# Seeing Activity Task Started After WorkflowExecutionCompleted?

**URL:** <https://community.temporal.io/t/seeing-activity-task-started-after-workflowexecutioncompleted/2614>\
**Category:** Community Support\
**Tags:** java-sdk\
**Created:** [July 24, 2021, 7:57am UTC](https://community.temporal.io/t/seeing-activity-task-started-after-workflowexecutioncompleted/2614 "2021-07-24T07:57:58Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![darewreck](https://avatars.discourse-cdn.com/v4/letter/d/c37758/32.png) [@darewreck](https://community.temporal.io/u/darewreck)\
**Post date:** [July 24, 2021, 6:29pm UTC](https://community.temporal.io/t/seeing-activity-task-started-after-workflowexecutioncompleted/2614/3 "2021-07-24T18:29:15Z")

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@Ruslan On the same note I do see the following in my logs. I’m trying to figure out where this exception gets thrown. Is it some background process in the SDK that is still trying to start the Activity?

```auto
"io.grpc.StatusRuntimeException: NOT_FOUND: workflow execution already completed
	at io.grpc.stub.ClientCalls.toStatusRuntimeException(ClientCalls.java:262)
	at io.grpc.stub.ClientCalls.getUnchecked(ClientCalls.java:243)
	at io.grpc.stub.ClientCalls.blockingUnaryCall(ClientCalls.java:156)
	at io.temporal.api.workflowservice.v1.WorkflowServiceGrpc$WorkflowServiceBlockingStub.respondActivityTaskFailed(WorkflowServiceGrpc.java:2757)
	at io.temporal.internal.worker.ActivityWorker$TaskHandlerImpl.lambda$sendReply$1(ActivityWorker.java:305)
	at io.temporal.internal.common.GrpcRetryer.lambda$retry$0(GrpcRetryer.java:79)
	at io.temporal.internal.common.GrpcRetryer.retryWithResult(GrpcRetryer.java:97)
	at io.temporal.internal.common.GrpcRetryer.retry(GrpcRetryer.java:76)
	at io.temporal.internal.worker.ActivityWorker$TaskHandlerImpl.sendReply(ActivityWorker.java:299)
	at io.temporal.internal.worker.ActivityWorker$TaskHandlerImpl.handle(ActivityWorker.java:196)
	at io.temporal.internal.worker.ActivityWorker$TaskHandlerImpl.handle(ActivityWorker.java:154)
	at io.temporal.internal.worker.PollTaskExecutor.lambda$process$0(PollTaskExecutor.java:73)
	... 3 common frames omitted
Wrapped by: java.lang.RuntimeException: Failure processing activity response. WorkflowId=6887dc26-f4d2-442f-aad3-628b2fbb30b4, RunId=2958f530-25f6-4162-bb5c-cbeb0576fafe, ActivityType=ReleaserActivityStart, ActivityId=8a9528ac-ccc1-309e-8cd1-19a6e0a30a1c
	at io.temporal.internal.worker.ActivityWorker$TaskHandlerImpl.wrapFailure(ActivityWorker.java:259)
	at io.temporal.internal.worker.ActivityWorker$TaskHandlerImpl.wrapFailure(ActivityWorker.java:154)
	at io.temporal.internal.worker.PollTaskExecutor.lambda$process$0(PollTaskExecutor.java:79)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
"

```

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