diff --git a/org.eclipse.jgit.http.server/src/org/eclipse/jgit/http/server/GitSmartHttpTools.java b/org.eclipse.jgit.http.server/src/org/eclipse/jgit/http/server/GitSmartHttpTools.java
index ab4d0da34..92d575c2d 100644
--- a/org.eclipse.jgit.http.server/src/org/eclipse/jgit/http/server/GitSmartHttpTools.java
+++ b/org.eclipse.jgit.http.server/src/org/eclipse/jgit/http/server/GitSmartHttpTools.java
@@ -297,6 +297,7 @@ public class GitSmartHttpTools {
 
 	private static void writeSideBand(OutputStream out, String textForGit)
 			throws IOException {
+		@SuppressWarnings("resource" /* java 7 */)
 		OutputStream msg = new SideBandOutputStream(CH_ERROR, SMALL_BUF, out);
 		msg.write(Constants.encode("error: " + textForGit));
 		msg.flush();
diff --git a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/debug/ShowPackDelta.java b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/debug/ShowPackDelta.java
index c852d4163..fa9fd6e68 100644
--- a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/debug/ShowPackDelta.java
+++ b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/debug/ShowPackDelta.java
@@ -119,6 +119,7 @@ class ShowPackDelta extends TextBuiltin {
 			ptr++;
 		ptr++;
 
+		@SuppressWarnings("resource" /* java 7 */)
 		TemporaryBuffer.Heap raw = new TemporaryBuffer.Heap(bufArray.length);
 		InflaterInputStream inf = new InflaterInputStream(
 				new ByteArrayInputStream(bufArray, ptr, bufArray.length));
diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/api/CheckoutCommandTest.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/api/CheckoutCommandTest.java
index b75d0bdc4..3f0bc043a 100644
--- a/org.eclipse.jgit.test/tst/org/eclipse/jgit/api/CheckoutCommandTest.java
+++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/api/CheckoutCommandTest.java
@@ -162,8 +162,9 @@ public class CheckoutCommandTest extends RepositoryTestCase {
 		} catch (IOException e) {
 			// the test makes only sense if deletion of
 			// a file with open stream fails
+		} finally {
+			fis.close();
 		}
-		fis.close();
 		FileUtils.delete(testFile);
 		CheckoutCommand co = git.checkout();
 		// delete Test.txt in branch test
diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/storage/file/FileRepositoryBuilderTest.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/storage/file/FileRepositoryBuilderTest.java
index b6377482d..8f3f48829 100644
--- a/org.eclipse.jgit.test/tst/org/eclipse/jgit/storage/file/FileRepositoryBuilderTest.java
+++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/storage/file/FileRepositoryBuilderTest.java
@@ -112,6 +112,7 @@ public class FileRepositoryBuilderTest extends LocalDiskRepositoryTestCase {
 		}
 	}
 
+	@SuppressWarnings("resource" /* java 7 */)
 	@Test
 	public void absoluteGitDirRef() throws Exception {
 		FileRepository repo1 = createWorkRepository();
@@ -129,6 +130,7 @@ public class FileRepositoryBuilderTest extends LocalDiskRepositoryTestCase {
 		assertEquals(dir, repo2.getWorkTree());
 	}
 
+	@SuppressWarnings("resource" /* java 7 */)
 	@Test
 	public void relativeGitDirRef() throws Exception {
 		FileRepository repo1 = createWorkRepository();
@@ -147,6 +149,7 @@ public class FileRepositoryBuilderTest extends LocalDiskRepositoryTestCase {
 		assertEquals(dir, repo2.getWorkTree());
 	}
 
+	@SuppressWarnings("resource" /* java 7 */)
 	@Test
 	public void scanWithGitDirRef() throws Exception {
 		FileRepository repo1 = createWorkRepository();
diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/submodule/SubmoduleWalkTest.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/submodule/SubmoduleWalkTest.java
index cb3c7d88f..baa0d094d 100644
--- a/org.eclipse.jgit.test/tst/org/eclipse/jgit/submodule/SubmoduleWalkTest.java
+++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/submodule/SubmoduleWalkTest.java
@@ -128,6 +128,7 @@ public class SubmoduleWalkTest extends RepositoryTestCase {
 		assertFalse(gen.next());
 	}
 
+	@SuppressWarnings("resource" /* java 7 */)
 	@Test
 	public void repositoryWithRootLevelSubmoduleAbsoluteRef()
 			throws IOException, ConfigInvalidException {
@@ -176,6 +177,7 @@ public class SubmoduleWalkTest extends RepositoryTestCase {
 		assertFalse(gen.next());
 	}
 
+	@SuppressWarnings("resource" /* java 7 */)
 	@Test
 	public void repositoryWithRootLevelSubmoduleRelativeRef()
 			throws IOException, ConfigInvalidException {
diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/transport/SideBandOutputStreamTest.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/transport/SideBandOutputStreamTest.java
index 2924297de..717a58bcb 100644
--- a/org.eclipse.jgit.test/tst/org/eclipse/jgit/transport/SideBandOutputStreamTest.java
+++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/transport/SideBandOutputStreamTest.java
@@ -78,8 +78,9 @@ public class SideBandOutputStreamTest {
 
 	@Test
 	public void testWrite_CH_DATA() throws IOException {
-		final SideBandOutputStream out;
-		out = new SideBandOutputStream(CH_DATA, SMALL_BUF, rawOut);
+		@SuppressWarnings("resource" /* java 7 */)
+		final SideBandOutputStream out = new SideBandOutputStream(CH_DATA,
+				SMALL_BUF, rawOut);
 		out.write(new byte[] { 'a', 'b', 'c' });
 		out.flush();
 		assertBuffer("0008\001abc");
@@ -87,8 +88,9 @@ public class SideBandOutputStreamTest {
 
 	@Test
 	public void testWrite_CH_PROGRESS() throws IOException {
-		final SideBandOutputStream out;
-		out = new SideBandOutputStream(CH_PROGRESS, SMALL_BUF, rawOut);
+		@SuppressWarnings("resource" /* java 7 */)
+		final SideBandOutputStream out = new SideBandOutputStream(CH_PROGRESS,
+				SMALL_BUF, rawOut);
 		out.write(new byte[] { 'a', 'b', 'c' });
 		out.flush();
 		assertBuffer("0008\002abc");
@@ -96,8 +98,9 @@ public class SideBandOutputStreamTest {
 
 	@Test
 	public void testWrite_CH_ERROR() throws IOException {
-		final SideBandOutputStream out;
-		out = new SideBandOutputStream(CH_ERROR, SMALL_BUF, rawOut);
+		@SuppressWarnings("resource" /* java 7 */)
+		final SideBandOutputStream out = new SideBandOutputStream(CH_ERROR,
+				SMALL_BUF, rawOut);
 		out.write(new byte[] { 'a', 'b', 'c' });
 		out.flush();
 		assertBuffer("0008\003abc");
@@ -105,8 +108,9 @@ public class SideBandOutputStreamTest {
 
 	@Test
 	public void testWrite_Small() throws IOException {
-		final SideBandOutputStream out;
-		out = new SideBandOutputStream(CH_DATA, SMALL_BUF, rawOut);
+		@SuppressWarnings("resource" /* java 7 */)
+		final SideBandOutputStream out = new SideBandOutputStream(CH_DATA,
+				SMALL_BUF, rawOut);
 		out.write('a');
 		out.write('b');
 		out.write('c');
@@ -116,8 +120,9 @@ public class SideBandOutputStreamTest {
 
 	@Test
 	public void testWrite_SmallBlocks1() throws IOException {
-		final SideBandOutputStream out;
-		out = new SideBandOutputStream(CH_DATA, 6, rawOut);
+		@SuppressWarnings("resource" /* java 7 */)
+		final SideBandOutputStream out = new SideBandOutputStream(CH_DATA, 6,
+				rawOut);
 		out.write('a');
 		out.write('b');
 		out.write('c');
@@ -127,8 +132,9 @@ public class SideBandOutputStreamTest {
 
 	@Test
 	public void testWrite_SmallBlocks2() throws IOException {
-		final SideBandOutputStream out;
-		out = new SideBandOutputStream(CH_DATA, 6, rawOut);
+		@SuppressWarnings("resource" /* java 7 */)
+		final SideBandOutputStream out = new SideBandOutputStream(CH_DATA, 6,
+				rawOut);
 		out.write(new byte[] { 'a', 'b', 'c' });
 		out.flush();
 		assertBuffer("0006\001a0006\001b0006\001c");
@@ -136,8 +142,9 @@ public class SideBandOutputStreamTest {
 
 	@Test
 	public void testWrite_SmallBlocks3() throws IOException {
-		final SideBandOutputStream out;
-		out = new SideBandOutputStream(CH_DATA, 7, rawOut);
+		@SuppressWarnings("resource" /* java 7 */)
+		final SideBandOutputStream out = new SideBandOutputStream(CH_DATA, 7,
+				rawOut);
 		out.write('a');
 		out.write(new byte[] { 'b', 'c' });
 		out.flush();
@@ -152,8 +159,9 @@ public class SideBandOutputStreamTest {
 			buf[i] = (byte) i;
 		}
 
-		final SideBandOutputStream out;
-		out = new SideBandOutputStream(CH_DATA, MAX_BUF, rawOut);
+		@SuppressWarnings("resource" /* java 7 */)
+		final SideBandOutputStream out = new SideBandOutputStream(CH_DATA,
+				MAX_BUF, rawOut);
 		out.write(buf);
 		out.flush();
 
@@ -167,6 +175,7 @@ public class SideBandOutputStreamTest {
 		}
 	}
 
+	@SuppressWarnings("resource" /* java 7 */)
 	@Test
 	public void testFlush() throws IOException {
 		final int[] flushCnt = new int[1];
diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/util/TemporaryBufferTest.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/util/TemporaryBufferTest.java
index 8b67532a9..5f5968dbc 100644
--- a/org.eclipse.jgit.test/tst/org/eclipse/jgit/util/TemporaryBufferTest.java
+++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/util/TemporaryBufferTest.java
@@ -353,6 +353,7 @@ public class TemporaryBufferTest {
 
 	@Test
 	public void testDestroyWhileOpen() throws IOException {
+		@SuppressWarnings("resource" /* java 7 */)
 		final TemporaryBuffer b = new TemporaryBuffer.LocalFile();
 		try {
 			b.write(new TestRng(getName())
@@ -411,6 +412,7 @@ public class TemporaryBufferTest {
 
 	@Test
 	public void testHeap() throws IOException {
+		@SuppressWarnings("resource" /* java 7 */)
 		final TemporaryBuffer b = new TemporaryBuffer.Heap(2 * 8 * 1024);
 		final byte[] r = new byte[8 * 1024];
 		b.write(r);
diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/util/io/EolCanonicalizingInputStreamTest.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/util/io/EolCanonicalizingInputStreamTest.java
index 52ad0139c..bd1524563 100644
--- a/org.eclipse.jgit.test/tst/org/eclipse/jgit/util/io/EolCanonicalizingInputStreamTest.java
+++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/util/io/EolCanonicalizingInputStreamTest.java
@@ -121,7 +121,9 @@ public class EolCanonicalizingInputStreamTest {
 			}
 
 			assertEquals(expected.length, read);
+			cis2.close();
 		}
+		cis1.close();
 	}
 
 	private static byte[] asBytes(String in) {
diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/util/io/UnionInputStreamTest.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/util/io/UnionInputStreamTest.java
index daebffbc1..c213157b3 100644
--- a/org.eclipse.jgit.test/tst/org/eclipse/jgit/util/io/UnionInputStreamTest.java
+++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/util/io/UnionInputStreamTest.java
@@ -69,6 +69,7 @@ public class UnionInputStreamTest {
 
 	@Test
 	public void testReadSingleBytes() throws IOException {
+		@SuppressWarnings("resource" /* java 7 */)
 		final UnionInputStream u = new UnionInputStream();
 
 		assertTrue(u.isEmpty());
@@ -101,6 +102,7 @@ public class UnionInputStreamTest {
 
 	@Test
 	public void testReadByteBlocks() throws IOException {
+		@SuppressWarnings("resource" /* java 7 */)
 		final UnionInputStream u = new UnionInputStream();
 		u.add(new ByteArrayInputStream(new byte[] { 1, 0, 2 }));
 		u.add(new ByteArrayInputStream(new byte[] { 3 }));
@@ -124,6 +126,7 @@ public class UnionInputStreamTest {
 
 	@Test
 	public void testArrayConstructor() throws IOException {
+		@SuppressWarnings("resource" /* java 7 */)
 		final UnionInputStream u = new UnionInputStream(
 				new ByteArrayInputStream(new byte[] { 1, 0, 2 }),
 				new ByteArrayInputStream(new byte[] { 3 }),
@@ -141,6 +144,7 @@ public class UnionInputStreamTest {
 
 	@Test
 	public void testMarkSupported() {
+		@SuppressWarnings("resource" /* java 7 */)
 		final UnionInputStream u = new UnionInputStream();
 		assertFalse(u.markSupported());
 		u.add(new ByteArrayInputStream(new byte[] { 1, 0, 2 }));
@@ -149,6 +153,7 @@ public class UnionInputStreamTest {
 
 	@Test
 	public void testSkip() throws IOException {
+		@SuppressWarnings("resource" /* java 7 */)
 		final UnionInputStream u = new UnionInputStream();
 		u.add(new ByteArrayInputStream(new byte[] { 1, 0, 2 }));
 		u.add(new ByteArrayInputStream(new byte[] { 3 }));
@@ -171,6 +176,7 @@ public class UnionInputStreamTest {
 
 	@Test
 	public void testAutoCloseDuringRead() throws IOException {
+		@SuppressWarnings("resource" /* java 7 */)
 		final UnionInputStream u = new UnionInputStream();
 		final boolean closed[] = new boolean[2];
 		u.add(new ByteArrayInputStream(new byte[] { 1 }) {
@@ -248,6 +254,7 @@ public class UnionInputStreamTest {
 				throw new IOException("Expected");
 			}
 		};
+		@SuppressWarnings("resource" /* java 7 */)
 		final UnionInputStream u = new UnionInputStream(
 				new ByteArrayInputStream(new byte[]{1,2,3}),
 				errorReadStream);
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/storage/file/GC.java b/org.eclipse.jgit/src/org/eclipse/jgit/storage/file/GC.java
index bf3a8a2b0..b0fab6f4b 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/storage/file/GC.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/storage/file/GC.java
@@ -662,6 +662,7 @@ public class GC {
 						JGitText.get().cannotCreateIndexfile, tmpIdx.getPath()));
 
 			// write the packfile
+			@SuppressWarnings("resource" /* java 7 */)
 			FileChannel channel = new FileOutputStream(tmpPack).getChannel();
 			OutputStream channelStream = Channels.newOutputStream(channel);
 			try {
@@ -673,6 +674,7 @@ public class GC {
 			}
 
 			// write the packindex
+			@SuppressWarnings("resource")
 			FileChannel idxChannel = new FileOutputStream(tmpIdx).getChannel();
 			OutputStream idxStream = Channels.newOutputStream(idxChannel);
 			try {
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/storage/file/ObjectDirectoryInserter.java b/org.eclipse.jgit/src/org/eclipse/jgit/storage/file/ObjectDirectoryInserter.java
index ffd5c4149..a9e403a16 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/storage/file/ObjectDirectoryInserter.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/storage/file/ObjectDirectoryInserter.java
@@ -146,6 +146,7 @@ class ObjectDirectoryInserter extends ObjectInserter {
 		}
 	}
 
+	@SuppressWarnings("resource" /* java 7 */)
 	private File toTemp(final MessageDigest md, final int type, long len,
 			final InputStream is) throws IOException, FileNotFoundException,
 			Error {
@@ -185,6 +186,7 @@ class ObjectDirectoryInserter extends ObjectInserter {
 		}
 	}
 
+	@SuppressWarnings("resource" /* java 7 */)
 	private File toTemp(final int type, final byte[] buf, final int pos,
 			final int len) throws IOException, FileNotFoundException {
 		boolean delete = true;
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/transport/UploadPack.java b/org.eclipse.jgit/src/org/eclipse/jgit/transport/UploadPack.java
index c7a94b29e..c2cda5498 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/transport/UploadPack.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/transport/UploadPack.java
@@ -1079,7 +1079,7 @@ public class UploadPack {
 
 	private boolean reportInternalServerErrorOverSideband() {
 		try {
-			@SuppressWarnings("resource")
+			@SuppressWarnings("resource" /* java 7 */)
 			SideBandOutputStream err = new SideBandOutputStream(
 					SideBandOutputStream.CH_ERROR,
 					SideBandOutputStream.SMALL_BUF,
@@ -1121,7 +1121,7 @@ public class UploadPack {
 		} catch (ServiceMayNotContinueException noPack) {
 			if (sideband && noPack.getMessage() != null) {
 				noPack.setOutput();
-				@SuppressWarnings("resource")
+				@SuppressWarnings("resource" /* java 7 */)
 				SideBandOutputStream err = new SideBandOutputStream(
 						SideBandOutputStream.CH_ERROR,
 						SideBandOutputStream.SMALL_BUF, rawOut);
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/util/IO.java b/org.eclipse.jgit/src/org/eclipse/jgit/util/IO.java
index 4abe4a875..0975cd3b4 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/util/IO.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/util/IO.java
@@ -216,6 +216,7 @@ public class IO {
 		if (last < 0)
 			return ByteBuffer.wrap(out, 0, pos);
 
+		@SuppressWarnings("resource" /* java 7 */)
 		TemporaryBuffer.Heap tmp = new TemporaryBuffer.Heap(Integer.MAX_VALUE);
 		tmp.write(out);
 		tmp.write(last);