Matthias Pohl created FLINK-32945:
-------------------------------------

             Summary: NullPointerException when executing TopSpeedWindowing 
example with checkpointing enabled
                 Key: FLINK-32945
                 URL: https://issues.apache.org/jira/browse/FLINK-32945
             Project: Flink
          Issue Type: Bug
          Components: Runtime / Coordination
    Affects Versions: 1.18.0
            Reporter: Matthias Pohl
         Attachments: data.txt.gz

I tried running the TopSpeedWindowing example with a checkpoint interval of 10s 
and the data input file that I attached to this Jira. I run into the following 
NullPointerException:
{code}
2023-08-23 09:56:03,111 ERROR 
org.apache.flink.runtime.rpc.pekko.FencedPekkoRpcActor       [] - Error while 
executing remote procedure call public void 
org.apache.flink.runtime.jobmaster.JobMaster.notifyEndOfData(org.apache.flink.runtime.executiongraph.ExecutionAttemptID).
java.lang.reflect.InvocationTargetException: null
        at jdk.internal.reflect.GeneratedMethodAccessor20.invoke(Unknown 
Source) ~[?:?]
        at 
jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
 ~[?:?]
        at java.lang.reflect.Method.invoke(Method.java:568) ~[?:?]
        at 
org.apache.flink.runtime.rpc.pekko.PekkoRpcActor.lambda$handleRpcInvocation$0(PekkoRpcActor.java:301)
 ~[flink-rpc-akka4947976d-da31-483f-88c7-8f3ce057edfe.jar:1.18-SNAPSHOT]
        at 
org.apache.flink.runtime.concurrent.ClassLoadingUtils.runWithContextClassLoader(ClassLoadingUtils.java:83)
 ~[classes/:?]
        at 
org.apache.flink.runtime.rpc.pekko.PekkoRpcActor.handleRpcInvocation(PekkoRpcActor.java:300)
 ~[flink-rpc-akka4947976d-da31-483f-88c7-8f3ce057edfe.jar:1.18-SNAPSHOT]
        at 
org.apache.flink.runtime.rpc.pekko.PekkoRpcActor.handleRpcMessage(PekkoRpcActor.java:222)
 ~[flink-rpc-akka4947976d-da31-483f-88c7-8f3ce057edfe.jar:1.18-SNAPSHOT]
        at 
org.apache.flink.runtime.rpc.pekko.FencedPekkoRpcActor.handleRpcMessage(FencedPekkoRpcActor.java:85)
 ~[flink-rpc-akka4947976d-da31-483f-88c7-8f3ce057edfe.jar:1.18-SNAPSHOT]
        at 
org.apache.flink.runtime.rpc.pekko.PekkoRpcActor.handleMessage(PekkoRpcActor.java:168)
 ~[flink-rpc-akka4947976d-da31-483f-88c7-8f3ce057edfe.jar:1.18-SNAPSHOT]
        at 
org.apache.pekko.japi.pf.UnitCaseStatement.apply(CaseStatements.scala:33) 
[flink-rpc-akka4947976d-da31-483f-88c7-8f3ce057edfe.jar:1.18-SNAPSHOT]
        at 
org.apache.pekko.japi.pf.UnitCaseStatement.apply(CaseStatements.scala:29) 
[flink-rpc-akka4947976d-da31-483f-88c7-8f3ce057edfe.jar:1.18-SNAPSHOT]
        at scala.PartialFunction.applyOrElse(PartialFunction.scala:127) 
[flink-rpc-akka4947976d-da31-483f-88c7-8f3ce057edfe.jar:1.18-SNAPSHOT]
        at scala.PartialFunction.applyOrElse$(PartialFunction.scala:126) 
[flink-rpc-akka4947976d-da31-483f-88c7-8f3ce057edfe.jar:1.18-SNAPSHOT]
        at 
org.apache.pekko.japi.pf.UnitCaseStatement.applyOrElse(CaseStatements.scala:29) 
[flink-rpc-akka4947976d-da31-483f-88c7-8f3ce057edfe.jar:1.18-SNAPSHOT]
        at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:175) 
[flink-rpc-akka4947976d-da31-483f-88c7-8f3ce057edfe.jar:1.18-SNAPSHOT]
        at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:176) 
[flink-rpc-akka4947976d-da31-483f-88c7-8f3ce057edfe.jar:1.18-SNAPSHOT]
        at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:176) 
[flink-rpc-akka4947976d-da31-483f-88c7-8f3ce057edfe.jar:1.18-SNAPSHOT]
        at org.apache.pekko.actor.Actor.aroundReceive(Actor.scala:547) 
[flink-rpc-akka4947976d-da31-483f-88c7-8f3ce057edfe.jar:1.18-SNAPSHOT]
        at org.apache.pekko.actor.Actor.aroundReceive$(Actor.scala:545) 
[flink-rpc-akka4947976d-da31-483f-88c7-8f3ce057edfe.jar:1.18-SNAPSHOT]
        at 
org.apache.pekko.actor.AbstractActor.aroundReceive(AbstractActor.scala:229) 
[flink-rpc-akka4947976d-da31-483f-88c7-8f3ce057edfe.jar:1.18-SNAPSHOT]
        at org.apache.pekko.actor.ActorCell.receiveMessage(ActorCell.scala:590) 
[flink-rpc-akka4947976d-da31-483f-88c7-8f3ce057edfe.jar:1.18-SNAPSHOT]
        at org.apache.pekko.actor.ActorCell.invoke(ActorCell.scala:557) 
[flink-rpc-akka4947976d-da31-483f-88c7-8f3ce057edfe.jar:1.18-SNAPSHOT]
        at org.apache.pekko.dispatch.Mailbox.processMailbox(Mailbox.scala:280) 
[flink-rpc-akka4947976d-da31-483f-88c7-8f3ce057edfe.jar:1.18-SNAPSHOT]
        at org.apache.pekko.dispatch.Mailbox.run(Mailbox.scala:241) 
[flink-rpc-akka4947976d-da31-483f-88c7-8f3ce057edfe.jar:1.18-SNAPSHOT]
        at org.apache.pekko.dispatch.Mailbox.exec(Mailbox.scala:253) 
[flink-rpc-akka4947976d-da31-483f-88c7-8f3ce057edfe.jar:1.18-SNAPSHOT]
        at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:373) [?:?]
        at 
java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1182)
 [?:?]
        at java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1655) [?:?]
        at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1622) 
[?:?]
        at 
java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:165) 
[?:?]
Caused by: java.lang.NullPointerException: Cannot invoke 
"java.util.BitSet.set(int)" because "subtaskStatus" is null
        at 
org.apache.flink.runtime.scheduler.VertexEndOfDataListener.recordTaskEndOfData(VertexEndOfDataListener.java:51)
 ~[classes/:?]
        at 
org.apache.flink.runtime.scheduler.SchedulerBase.notifyEndOfData(SchedulerBase.java:1079)
 ~[classes/:?]
        at 
org.apache.flink.runtime.jobmaster.JobMaster.notifyEndOfData(JobMaster.java:508)
 ~[classes/:?]
        ... 30 more
{code}

I adapted the {{TopSpeedWindowing}} example slightly (see 
[gist|https://gist.github.com/XComp/8a2bae96c7d9312427ed71cbee5370c2]) and 
executed it from within the IDE with the attached input data.



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