Fix NPE in CommitOnlyTest#getHead

Change-Id: I05abd00d151cf9834d1a097dd16dc280b62a7edd
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/api/CommitOnlyTest.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/api/CommitOnlyTest.java
index bbd6ec0bde84c0d1ed4e5c8c31183a61769aa9bc..43c00518a61013945e73a214ff79754e737add21 100644 (file)
--- a/org.eclipse.jgit.test/tst/org/eclipse/jgit/api/CommitOnlyTest.java
+++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/api/CommitOnlyTest.java
@@ -1294,9 +1294,15 @@ public class CommitOnlyTest extends RepositoryTestCase {
                try {
                        final Repository repo = git.getRepository();
                        final ObjectId headId = repo.resolve(Constants.HEAD + "^{commit}");
+                       if (headId == null) {
+                               return "";
+                       }
                        try (RevWalk rw = new RevWalk(repo)) {
                                final TreeWalk tw = TreeWalk.forPath(repo, path,
                                                rw.parseTree(headId));
+                               if (tw == null) {
+                                       return "";
+                               }
                                return new String(tw.getObjectReader().open(tw.getObjectId(0))
                                                .getBytes());
                        }