ArchiveCommandTest: Create Git instances in try-with-resource

Change-Id: Icbfd92395db85818736142fd3fb3432385e89ca9
Signed-off-by: David Pursehouse <david.pursehouse@sonymobile.com>

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

@@ -85,7 +85,7 @@ public class ArchiveCommandTest extends RepositoryTestCase {
 
 	@Test
 	public void archiveHeadAllFiles() throws IOException, GitAPIException {
-		Git git = new Git(db);
+		try (Git git = new Git(db)) {
 			writeTrashFile("file_1.txt", "content_1_1");
 			git.add().addFilepattern("file_1.txt").call();
 			git.commit().setMessage("create file").call();
@@ -103,10 +103,11 @@ public class ArchiveCommandTest extends RepositoryTestCase {
 			assertEquals(UNEXPECTED_FILE_CONTENTS, "content_1_2", format.getByPath("file_1.txt"));
 			assertEquals(UNEXPECTED_FILE_CONTENTS, "content_2_2", format.getByPath("file_2.txt"));
 		}
+	}
 
 	@Test
 	public void archiveHeadSpecificPath() throws IOException, GitAPIException {
-		Git git = new Git(db);
+		try (Git git = new Git(db)) {
 			writeTrashFile("file_1.txt", "content_1_1");
 			git.add().addFilepattern("file_1.txt").call();
 			git.commit().setMessage("create file").call();
@@ -126,10 +127,11 @@ public class ArchiveCommandTest extends RepositoryTestCase {
 			assertEquals(UNEXPECTED_FILE_CONTENTS, "content_2_2", format.getByPath(expectedFilePath));
 			assertNull(UNEXPECTED_TREE_CONTENTS, format.getByPath("some_directory"));
 		}
+	}
 
 	@Test
 	public void archiveByIdSpecificFile() throws IOException, GitAPIException {
-		Git git = new Git(db);
+		try (Git git = new Git(db)) {
 			writeTrashFile("file_1.txt", "content_1_1");
 			git.add().addFilepattern("file_1.txt").call();
 			RevCommit first = git.commit().setMessage("create file").call();
@@ -154,10 +156,11 @@ public class ArchiveCommandTest extends RepositoryTestCase {
 			assertEquals(UNEXPECTED_ARCHIVE_SIZE, 1, format.size());
 			assertEquals(UNEXPECTED_FILE_CONTENTS, "content_1_1", format.getByPath("file_1.txt"));
 		}
+	}
 
 	@Test
 	public void archiveByDirectoryPath() throws GitAPIException, IOException {
-		Git git = new Git(db);
+		try (Git git = new Git(db)) {
 			writeTrashFile("file_0.txt", "content_0_1");
 			git.add().addFilepattern("file_0.txt").call();
 			git.commit().setMessage("commit_1").call();
@@ -183,6 +186,7 @@ public class ArchiveCommandTest extends RepositoryTestCase {
 			assertNull(UNEXPECTED_TREE_CONTENTS, format.getByPath("some_directory"));
 			assertNull(UNEXPECTED_TREE_CONTENTS, format.getByPath("some_directory/nested_directory"));
 		}
+	}
 
 	private class MockFormat implements ArchiveCommand.Format<MockOutputStream> {