Fixed some resource leak warnings in unit tests.

Four more warnings were left unfixed because quick fixes would've broken
the tests.

briar-tests/src/net/sf/briar/transport/ConnectionReaderImplTest.java

@@ -34,6 +34,7 @@ public class ConnectionReaderImplTest extends BriarTestCase {
 		assertEquals(-1, c.read()); // Skip the second empty frame, reach EOF
 		assertEquals(-1, c.read()); // Still at EOF
 		context.assertIsSatisfied();
+		c.close();
 	}
 
 	@Test
@@ -59,6 +60,7 @@ public class ConnectionReaderImplTest extends BriarTestCase {
 		// Still at EOF
 		assertEquals(-1, c.read(buf));
 		context.assertIsSatisfied();
+		c.close();
 	}
 
 	@Test
@@ -80,6 +82,7 @@ public class ConnectionReaderImplTest extends BriarTestCase {
 		// Reach EOF
 		assertEquals(-1, c.read(buf, 0, buf.length));
 		context.assertIsSatisfied();
+		c.close();
 	}
 
 	@Test
@@ -103,5 +106,6 @@ public class ConnectionReaderImplTest extends BriarTestCase {
 		// Reach EOF
 		assertEquals(-1, c.read(buf, 0, buf.length));
 		context.assertIsSatisfied();
+		c.close();
 	}
 }

briar-tests/src/net/sf/briar/transport/TransportIntegrationTest.java

@@ -121,6 +121,8 @@ public class TransportIntegrationTest extends BriarTestCase {
 		}
 		assertEquals(recovered1.length, offset);
 		assertArrayEquals(frame1, recovered1);
+		writer.close();
+		reader.close();
 	}
 
 	@Test