Build failed in Jenkins: Hama-Nightly #308

[Apache Jenkins Server]

See <https://builds.apache.org/job/Hama-Nightly/308/>

------------------------------------------
Started by timer
Building remotely on solaris2
java.io.IOException: Failed to mkdirs: 
<https://builds.apache.org/job/Hama-Nightly/ws/>
        at hudson.FilePath.mkdirs(FilePath.java:817)
        at hudson.model.AbstractProject.checkout(AbstractProject.java:1191)
        at 
hudson.model.AbstractBuild$AbstractRunner.checkout(AbstractBuild.java:555)
        at hudson.model.AbstractBuild$AbstractRunner.run(AbstractBuild.java:443)
        at hudson.model.Run.run(Run.java:1376)
        at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:46)
        at hudson.model.ResourceController.execute(ResourceController.java:88)
        at hudson.model.Executor.run(Executor.java:230)