Looks like Hudson is falling down on the job again. Manual test-patch:
[exec] -1 overall.
[exec] +1 @author. The patch does not contain any @author tags.
[exec] -1 tests included. The patch doesn't appear to include any new or modified tests.
[exec] Please justify why no new tests are needed for this patch.
[exec] Also please list what manual steps were performed to verify this patch.
[exec] +1 javadoc. The javadoc tool did not generate any warning messages.
[exec] +1 javac. The applied patch does not increase the total number of javac compiler warnings.
[exec] +1 findbugs. The patch does not introduce any new Findbugs warnings.
[exec] +1 release audit. The applied patch does not increase the total number of release audit warnings.
No tests as explained above. Tests all pass locally except known-bad TestHDFSTrash. Will commit to trunk and 21.