptedException e) {
-			assertTrue(false);
+			fail();
 		}
 		// Stop the cleaner (it should be waiting between sweeps)
 		cleaner.stopCleaning();

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

@@ -470,63 +470,63 @@ public abstract class DatabaseComponentTest extends TestCase {
 
 		try {
 			db.generateAck(contactId, ackWriter);
-			assertTrue(false);
+			fail();
 		} catch(NoSuchContactException expected) {}
 
 		try {
 			db.generateBatch(contactId, batchWriter);
-			assertTrue(false);
+			fail();
 		} catch(NoSuchContactException expected) {}
 
 		try {
 			db.generateBatch(contactId, batchWriter,
 					Collections.<MessageId>emptyList());
-			assertTrue(false);
+			fail();
 		} catch(NoSuchContactException expected) {}
 
 		try {
 			db.generateOffer(contactId, offerWriter);
-			assertTrue(false);
+			fail();
 		} catch(NoSuchContactException expected) {}
 
 		try {
 			db.generateSubscriptions(contactId, subscriptionWriter);
-			assertTrue(false);
+			fail();
 		} catch(NoSuchContactException expected) {}
 
 		try {
 			db.generateTransports(contactId, transportWriter);
-			assertTrue(false);
+			fail();
 		} catch(NoSuchContactException expected) {}
 
 		try {
 			db.hasSendableMessages(contactId);
-			assertTrue(false);
+			fail();
 		} catch(NoSuchContactException expected) {}
 
 		try {
 			db.receiveAck(contactId, ack);
-			assertTrue(false);
+			fail();
 		} catch(NoSuchContactException expected) {}
 
 		try {
 			db.receiveBatch(contactId, batch);
-			assertTrue(false);
+			fail();
 		} catch(NoSuchContactException expected) {}
 
 		try {
 			db.receiveOffer(contactId, offer, requestWriter);
-			assertTrue(false);
+			fail();
 		} catch(NoSuchContactException expected) {}
 
 		try {
 			db.receiveSubscriptions(contactId, subscriptionsUpdate);
-			assertTrue(false);
+			fail();
 		} catch(NoSuchContactException expected) {}
 
 		try {
 			db.receiveTransports(contactId, transportsUpdate);
-			assertTrue(false);
+			fail();
 		} catch(NoSuchContactException expected) {}
 
 		context.assertIsSatisfied();

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

@@ -1119,7 +1119,7 @@ public class H2DatabaseTest extends TestCase {
 		try {
 			// Ask for a nonexistent message - an exception should be thrown
 			db.getMessage(txn, messageId);
-			assertTrue(false);
+			fail();
 		} catch(DbException expected) {
 			// It should be possible to abort the transaction without error
 			db.abortTransaction(txn);