"No JDK named ?(Default)? found" when running a test with jenkins

[Amit Aviram]

Hello, I've uploaded a patch with gerrit and jenkins returned the following error to me:



Triggered by Gerrit: http://gerrit.ovirt.org/34555
No JDK named ?(Default)? found
Building remotely on os1-rhel6-vm02 (el6 centos6 os1) in workspace /home/jenkins/workspace/ovirt-engine_master_unit-tests_gerrit

Deleting project workspace... FATAL: hudson.remoting.RequestAbortedException: hudson.remoting.Channel$OrderlyShutdown: java.util.concurrent.TimeoutException: Ping started on 1414929198741 hasn't completed at 1414929438742
hudson.remoting.RequestAbortedException: hudson.remoting.RequestAbortedException: hudson.remoting.Channel$OrderlyShutdown: java.util.concurrent.TimeoutException: Ping started on 1414929198741 hasn't completed at 1414929438742
	at hudson.remoting.RequestAbortedException.wrapForRethrow(RequestAbortedException.java:41)
	at hudson.remoting.RequestAbortedException.wrapForRethrow(RequestAbortedException.java:34)
	at hudson.remoting.Request.call(Request.java:174)
	at hudson.remoting.Channel.call(Channel.java:739)
	at hudson.FilePath.act(FilePath.java:911)
	at hudson.FilePath.act(FilePath.java:895)
	at hudson.FilePath.exists(FilePath.java:1343)
	at hudson.plugins.ws_cleanup.PreBuildCleanup.preCheckout(PreBuildCleanup.java:89)
	at jenkins.scm.SCMCheckoutStrategy.preCheckout(SCMCheckoutStrategy.java:76)
	at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:529)
	at hudson.model.Run.execute(Run.java:1740)
	at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)
	at hudson.model.ResourceController.execute(ResourceController.java:88)
	at hudson.model.Executor.run(Executor.java:234)
Caused by: hudson.remoting.RequestAbortedException: hudson.remoting.Channel$OrderlyShutdown: java.util.concurrent.TimeoutException: Ping started on 1414929198741 hasn't completed at 1414929438742
	at hudson.remoting.Request.abort(Request.java:299)
	at hudson.remoting.Channel.terminate(Channel.java:802)
	at hudson.remoting.Channel$CloseCommand.execute(Channel.java:951)
	at hudson.remoting.Channel$2.handle(Channel.java:475)
	at hudson.remoting.SynchronousCommandTransport$ReaderThread.run(SynchronousCommandTransport.java:60)
Caused by: hudson.remoting.Channel$OrderlyShutdown: java.util.concurrent.TimeoutException: Ping started on 1414929198741 hasn't completed at 1414929438742
	... 3 more
Caused by: Command close created at
	at hudson.remoting.Command.<init>(Command.java:56)
	at hudson.remoting.Channel$CloseCommand.<init>(Channel.java:945)
	at hudson.remoting.Channel$CloseCommand.<init>(Channel.java:943)
	at hudson.remoting.Channel.close(Channel.java:1026)
	at hudson.slaves.ChannelPinger$1.onDead(ChannelPinger.java:110)
	at hudson.remoting.PingThread.ping(PingThread.java:120)
	at hudson.remoting.PingThread.run(PingThread.java:81)
Caused by: java.util.concurrent.TimeoutException: Ping started on 1414929198741 hasn't completed at 1414929438742
	... 2 more


I believe this is because one of the VMs does not have a JDK installed?
thank you, Amit.