i feel like this is a no-brainer, but there might be some regexps for jenkins that could break or something else i'm not aware of:
Index: lucene/common-build.xml =================================================================== --- lucene/common-build.xml (revision 1497957) +++ lucene/common-build.xml (working copy) @@ -869,6 +869,7 @@ <mkdir dir="${tests.cachedir}/${name}" /> <junit4:junit4 + taskName="junit4" dir="@{workDir}" tempdir="@{workDir}/temp" maxmemory="${tests.heapsize}"