Basil Crow added a comment - 2020-03-13 04:15 FYI, I hit this on a recent upgrade. My stack trace: 2020-03-13 02:09:40.575+0000 [id=1502] WARNING o.j.p.w.f.FlowExecutionList$ItemListenerImpl$1#onFailure: Failed to load CpsFlowExecution[Owner[devops-gate/master/blackbox-self-service/25907:devops-gate/master/blackbox-self-service #25907]] java.lang.NullPointerException at org.jenkinsci.plugins.workflow.steps.TimeoutStepExecution.cancel(TimeoutStepExecution.java:151) at org.jenkinsci.plugins.workflow.steps.TimeoutStepExecution.setupTimer(TimeoutStepExecution.java:139) at org.jenkinsci.plugins.workflow.steps.TimeoutStepExecution.onResume(TimeoutStepExecution.java:90) at org.jenkinsci.plugins.workflow.flow.FlowExecutionList$ItemListenerImpl$1.onSuccess(FlowExecutionList.java:185) at org.jenkinsci.plugins.workflow.flow.FlowExecutionList$ItemListenerImpl$1.onSuccess(FlowExecutionList.java:180) at com.google.common.util.concurrent.Futures$6.run(Futures.java:975) at com.google.common.util.concurrent.MoreExecutors$SameThreadExecutorService.execute(MoreExecutors.java:253) at com.google.common.util.concurrent.ExecutionList$RunnableExecutorPair.execute(ExecutionList.java:149) at com.google.common.util.concurrent.ExecutionList.execute(ExecutionList.java:134) at com.google.common.util.concurrent.AbstractFuture.set(AbstractFuture.java:170) at com.google.common.util.concurrent.SettableFuture.set(SettableFuture.java:53) at org.jenkinsci.plugins.workflow.cps.CpsFlowExecution$5.onSuccess(CpsFlowExecution.java:1011) at org.jenkinsci.plugins.workflow.cps.CpsFlowExecution$5.onSuccess(CpsFlowExecution.java:989) at org.jenkinsci.plugins.workflow.cps.CpsFlowExecution$4$1.run(CpsFlowExecution.java:907) at org.jenkinsci.plugins.workflow.cps.CpsVmExecutorService$1.run(CpsVmExecutorService.java:38) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) 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)

Devin Nusbaum added a comment - 2020-04-17 20:05 Thanks for the report! I'm going to close this as a duplicate of  JENKINS-42940 , which is the same issue, but I have a PR on the way to fix it.