[infer] Fix resource leaks in RebaseCommand

Bug: 509385
Change-Id: I9fbdfda59f7bc577aab55dc92ff897b00b5cb050
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

org.eclipse.jgit/src/org/eclipse/jgit/api/RebaseCommand.java

@@ -400,8 +400,8 @@ public class RebaseCommand extends GitCommand<RebaseResult> {
 		boolean conflicts = false;
 		if (rebaseState.getFile(AUTOSTASH).exists()) {
 			String stash = rebaseState.readFile(AUTOSTASH);
-			try {
-				Git.wrap(repo).stashApply().setStashRef(stash)
+			try (Git git = Git.wrap(repo)) {
+				git.stashApply().setStashRef(stash)
 						.ignoreRepositoryState(true).setStrategy(strategy)
 						.call();
 			} catch (StashApplyFailureException e) {
@@ -463,8 +463,10 @@ public class RebaseCommand extends GitCommand<RebaseResult> {
 			String oldMessage = commitToPick.getFullMessage();
 			String newMessage = interactiveHandler
 					.modifyCommitMessage(oldMessage);
-			newHead = new Git(repo).commit().setMessage(newMessage)
-					.setAmend(true).setNoVerify(true).call();
+			try (Git git = new Git(repo)) {
+				newHead = git.commit().setMessage(newMessage).setAmend(true)
+						.setNoVerify(true).call();
+			}
 			return null;
 		case EDIT:
 			rebaseState.createFile(AMEND, commitToPick.name());
@@ -753,12 +755,12 @@ public class RebaseCommand extends GitCommand<RebaseResult> {
 			GitAPIException, CheckoutConflictException {
 		Ref ref = repo.exactRef(Constants.ORIG_HEAD);
 		ObjectId orig_head = ref == null ? null : ref.getObjectId();
-		try {
-			// we have already commited the cherry-picked commit.
+		try (Git git = Git.wrap(repo)) {
+			// we have already committed the cherry-picked commit.
 			// what we need is to have changes introduced by this
 			// commit to be on the index
 			// resetting is a workaround
-			Git.wrap(repo).reset().setMode(ResetType.SOFT)
+			git.reset().setMode(ResetType.SOFT)
 					.setRef("HEAD~1").call(); //$NON-NLS-1$
 		} finally {
 			// set ORIG_HEAD back to where we started because soft