We are using gitlab-plugin to pushes statuses back to GitLab server and evaluating gitlab-branch-source-plugin for our need.

Pipeline is failing with: "Null pointer exception" and prior that failure in Jenkins maser log:

...
org.gitlab4j.api.GitLabApiException: Cannot transition status via :run from :running (Reason(s): Status cannot transition via "run")
...

in pipeline we have something like that:

..
  steps {
    gitlabCommitStatus(STAGE_NAME) {
      container('deploy') {
         sh 'mvn deploy'
   }

When I remove all "gitlabCommitStatus(STAGE_NAME)

java.lang.NullPointerException
at org.eclipse.jgit.lib.ObjectId.fromString(ObjectId.java:235)
at com.dabsquared.gitlabjenkins.util.CommitStatusUpdater.retrieveGitlabProjectIds(CommitStatusUpdater.java:195)
at com.dabsquared.gitlabjenkins.util.CommitStatusUpdater.updateCommitStatus(CommitStatusUpdater.java:61)
at com.dabsquared.gitlabjenkins.util.CommitStatusUpdater.updateCommitStatus(CommitStatusUpdater.java:97)
at com.dabsquared.gitlabjenkins.workflow.GitLabBuildsStep$GitLabBuildStepExecution$1.onStart(GitLabBuildsStep.java:85)
at org.jenkinsci.plugins.workflow.cps.CpsBodyExecution.launch(CpsBodyExecution.java:135)
at org.jenkinsci.plugins.workflow.cps.CpsBodyInvoker.launch(CpsBodyInvoker.java:187)
at org.jenkinsci.plugins.workflow.cps.DSL$ThreadTaskImpl.lambda$invokeBodiesAndSwitchToAsyncMode$0(DSL.java:660)
at org.jenkinsci.plugins.workflow.cps.CpsStepContext.withBodyInvokers(CpsStepContext.java:537)
at org.jenkinsci.plugins.workflow.cps.DSL$ThreadTaskImpl.invokeBodiesAndSwitchToAsyncMode(DSL.java:650)
at org.jenkinsci.plugins.workflow.cps.DSL$ThreadTaskImpl.eval(DSL.java:615)
at org.jenkinsci.plugins.workflow.cps.CpsThread.runNextChunk(CpsThread.java:195)
at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup.run(CpsThreadGroup.java:405)
at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup.access$400(CpsThreadGroup.java:96)
at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup$2.call(CpsThreadGroup.java:317)
at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup$2.call(CpsThreadGroup.java:281)
at org.jenkinsci.plugins.workflow.cps.CpsVmExecutorService$2.call(CpsVmExecutorService.java:67)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at hudson.remoting.SingleLaneExecutorService$1.run(SingleLaneExecutorService.java:131)
at jenkins.util.ContextResettingExecutorService$1.run(ContextResettingExecutorService.java:28)
at jenkins.security.ImpersonatingExecutorService$1.run(ImpersonatingExecutorService.java:59)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Finished: FAILURE