Make JGit test work with both hamcrest 1.1 (juno) and 1.3 (kepler)

The hamcrest library has moved things around. This problem applies only
to the test, not plugin runtime.

Change-Id: I5b97f356d8595dbdc9e91d157558e40561a6a30d
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

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

@@ -44,7 +44,7 @@
 package org.eclipse.jgit.api;
 
 import static org.hamcrest.MatcherAssert.assertThat;
-import static org.hamcrest.Matchers.is;
+import static org.hamcrest.CoreMatchers.is;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertNotNull;

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

@@ -43,8 +43,8 @@
 package org.eclipse.jgit.api;
 
 import static org.hamcrest.MatcherAssert.assertThat;
-import static org.hamcrest.Matchers.equalTo;
-import static org.hamcrest.Matchers.not;
+import static org.hamcrest.CoreMatchers.equalTo;
+import static org.hamcrest.CoreMatchers.not;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertNotNull;

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

@@ -37,8 +37,7 @@
  */
 package org.eclipse.jgit.lib;
 
-import static org.hamcrest.Matchers.startsWith;
-import static org.junit.Assert.assertThat;
+import static org.junit.Assert.assertTrue;
 import static org.junit.Assert.fail;
 
 import java.io.File;
@@ -399,7 +398,7 @@ public class DirCacheCheckoutMaliciousPathTest extends RepositoryTestCase {
 		} catch (InvalidPathException e) {
 			if (good)
 				throw e;
-			assertThat(e.getMessage(), startsWith("Invalid path: "));
+			assertTrue(e.getMessage().startsWith("Invalid path: "));
 		}
 	}
 

org.eclipse.jgit.test/tst/org/eclipse/jgit/util/FileUtilTest.java

@@ -43,8 +43,6 @@
 
 package org.eclipse.jgit.util;
 
-import static org.hamcrest.MatcherAssert.assertThat;
-import static org.hamcrest.Matchers.endsWith;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertTrue;
@@ -332,7 +330,7 @@ public class FileUtilTest {
 			FileUtils.delete(t, FileUtils.EMPTY_DIRECTORIES_ONLY | FileUtils.RECURSIVE);
 			fail("expected failure to delete f");
 		} catch (IOException e) {
-			assertThat(e.getMessage(), endsWith(f.getAbsolutePath()));
+			assertTrue(e.getMessage().endsWith(f.getAbsolutePath()));
 		}
 		assertTrue(t.exists());
 	}