Jenkins build became unstable: Hadoop-Hdfs-0.23-Build #256

See https://builds.apache.org/job/Hadoop-Hdfs-0.23-Build/256/

Build failed in Jenkins: Hadoop-Hdfs-trunk #1043

See https://builds.apache.org/job/Hadoop-Hdfs-trunk/1043/ -- [...truncated 11367 lines...] Generating

Hadoop-Hdfs-trunk - Build # 1043 - Still Failing

See https://builds.apache.org/job/Hadoop-Hdfs-trunk/1043/ ### ## LAST 60 LINES OF THE CONSOLE ### [...truncated 11560 lines...] [INFO] canGenerate is false [INFO]