Merge branch 'stable-4.2'

* stable-4.2:
  NoteMapTest: Open TreeWalk instances in try-with-resource
  ObjectDirectoryTest: Fix warnings about variable hiding
  PackWriterTest: Open RevWalk in try-with-resource
  PatchIdDiffFormatterTest: Open Git and PatchIdDiffFormatter in try-with-resource
  PathSuffixFilterTest: Open TreeWalk in try-with-resource
  PostOrderTreeWalkTest: Open TreeWalk in try-with-resource
  PullCommandWithRebaseTest: Open RevWalk in try-with-resource
  PushCommandTest: Open Git instances in try-with-resource
  RacyGitTests: Open NameConflictTreeWalk in try-with-resource
  RecursiveMergerTest: Open TreeWalk and BufferedReader in try-with-resource
  ReflogConfigTest: refactor commit method to avoid variable hiding
  Update .mailmap
  RefDirectoryTest: Fix warning about member variable hiding
  ReflogResolveTest: Open Git instances in try-with-resource
  ReflogTest: Open Git instances in try-with-resource
  RepoCommandTest: Open Git instances in try-with-resource

Change-Id: I7964b699396629e31a9cc5600aedcf4be4e659a8
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

.mailmap

@@ -1,5 +1,6 @@
+Roberto Tyley <roberto.tyley@guardian.co.uk> roberto <roberto.tyley@guardian.co.uk>
+Saša Živkov <sasa.zivkov@sap.com>            Sasa Zivkov <sasa.zivkov@sap.com>
+Saša Živkov <sasa.zivkov@sap.com>            Saša Živkov <zivkov@gmail.com>
 Shawn Pearce <spearce@spearce.org>           Shawn O. Pearce <sop@google.com>
 Shawn Pearce <spearce@spearce.org>           Shawn Pearce <sop@google.com>
 Shawn Pearce <spearce@spearce.org>           Shawn O. Pearce <spearce@spearce.org>
-Saša Živkov <sasa.zivkov@sap.com>	Sasa Zivkov <sasa.zivkov@sap.com>
-Saša Živkov <sasa.zivkov@sap.com>	Saša Živkov <zivkov@gmail.com>

org.eclipse.jgit.pgm.test/tst/org/eclipse/jgit/pgm/ReflogTest.java

@@ -57,15 +57,17 @@ public class ReflogTest extends CLIRepositoryTestCase {
 
 	@Test
 	public void testSingleCommit() throws Exception {
-		new Git(db).commit().setMessage("initial commit").call();
+		try (Git git = new Git(db)) {
+			git.commit().setMessage("initial commit").call();
 
 			assertEquals("6fd41be HEAD@{0}: commit (initial): initial commit",
 					execute("git reflog")[0]);
 		}
+	}
 
 	@Test
 	public void testBranch() throws Exception {
-		Git git = new Git(db);
+		try (Git git = new Git(db)) {
 			git.commit().setMessage("first commit").call();
 			git.checkout().setCreateBranch(true).setName("side").call();
 			writeTrashFile("file", "side content");
@@ -77,4 +79,5 @@ public class ReflogTest extends CLIRepositoryTestCase {
 					"d216986 side@{1}: branch: Created from commit first commit",
 					"" }, execute("git reflog refs/heads/side"));
 		}
+	}
 }

org.eclipse.jgit.test/tst/org/eclipse/jgit/api/PullCommandWithRebaseTest.java

@@ -273,7 +273,7 @@ public class PullCommandWithRebaseTest extends RepositoryTestCase {
 
 		// Get the HEAD and HEAD~1 commits
 		Repository targetRepo = target.getRepository();
-		RevWalk revWalk = new RevWalk(targetRepo);
+		try (RevWalk revWalk = new RevWalk(targetRepo)) {
 			ObjectId headId = targetRepo.resolve(Constants.HEAD);
 			RevCommit root = revWalk.parseCommit(headId);
 			revWalk.markStart(root);
@@ -294,6 +294,7 @@ public class PullCommandWithRebaseTest extends RepositoryTestCase {
 			assertEquals(RepositoryState.SAFE, target
 				.getRepository().getRepositoryState());
 		}
+	}
 
 	@Override
 	@Before

org.eclipse.jgit.test/tst/org/eclipse/jgit/api/PushCommandTest.java

@@ -90,7 +90,7 @@ public class PushCommandTest extends RepositoryTestCase {
 		remoteConfig.update(config);
 		config.save();
 
-		Git git1 = new Git(db);
+		try (Git git1 = new Git(db)) {
 			// create some refs via commits and tag
 			RevCommit commit = git1.commit().setMessage("initial commit").call();
 			Ref tagRef = git1.tag().setName("tag").call();
@@ -111,6 +111,7 @@ public class PushCommandTest extends RepositoryTestCase {
 			assertEquals(tagRef.getObjectId(),
 					db2.resolve(tagRef.getObjectId().getName()));
 		}
+	}
 
 	@Test
 	public void testPrePushHook() throws JGitInternalException, IOException,
@@ -132,7 +133,7 @@ public class PushCommandTest extends RepositoryTestCase {
 				+ hookOutput.toPath() + "\"\ncat - >>\"" + hookOutput.toPath()
 				+ "\"\nexit 0");
 
-		Git git1 = new Git(db);
+		try (Git git1 = new Git(db)) {
 			// create some refs via commits and tag
 			RevCommit commit = git1.commit().setMessage("initial commit").call();
 
@@ -142,6 +143,7 @@ public class PushCommandTest extends RepositoryTestCase {
 					+ commit.getName() + " refs/heads/x "
 					+ ObjectId.zeroId().name(), read(hookOutput));
 		}
+	}
 
 	private File writeHookFile(final String name, final String data)
 			throws IOException {
@@ -160,8 +162,7 @@ public class PushCommandTest extends RepositoryTestCase {
 		String branch = "refs/heads/master";
 		String trackingBranch = "refs/remotes/" + remote + "/master";
 
-		Git git = new Git(db);
-
+		try (Git git = new Git(db)) {
 			RevCommit commit1 = git.commit().setMessage("Initial commit")
 					.call();
 
@@ -200,6 +201,7 @@ public class PushCommandTest extends RepositoryTestCase {
 			assertEquals(commit2.getId(), db.resolve(trackingBranch));
 			assertEquals(commit2.getId(), db2.resolve(branch));
 		}
+	}
 
 	/**
 	 * Check that pushes over file protocol lead to appropriate ref-updates.
@@ -208,9 +210,8 @@ public class PushCommandTest extends RepositoryTestCase {
 	 */
 	@Test
 	public void testPushRefUpdate() throws Exception {
-		Git git = new Git(db);
-		Git git2 = new Git(createBareRepository());
-
+		try (Git git = new Git(db);
+				Git git2 = new Git(createBareRepository())) {
 			final StoredConfig config = git.getRepository().getConfig();
 			RemoteConfig remoteConfig = new RemoteConfig(config, "test");
 			URIish uri = new URIish(git2.getRepository().getDirectory().toURI()
@@ -232,7 +233,6 @@ public class PushCommandTest extends RepositoryTestCase {
 			git.branchCreate().setName("refs/heads/test").call();
 			git.checkout().setName("refs/heads/test").call();
 
-
 			for (int i = 0; i < 6; i++) {
 				writeTrashFile("f" + i, "content of f" + i);
 				git.add().addFilepattern("f" + i).call();
@@ -241,7 +241,7 @@ public class PushCommandTest extends RepositoryTestCase {
 				git2.getRepository().getAllRefs();
 				assertEquals("failed to update on attempt " + i, commit.getId(),
 						git2.getRepository().resolve("refs/heads/test"));
-
+			}
 		}
 	}
 
@@ -252,9 +252,8 @@ public class PushCommandTest extends RepositoryTestCase {
 	 */
 	@Test
 	public void testPushWithRefSpecFromConfig() throws Exception {
-		Git git = new Git(db);
-		Git git2 = new Git(createBareRepository());
-
+		try (Git git = new Git(db);
+				Git git2 = new Git(createBareRepository())) {
 			final StoredConfig config = git.getRepository().getConfig();
 			RemoteConfig remoteConfig = new RemoteConfig(config, "test");
 			URIish uri = new URIish(git2.getRepository().getDirectory().toURI()
@@ -272,8 +271,7 @@ public class PushCommandTest extends RepositoryTestCase {
 			git.push().setRemote("test").call();
 			assertEquals(commit.getId(),
 					git2.getRepository().resolve("refs/heads/newbranch"));
-
-
+		}
 	}
 
 	/**
@@ -283,9 +281,8 @@ public class PushCommandTest extends RepositoryTestCase {
 	 */
 	@Test
 	public void testPushWithoutPushRefSpec() throws Exception {
-		Git git = new Git(db);
-		Git git2 = new Git(createBareRepository());
-
+		try (Git git = new Git(db);
+				Git git2 = new Git(createBareRepository())) {
 			final StoredConfig config = git.getRepository().getConfig();
 			RemoteConfig remoteConfig = new RemoteConfig(config, "test");
 			URIish uri = new URIish(git2.getRepository().getDirectory().toURI()
@@ -314,7 +311,7 @@ public class PushCommandTest extends RepositoryTestCase {
 			assertEquals(null, git2.getRepository()
 					.resolve("refs/heads/not-pushed"));
 			assertEquals(null, git2.getRepository().resolve("refs/heads/master"));
-
+		}
 	}
 
 	/**
@@ -335,9 +332,8 @@ public class PushCommandTest extends RepositoryTestCase {
 		remoteConfig.update(config);
 		config.save();
 
-		Git git1 = new Git(db);
-		Git git2 = new Git(db2);
-
+		try (Git git1 = new Git(db);
+				Git git2 = new Git(db2)) {
 			// push master (with a new commit) to the remote
 			git1.commit().setMessage("initial commit").call();
 
@@ -382,4 +378,5 @@ public class PushCommandTest extends RepositoryTestCase {
 			assertEquals(commit3.getId(),
 					db2.resolve(commit3.getId().getName() + "^{commit}"));
 		}
+	}
 }

org.eclipse.jgit.test/tst/org/eclipse/jgit/diff/PatchIdDiffFormatterTest.java

@@ -61,12 +61,12 @@ public class PatchIdDiffFormatterTest extends RepositoryTestCase {
 		File folder = new File(db.getDirectory().getParent(), "folder");
 		folder.mkdir();
 		write(new File(folder, "folder.txt"), "folder");
-		Git git = new Git(db);
+		try (Git git = new Git(db);
+				PatchIdDiffFormatter df = new PatchIdDiffFormatter()) {
 			git.add().addFilepattern(".").call();
 			git.commit().setMessage("Initial commit").call();
 			write(new File(folder, "folder.txt"), "folder change");
 
-		PatchIdDiffFormatter df = new PatchIdDiffFormatter();
 			df.setRepository(db);
 			df.setPathFilter(PathFilter.create("folder"));
 			DirCacheIterator oldTree = new DirCacheIterator(db.readDirCache());
@@ -77,6 +77,7 @@ public class PatchIdDiffFormatterTest extends RepositoryTestCase {
 			assertEquals("1ff64e0f9333e9b81967c3e8d7a81362b14d5441", df
 					.getCalulatedPatchId().name());
 		}
+	}
 
 	@Test
 	public void testSameDiff() throws Exception {
@@ -84,12 +85,12 @@ public class PatchIdDiffFormatterTest extends RepositoryTestCase {
 		File folder = new File(db.getDirectory().getParent(), "folder");
 		folder.mkdir();
 		write(new File(folder, "folder.txt"), "\n\n\n\nfolder");
-		Git git = new Git(db);
+		try (Git git = new Git(db)) {
 			git.add().addFilepattern(".").call();
 			git.commit().setMessage("Initial commit").call();
 			write(new File(folder, "folder.txt"), "\n\n\n\nfolder change");
 
-		PatchIdDiffFormatter df = new PatchIdDiffFormatter();
+			try (PatchIdDiffFormatter df = new PatchIdDiffFormatter()) {
 				df.setRepository(db);
 				df.setPathFilter(PathFilter.create("folder"));
 				DirCacheIterator oldTree = new DirCacheIterator(db.readDirCache());
@@ -99,22 +100,25 @@ public class PatchIdDiffFormatterTest extends RepositoryTestCase {
 
 				assertEquals("08fca5ac531383eb1da8bf6b6f7cf44411281407", df
 						.getCalulatedPatchId().name());
+			}
 
 			write(new File(folder, "folder.txt"), "a\n\n\n\nfolder");
 			git.add().addFilepattern(".").call();
 			git.commit().setMessage("Initial commit").call();
 			write(new File(folder, "folder.txt"), "a\n\n\n\nfolder change");
 
-		df = new PatchIdDiffFormatter();
+			try (PatchIdDiffFormatter df = new PatchIdDiffFormatter()) {
 				df.setRepository(db);
 				df.setPathFilter(PathFilter.create("folder"));
-		oldTree = new DirCacheIterator(db.readDirCache());
-		newTree = new FileTreeIterator(db);
+				DirCacheIterator oldTree = new DirCacheIterator(db.readDirCache());
+				FileTreeIterator newTree = new FileTreeIterator(db);
 				df.format(oldTree, newTree);
 				df.flush();
 
 				assertEquals("08fca5ac531383eb1da8bf6b6f7cf44411281407", df
 						.getCalulatedPatchId().name());
 			}
+		}
+	}
 
 }

org.eclipse.jgit.test/tst/org/eclipse/jgit/gitrepo/RepoCommandTest.java

@@ -82,7 +82,7 @@ public class RepoCommandTest extends RepositoryTestCase {
 		super.setUp();
 
 		defaultDb = createWorkRepository();
-		Git git = new Git(defaultDb);
+		try (Git git = new Git(defaultDb)) {
 			JGitTestUtil.writeTrashFile(defaultDb, "hello.txt", "branch world");
 			git.add().addFilepattern("hello.txt").call();
 			oldCommitId = git.commit().setMessage("Initial commit").call().getId();
@@ -93,27 +93,31 @@ public class RepoCommandTest extends RepositoryTestCase {
 			git.add().addFilepattern("hello.txt").call();
 			git.commit().setMessage("Second commit").call();
 			addRepoToClose(defaultDb);
+		}
 
 		notDefaultDb = createWorkRepository();
-		git = new Git(notDefaultDb);
+		try (Git git = new Git(notDefaultDb)) {
 			JGitTestUtil.writeTrashFile(notDefaultDb, "world.txt", "hello");
 			git.add().addFilepattern("world.txt").call();
 			git.commit().setMessage("Initial commit").call();
 			addRepoToClose(notDefaultDb);
+		}
 
 		groupADb = createWorkRepository();
-		git = new Git(groupADb);
+		try (Git git = new Git(groupADb)) {
 			JGitTestUtil.writeTrashFile(groupADb, "a.txt", "world");
 			git.add().addFilepattern("a.txt").call();
 			git.commit().setMessage("Initial commit").call();
 			addRepoToClose(groupADb);
+		}
 
 		groupBDb = createWorkRepository();
-		git = new Git(groupBDb);
+		try (Git git = new Git(groupBDb)) {
 			JGitTestUtil.writeTrashFile(groupBDb, "b.txt", "world");
 			git.add().addFilepattern("b.txt").call();
 			git.commit().setMessage("Initial commit").call();
 			addRepoToClose(groupBDb);
+		}
 
 		resolveRelativeUris();
 	}

org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/file/ObjectDirectoryTest.java

@@ -62,18 +62,18 @@ public class ObjectDirectoryTest extends RepositoryTestCase {
 			throws Exception {
 		ExecutorService e = Executors.newCachedThreadPool();
 		for (int i=0; i < 100; ++i) {
-			ObjectDirectory db = createBareRepository().getObjectDatabase();
-			for (Future f : e.invokeAll(blobInsertersForTheSameFanOutDir(db))) {
+			ObjectDirectory dir = createBareRepository().getObjectDatabase();
+			for (Future f : e.invokeAll(blobInsertersForTheSameFanOutDir(dir))) {
 				f.get();
 			}
 		}
 	}
 
 	private Collection<Callable<ObjectId>> blobInsertersForTheSameFanOutDir(
-			final ObjectDirectory db) {
+			final ObjectDirectory dir) {
 		Callable<ObjectId> callable = new Callable<ObjectId>() {
 			public ObjectId call() throws Exception {
-				return db.newInserter().insert(Constants.OBJ_BLOB, new byte[0]);
+				return dir.newInserter().insert(Constants.OBJ_BLOB, new byte[0]);
 			}
 		};
 		return Collections.nCopies(4, callable);

org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/file/PackWriterTest.java

@@ -342,12 +342,13 @@ public class PackWriterTest extends SampleDataRepositoryTestCase {
 				ObjectId.fromString("902d5476fa249b7abc9d84c611577a81381f0327"),
 				ObjectId.fromString("5b6e7c66c276e7610d4a73c70ec1a1f7c1003259"),
 				ObjectId.fromString("6ff87c4664981e4397625791c8ea3bbb5f2279a3") };
-		final RevWalk parser = new RevWalk(db);
+		try (final RevWalk parser = new RevWalk(db)) {
 			final RevObject forcedOrderRevs[] = new RevObject[forcedOrder.length];
 			for (int i = 0; i < forcedOrder.length; i++)
 				forcedOrderRevs[i] = parser.parseAny(forcedOrder[i]);
 
 			createVerifyOpenPack(Arrays.asList(forcedOrderRevs));
+		}
 
 		assertEquals(forcedOrder.length, writer.getObjectCount());
 		verifyObjectsOrder(forcedOrder);

org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/file/RefDirectoryTest.java

@@ -1444,8 +1444,8 @@ public class RefDirectoryTest extends LocalDiskRepositoryTestCase {
 			// empty
 		}
 
-		public void beginTask(String title, int totalWork) {
-			this.totalWork = totalWork;
+		public void beginTask(String title, int total) {
+			this.totalWork = total;
 			lastWork = 0;
 		}
 

org.eclipse.jgit.test/tst/org/eclipse/jgit/lib/RacyGitTests.java

@@ -82,7 +82,7 @@ public class RacyGitTests extends RepositoryTestCase {
 		}
 		FileTreeIteratorWithTimeControl fileIt = new FileTreeIteratorWithTimeControl(
 				db, modTimes);
-		NameConflictTreeWalk tw = new NameConflictTreeWalk(db);
+		try (NameConflictTreeWalk tw = new NameConflictTreeWalk(db)) {
 			tw.addTree(fileIt);
 			tw.setRecursive(true);
 			FileTreeIterator t;
@@ -90,11 +90,12 @@ public class RacyGitTests extends RepositoryTestCase {
 			for (int i = 0; i < 10; i++) {
 				assertTrue(tw.next());
 				t = tw.getTree(0, FileTreeIterator.class);
-			if (i == 0)
+				if (i == 0) {
 					t0 = t.getEntryLastModified();
-			else
+				} else {
 					assertEquals(t0, t.getEntryLastModified());
 				}
+			}
 			long t1 = 0;
 			for (int i = 0; i < 10; i++) {
 				assertTrue(tw.next());
@@ -102,9 +103,10 @@ public class RacyGitTests extends RepositoryTestCase {
 				if (i == 0) {
 					t1 = t.getEntryLastModified();
 					assertTrue(t1 > t0);
-			} else
+				} else {
 					assertEquals(t1, t.getEntryLastModified());
 				}
+			}
 			long t2 = 0;
 			for (int i = 0; i < 10; i++) {
 				assertTrue(tw.next());
@@ -112,10 +114,12 @@ public class RacyGitTests extends RepositoryTestCase {
 				if (i == 0) {
 					t2 = t.getEntryLastModified();
 					assertTrue(t2 > t1);
-			} else
+				} else {
 					assertEquals(t2, t.getEntryLastModified());
 				}
 			}
+		}
+	}
 
 	public void testRacyGitDetection() throws IOException,
 			IllegalStateException, InterruptedException {

org.eclipse.jgit.test/tst/org/eclipse/jgit/lib/ReflogConfigTest.java

@@ -70,8 +70,7 @@ public class ReflogConfigTest extends RepositoryTestCase {
 
 		// do one commit and check that reflog size is 0: no reflogs should be
 		// written
-		commit("A Commit\n", new PersonIdent(author, commitTime, tz),
-				new PersonIdent(committer, commitTime, tz));
+		commit("A Commit\n", commitTime, tz);
 		commitTime += 60 * 1000;
 		assertTrue(
 				"Reflog for HEAD still contain no entry",
@@ -83,8 +82,7 @@ public class ReflogConfigTest extends RepositoryTestCase {
 		assertTrue(cfg.get(CoreConfig.KEY).isLogAllRefUpdates());
 
 		// do one commit and check that reflog size is increased to 1
-		commit("A Commit\n", new PersonIdent(author, commitTime, tz),
-				new PersonIdent(committer, commitTime, tz));
+		commit("A Commit\n", commitTime, tz);
 		commitTime += 60 * 1000;
 		assertTrue(
 				"Reflog for HEAD should contain one entry",
@@ -96,18 +94,17 @@ public class ReflogConfigTest extends RepositoryTestCase {
 		assertFalse(cfg.get(CoreConfig.KEY).isLogAllRefUpdates());
 
 		// do one commit and check that reflog size is 2
-		commit("A Commit\n", new PersonIdent(author, commitTime, tz),
-				new PersonIdent(committer, commitTime, tz));
+		commit("A Commit\n", commitTime, tz);
 		assertTrue(
 				"Reflog for HEAD should contain two entries",
 				db.getReflogReader(Constants.HEAD).getReverseEntries().size() == 2);
 	}
 
-	private void commit(String commitMsg, PersonIdent author,
-			PersonIdent committer) throws IOException {
+	private void commit(String commitMsg, long commitTime, int tz)
+			throws IOException {
 		final CommitBuilder commit = new CommitBuilder();
-		commit.setAuthor(author);
-		commit.setCommitter(committer);
+		commit.setAuthor(new PersonIdent(author, commitTime, tz));
+		commit.setCommitter(new PersonIdent(committer, commitTime, tz));
 		commit.setMessage(commitMsg);
 		ObjectId id;
 		try (ObjectInserter inserter = db.newObjectInserter()) {

org.eclipse.jgit.test/tst/org/eclipse/jgit/lib/ReflogResolveTest.java

@@ -60,7 +60,7 @@ public class ReflogResolveTest extends RepositoryTestCase {
 
 	@Test
 	public void resolveMasterCommits() throws Exception {
-		Git git = new Git(db);
+		try (Git git = new Git(db)) {
 			writeTrashFile("file.txt", "content");
 			git.add().addFilepattern("file.txt").call();
 			RevCommit c1 = git.commit().setMessage("create file").call();
@@ -71,10 +71,11 @@ public class ReflogResolveTest extends RepositoryTestCase {
 			assertEquals(c2, db.resolve("master@{0}"));
 			assertEquals(c1, db.resolve("master@{1}"));
 		}
+	}
 
 	@Test
 	public void resolveUnnamedCurrentBranchCommits() throws Exception {
-		Git git = new Git(db);
+		try (Git git = new Git(db)) {
 			writeTrashFile("file.txt", "content");
 			git.add().addFilepattern("file.txt").call();
 			RevCommit c1 = git.commit().setMessage("create file").call();
@@ -103,10 +104,11 @@ public class ReflogResolveTest extends RepositoryTestCase {
 			assertEquals(c1, db.resolve("@{1}"));
 			assertEquals(c2, db.resolve("@{2}"));
 		}
+	}
 
 	@Test
 	public void resolveReflogParent() throws Exception {
-		Git git = new Git(db);
+		try (Git git = new Git(db)) {
 			writeTrashFile("file.txt", "content");
 			git.add().addFilepattern("file.txt").call();
 			RevCommit c1 = git.commit().setMessage("create file").call();
@@ -116,19 +118,21 @@ public class ReflogResolveTest extends RepositoryTestCase {
 
 			assertEquals(c1, db.resolve("master@{0}~1"));
 		}
+	}
 
 	@Test
 	public void resolveNonExistingBranch() throws Exception {
-		Git git = new Git(db);
+		try (Git git = new Git(db)) {
 			writeTrashFile("file.txt", "content");
 			git.add().addFilepattern("file.txt").call();
 			git.commit().setMessage("create file").call();
 			assertNull(db.resolve("notabranch@{7}"));
 		}
+	}
 
 	@Test
 	public void resolvePreviousBranch() throws Exception {
-		Git git = new Git(db);
+		try (Git git = new Git(db)) {
 			writeTrashFile("file.txt", "content");
 			git.add().addFilepattern("file.txt").call();
 			RevCommit c1 = git.commit().setMessage("create file").call();
@@ -159,10 +163,11 @@ public class ReflogResolveTest extends RepositoryTestCase {
 
 			assertEquals(c2.getName(), db.resolve("@{-3}@{0}").getName());
 		}
+	}
 
 	@Test
 	public void resolveDate() throws Exception {
-		Git git = new Git(db);
+		try (Git git = new Git(db)) {
 			writeTrashFile("file.txt", "content");
 			git.add().addFilepattern("file.txt").call();
 			git.commit().setMessage("create file").call();
@@ -173,4 +178,5 @@ public class ReflogResolveTest extends RepositoryTestCase {
 				assertNotNull(e);
 			}
 		}
+	}
 }

org.eclipse.jgit.test/tst/org/eclipse/jgit/merge/RecursiveMergerTest.java

@@ -872,32 +872,31 @@ public class RecursiveMergerTest extends RepositoryTestCase {
 
 	private String contentAsString(Repository r, ObjectId treeId, String path)
 			throws MissingObjectException, IOException {
-		TreeWalk tw = new TreeWalk(r);
+		AnyObjectId blobId;
+		try (TreeWalk tw = new TreeWalk(r)) {
 			tw.addTree(treeId);
 			tw.setFilter(PathFilter.create(path));
 			tw.setRecursive(true);
-		if (!tw.next())
+			if (!tw.next()) {
 				return null;
-		AnyObjectId blobId = tw.getObjectId(0);
+			}
+			blobId = tw.getObjectId(0);
+		}
 
 		StringBuilder result = new StringBuilder();
-		BufferedReader br = null;
 		ObjectReader or = r.newObjectReader();
-		try {
-			br = new BufferedReader(new InputStreamReader(or.open(blobId)
-					.openStream()));
+		try (BufferedReader br = new BufferedReader(
+				new InputStreamReader(or.open(blobId).openStream()))) {
 			String line;
 			boolean first = true;
 			while ((line = br.readLine()) != null) {
-				if (!first)
+				if (!first) {
 					result.append('\n');
+				}
 				result.append(line);
 				first = false;
 			}
 			return result.toString();
-		} finally {
-			if (br != null)
-				br.close();
 		}
 	}
 }

org.eclipse.jgit.test/tst/org/eclipse/jgit/notes/NoteMapTest.java

@@ -403,10 +403,12 @@ public class NoteMapTest extends RepositoryTestCase {
 		}
 
 		RevCommit n = commitNoteMap(map);
-		TreeWalk tw = new TreeWalk(reader);
+		try (TreeWalk tw = new TreeWalk(reader)) {
 			tw.reset(n.getTree());
-		while (tw.next())
+			while (tw.next()) {
 				assertFalse("no fan-out subtree", tw.isSubtree());
+			}
+		}
 
 		for (int i = 254; i < 256; i++) {
 			idBuf.setByte(Constants.OBJECT_ID_LENGTH - 1, i);
@@ -418,14 +420,16 @@ public class NoteMapTest extends RepositoryTestCase {
 
 		// The 00 bucket is fully split.
 		String path = fanout(38, idBuf.name());
-		tw = TreeWalk.forPath(reader, path, n.getTree());
+		try (TreeWalk tw = TreeWalk.forPath(reader, path, n.getTree())) {
 			assertNotNull("has " + path, tw);
+		}
 
 		// The other bucket is not.
 		path = fanout(2, data1.name());
-		tw = TreeWalk.forPath(reader, path, n.getTree());
+		try (TreeWalk tw = TreeWalk.forPath(reader, path, n.getTree())) {
 			assertNotNull("has " + path, tw);
 		}
+	}
 
 	@Test
 	public void testRemoveDeletesTreeFanout2_38() throws Exception {

org.eclipse.jgit.test/tst/org/eclipse/jgit/treewalk/PostOrderTreeWalkTest.java

@@ -60,23 +60,25 @@ import org.junit.Test;
 public class PostOrderTreeWalkTest extends RepositoryTestCase {
 	@Test
 	public void testInitialize_NoPostOrder() throws Exception {
-		final TreeWalk tw = new TreeWalk(db);
+		try (final TreeWalk tw = new TreeWalk(db)) {
 			assertFalse(tw.isPostOrderTraversal());
 		}
+	}
 
 	@Test
 	public void testInitialize_TogglePostOrder() throws Exception {
-		final TreeWalk tw = new TreeWalk(db);
+		try (final TreeWalk tw = new TreeWalk(db)) {
 			assertFalse(tw.isPostOrderTraversal());
 			tw.setPostOrderTraversal(true);
 			assertTrue(tw.isPostOrderTraversal());
 			tw.setPostOrderTraversal(false);
 			assertFalse(tw.isPostOrderTraversal());
 		}
+	}
 
 	@Test
 	public void testResetDoesNotAffectPostOrder() throws Exception {
-		final TreeWalk tw = new TreeWalk(db);
+		try (final TreeWalk tw = new TreeWalk(db)) {
 			tw.setPostOrderTraversal(true);
 			assertTrue(tw.isPostOrderTraversal());
 			tw.reset();
@@ -87,11 +89,11 @@ public class PostOrderTreeWalkTest extends RepositoryTestCase {
 			tw.reset();
 			assertFalse(tw.isPostOrderTraversal());
 		}
+	}
 
 	@Test
 	public void testNoPostOrder() throws Exception {
 		final DirCache tree = db.readDirCache();
-		{
 		final DirCacheBuilder b = tree.builder();
 
 		b.add(makeFile("a"));
@@ -101,9 +103,8 @@ public class PostOrderTreeWalkTest extends RepositoryTestCase {
 
 		b.finish();
 		assertEquals(4, tree.getEntryCount());
-		}
 
-		final TreeWalk tw = new TreeWalk(db);
+		try (final TreeWalk tw = new TreeWalk(db)) {
 			tw.setPostOrderTraversal(false);
 			tw.addTree(new DirCacheIterator(tree));
 
@@ -116,11 +117,11 @@ public class PostOrderTreeWalkTest extends RepositoryTestCase {
 			assertModes("b/d", REGULAR_FILE, tw);
 			assertModes("q", REGULAR_FILE, tw);
 		}
+	}
 
 	@Test
 	public void testWithPostOrder_EnterSubtree() throws Exception {
 		final DirCache tree = db.readDirCache();
-		{
 		final DirCacheBuilder b = tree.builder();
 
 		b.add(makeFile("a"));
@@ -130,9 +131,8 @@ public class PostOrderTreeWalkTest extends RepositoryTestCase {
 
 		b.finish();
 		assertEquals(4, tree.getEntryCount());
-		}
 
-		final TreeWalk tw = new TreeWalk(db);
+		try (final TreeWalk tw = new TreeWalk(db)) {
 			tw.setPostOrderTraversal(true);
 			tw.addTree(new DirCacheIterator(tree));
 
@@ -151,11 +151,11 @@ public class PostOrderTreeWalkTest extends RepositoryTestCase {
 
 			assertModes("q", REGULAR_FILE, tw);
 		}
+	}
 
 	@Test
 	public void testWithPostOrder_NoEnterSubtree() throws Exception {
 		final DirCache tree = db.readDirCache();
-		{
 		final DirCacheBuilder b = tree.builder();
 
 		b.add(makeFile("a"));
@@ -165,9 +165,8 @@ public class PostOrderTreeWalkTest extends RepositoryTestCase {
 
 		b.finish();
 		assertEquals(4, tree.getEntryCount());
-		}
 
-		final TreeWalk tw = new TreeWalk(db);
+		try (final TreeWalk tw = new TreeWalk(db)) {
 			tw.setPostOrderTraversal(true);
 			tw.addTree(new DirCacheIterator(tree));
 
@@ -179,6 +178,7 @@ public class PostOrderTreeWalkTest extends RepositoryTestCase {
 
 			assertModes("q", REGULAR_FILE, tw);
 		}
+	}
 
 	private DirCacheEntry makeFile(final String path) throws Exception {
 		return createEntry(path, REGULAR_FILE);

org.eclipse.jgit.test/tst/org/eclipse/jgit/treewalk/filter/PathSuffixFilterTest.java

@@ -113,7 +113,7 @@ public class PathSuffixFilterTest extends RepositoryTestCase {
 
 	private List<String> getMatchingPaths(String suffixFilter,
 			final ObjectId treeId, boolean recursiveWalk) throws IOException {
-		final TreeWalk tw = new TreeWalk(db);
+		try (final TreeWalk tw = new TreeWalk(db)) {
 			tw.setFilter(PathSuffixFilter.create(suffixFilter));
 			tw.setRecursive(recursiveWalk);
 			tw.addTree(treeId);
@@ -123,5 +123,6 @@ public class PathSuffixFilterTest extends RepositoryTestCase {
 				paths.add(tw.getPathString());
 			return paths;
 		}
+	}
 
 }