IndexModificationTimesTest: Open Git instances in try-with-resource

Change-Id: If52c071b71f5df822b1ac276a6f665515f6c9d00
Signed-off-by: David Pursehouse <david.pursehouse@sonymobile.com>

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

@@ -49,7 +49,7 @@ public class IndexModificationTimesTest extends RepositoryTestCase {
 
 	@Test
 	public void testLastModifiedTimes() throws Exception {
-		Git git = new Git(db);
+		try (Git git = new Git(db)) {
 			String path = "file";
 			writeTrashFile(path, "content");
 			String path2 = "file2";
@@ -83,10 +83,11 @@ public class IndexModificationTimesTest extends RepositoryTestCase {
 			assertTrue("last modified shall not be zero!",
 					entry2.getLastModified() != 0);
 		}
+	}
 
 	@Test
 	public void testModify() throws Exception {
-		Git git = new Git(db);
+		try (Git git = new Git(db)) {
 			String path = "file";
 			writeTrashFile(path, "content");
 
@@ -122,7 +123,7 @@ public class IndexModificationTimesTest extends RepositoryTestCase {
 			assertTrue("shall have equal mod time!", masterLastMod == sideLastMode);
 			assertTrue("shall not equal master timestamp!",
 					entry.getLastModified() == masterLastMod);
-
+		}
 	}
 
 }