Fix NPE on ClaimPublisher Pipeline step

https://qa.nuxeo.org/jenkins/job/master/job/nuxeo-master-sonar/job/PR-2349/1/consoleText

First time build. Skipping changelog.
[Pipeline] properties
[Pipeline] node
Running on Docker-slave-db0b0bf4bbf1-qa-ovh03.nuxeo.com in /opt/jenkins/workspace/_nuxeo-master-sonar_PR-2349-QPFCT6A665QHXY54EYZRLZPP3JCLJOVA6ALLRP76IDYCQUZMVGNA
[Pipeline] {
[Pipeline] echo
Using BRANCH_NAME parameter: PR-2349
[Pipeline] echo
Using CHANGE_TARGET parameter: master
[Pipeline] echo
Testing branch 'PR-2349' with parent branch 'master'
[Pipeline] tool
[Pipeline] tool
[Pipeline] tool
[Pipeline] timeout
Timeout set to expire in 5 hr 0 min
[Pipeline] {
[Pipeline] timestamps
[Pipeline] {
[Pipeline] stage
[Pipeline] { (clone)
[Pipeline] sh
[_nuxeo-master-sonar_PR-2349-QPFCT6A665QHXY54EYZRLZPP3JCLJOVA6ALLRP76IDYCQUZMVGNA] Running shell script
+ git ls-remote --exit-code git://github.com/nuxeo/nuxeo.git

[Pipeline] git
Cloning the remote Git repository
Cloning repository git://github.com/nuxeo/nuxeo.git
 > git init /opt/jenkins/workspace/_nuxeo-master-sonar_PR-2349-QPFCT6A665QHXY54EYZRLZPP3JCLJOVA6ALLRP76IDYCQUZMVGNA # timeout=10
Fetching upstream changes from git://github.com/nuxeo/nuxeo.git
 > git --version # timeout=10
 > git fetch --tags --progress git://github.com/nuxeo/nuxeo.git +refs/heads/*:refs/remotes/origin/*
 > git config remote.origin.url git://github.com/nuxeo/nuxeo.git # timeout=10
 > git config --add remote.origin.fetch +refs/heads/*:refs/remotes/origin/* # timeout=10
 > git config remote.origin.url git://github.com/nuxeo/nuxeo.git # timeout=10
Fetching upstream changes from git://github.com/nuxeo/nuxeo.git
 > git fetch --tags --progress git://github.com/nuxeo/nuxeo.git +refs/heads/*:refs/remotes/origin/*
 > git rev-parse refs/remotes/origin/$BRANCH^{commit} # timeout=10
 > git rev-parse refs/remotes/origin/origin/$BRANCH^{commit} # timeout=10
 > git rev-parse origin/$BRANCH^{commit} # timeout=10
[Pipeline] }
[Pipeline] // stage
[Pipeline] step
[Pipeline] }
[Pipeline] // timestamps
[Pipeline] }
[Pipeline] // timeout
[Pipeline] }
[Pipeline] // node
[Pipeline] End of Pipeline

GitHub has been notified of this commit’s build result

java.lang.NullPointerException
	at hudson.plugins.claim.ClaimPublisher.perform(ClaimPublisher.java:62)
	at org.jenkinsci.plugins.workflow.steps.CoreStep$Execution.run(CoreStep.java:78)
	at org.jenkinsci.plugins.workflow.steps.CoreStep$Execution.run(CoreStep.java:65)
	at org.jenkinsci.plugins.workflow.steps.SynchronousNonBlockingStepExecution$1$1.call(SynchronousNonBlockingStepExecution.java:49)
	at hudson.security.ACL.impersonate(ACL.java:213)
	at org.jenkinsci.plugins.workflow.steps.SynchronousNonBlockingStepExecution$1.run(SynchronousNonBlockingStepExecution.java:46)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Finished: FAILURE