Sorry about cross posting, but this will impact all developers and I wanted to give you all a heads-up.
HADOOP-9112<https://issues.apache.org/jira/browse/HADOOP-9112> was just checked it. This means that the pre commit build will now give a –1 for any patch with junit tests that do not include a timeout option. See http://junit.sourceforge.net/javadoc/org/junit/Test.html for more info on that. This is to avoid surefire timing out junit when it gets stuck and not giving any real feedback on which test failed.