Bug 1149372

Description of problem:
When jenkins is updated to 1.565.3 (the latest LTS release).  Everything appears to work correctly until jenkins attempts to schedule a build.

Version-Release number of selected component (if applicable):
jenkins-1.565.3-1.el6oso.noarch
jenkins-plugin-openshift-0.6.38-0.el6oso.x86_64
openshift-origin-cartridge-jenkins-1.25.1-1.el6oso.noarch
openshift-origin-cartridge-jenkins-client-1.25.1-1.el6oso.noarch


How reproducible:
100%

Steps to Reproduce:
rhc app create jenkins -a jenkins1
rhc app create testjenkins1 perl-5.10
rhc cartridge-add Jenkins --app testjenkins1
cd testjenkins1
vi index.pl
# Change "<title>Welcome to OpenShift</title>" to "<title>Welcome to JenkinsTest1</title>"
git commit -m "testing" -a
git push

Actual results:
$ git push
Counting objects: 5, done.
Delta compression using up to 4 threads.
Compressing objects: 100% (3/3), done.
Writing objects: 100% (3/3), 294 bytes, done.
Total 3 (delta 2), reused 0 (delta 0)
remote: Executing Jenkins build.
remote: 
remote: You can track your build at https://jenkins1-<domain>.rhcloud.com/job/testjenkins1-build
remote: 
remote: Waiting for build to schedule.......
remote: **BUILD FAILED/CANCELLED**
remote: Please see the Jenkins log for more details via 'rhc tail'
remote: !!!!!!!!
remote: Deployment Halted!
remote: If the build failed before the deploy step, your previous
remote: build is still running.  Otherwise, your application may be
remote: partially deployed or inaccessible.
remote: Fix the build and try again.
remote: !!!!!!!!
remote: An error occurred executing 'gear postreceive' (exit code: 1)
remote: Error message: CLIENT_ERROR: Failed to execute: 'control post-receive' for /var/lib/openshift/<UUID>/jenkins-client
remote: 
remote: For more details about the problem, try running the command again with the '--trace' option.
To ssh://<UUID>@testjenkins1-<domain>.rhcloud.com/~/git/testjenkins1.git/
   963ad48..0a029ca  master -> master


Expected results:
$ git push
Counting objects: 5, done.
Delta compression using up to 4 threads.
Compressing objects: 100% (3/3), done.
Writing objects: 100% (3/3), 296 bytes, done.
Total 3 (delta 2), reused 0 (delta 0)
remote: Executing Jenkins build.
remote: 
remote: You can track your build at https://jenkins1-<domain>.rhcloud.com/job/testjenkins1-build
remote: 
remote: Waiting for build to schedule..................................Done
remote: Waiting for job to complete..........................Done
remote: SUCCESS
remote: New build has been deployed.
remote: -------------------------
remote: Git Post-Receive Result: success
remote: Deployment completed with status: success
To ssh://<UUID>@testjenkins1-<domain>.rhcloud.com/~/git/testjenkins1.git/
   699fc75..caa2d1c  master -> master


Additional info:
Doing a rhc tail on the jenkins app give the following.

Oct 03, 2014 5:02:57 PM hudson.plugins.openshift.OpenShiftCloud provision
INFO: Provisioning new node for workload = 2 and label = null in domain tdawsontest
Oct 03, 2014 5:02:57 PM hudson.plugins.openshift.OpenShiftCloud provision
INFO: Cancelling build - Label is null
Oct 03, 2014 5:02:57 PM hudson.plugins.openshift.OpenShiftCloud cancelBuild
INFO: Cancelling build
Oct 03, 2014 5:02:57 PM hudson.plugins.openshift.OpenShiftCloud cancelItem
INFO: Cancelling Item 
Oct 03, 2014 5:02:57 PM hudson.plugins.openshift.OpenShiftCloud cancelItem
WARNING: Build null rawbldr has been canceled
Oct 03, 2014 5:02:57 PM hudson.triggers.SafeTimerTask run
SEVERE: Timer task hudson.slaves.NodeProvisioner$NodeProvisionerInvoker@209d8e failed
java.lang.UnsupportedOperationException: No Label
	at hudson.plugins.openshift.OpenShiftCloud.provision(OpenShiftCloud.java:402)
	at hudson.slaves.NodeProvisioner.update(NodeProvisioner.java:281)
	at hudson.slaves.NodeProvisioner.access$000(NodeProvisioner.java:51)
	at hudson.slaves.NodeProvisioner$NodeProvisionerInvoker.doRun(NodeProvisioner.java:366)
	at hudson.triggers.SafeTimerTask.run(SafeTimerTask.java:54)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
	at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:304)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:745)