# Exception on some workflow executions

**URL:** <https://community.temporal.io/t/exception-on-some-workflow-executions/3144>\
**Category:** Community Support\
**Tags:** java-sdk, workflow-options\
**Created:** [October 13, 2021, 4:50am UTC](https://community.temporal.io/t/exception-on-some-workflow-executions/3144 "2021-10-13T04:50:31Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![nkatre](https://avatars.discourse-cdn.com/v4/letter/n/d6d6ee/32.png) [@nkatre](https://community.temporal.io/u/nkatre)\
**Post date:** [October 13, 2021, 4:50am UTC](https://community.temporal.io/t/exception-on-some-workflow-executions/3144/1 "2021-10-13T04:50:31Z")

</div>

@maxim Some of the workflow executions are throwing below exception.

```auto
java.lang.IllegalStateException:
No command scheduled that corresponds to event_id: 12
event_time {
  seconds: 1634056687
  nanos: 384584718
}
event_type: EVENT_TYPE_ACTIVITY_TASK_SCHEDULED
task_id: 1490026512
activity_task_scheduled_event_attributes {
  activity_id: "a3395dd2-0918-3892-a45a-b802027866d8"
  activity_type {
    name: "InsertTradeReconRecord"
  }
  task_queue {
    name: "INVEST_CRYPTO_RECON_WORKFLOW_TASK_QUEUE"
    kind: TASK_QUEUE_KIND_NORMAL
  }
  header {
  }
  input {
    payloads {
      metadata {
        key: "encoding"
        value: "json/plain"
      }
      data: "\"3b60eccf-8959-4d9f-bcc0-b4cb918514cd\""
    }
    payloads {
      metadata {
        key: "encoding"
        value: "json/plain"
      }
      data: "\"Crypto_Trade_Recon_Order-12602202\""
    }
    payloads {
      metadata {
        key: "encoding"
        value: "json/plain"
      }
      data: "\"IN_PROGRESS\""
    }
    payloads {
      metadata {
        key: "encoding"
        value: "json/plain"
      }
      data: "12602202"
    }
  }
  schedule_to_close_timeout {
  }
  schedule_to_start_timeout {
  }
  start_to_close_timeout {
    seconds: 300
  }
  heartbeat_timeout {
  }
  workflow_task_completed_event_id: 4
  retry_policy {
    initial_interval {
      seconds: 60
    }
    backoff_coefficient: 1.0
    maximum_interval {
      seconds: 60
    }
    maximum_attempts: 10
  }
}
(Most recent call first)
at io.temporal.internal.statemachines.WorkflowStateMachines.handleCommandEvent (WorkflowStateMachines.java:244)
at io.temporal.internal.statemachines.WorkflowStateMachines.handleEventImpl (WorkflowStateMachines.java:199)
at io.temporal.internal.statemachines.WorkflowStateMachines.handleEvent (WorkflowStateMachines.java:178)
at io.temporal.internal.replay.ReplayWorkflowRunTaskHandler.handleEvent (ReplayWorkflowRunTaskHandler.java:140)
at io.temporal.internal.replay.ReplayWorkflowRunTaskHandler.handleWorkflowTaskImpl (ReplayWorkflowRunTaskHandler.java:180)
at io.temporal.internal.replay.ReplayWorkflowRunTaskHandler.handleWorkflowTask (ReplayWorkflowRunTaskHandler.java:150)
at io.temporal.internal.replay.ReplayWorkflowTaskHandler.handleWorkflowTaskWithEmbeddedQuery (ReplayWorkflowTaskHandler.java:201)
at io.temporal.internal.replay.ReplayWorkflowTaskHandler.handleWorkflowTask (ReplayWorkflowTaskHandler.java:114)
at io.temporal.internal.worker.WorkflowWorker$TaskHandlerImpl.handle (WorkflowWorker.java:319)
at io.temporal.internal.worker.WorkflowWorker$TaskHandlerImpl.handle (WorkflowWorker.java:279)
at io.temporal.internal.worker.PollTaskExecutor.lambda$process$0 (PollTaskExecutor.java:73)
at datadog.trace.bootstrap.instrumentation.java.concurrent.Wrapper.run (Wrapper.java:25)
at java.util.concurrent.ThreadPoolExecutor.runWorker (ThreadPoolExecutor.java:1128)
at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:628)
at java.lang.Thread.run (Thread.java:829)

```

Looks like an activity configured to publish datadog metrics is the cause of the failure but I am not sure whats missing in this activity. Also this is a new activity which is added to an existing workflow.

```auto
metricsActivity = Workflow.newLocalActivityStub(MetricsActivity.class, LocalActivityOptions.newBuilder()
                                                                                                       .setScheduleToCloseTimeout(Duration.ofSeconds(5))
                                                                                                       .build());

```

---

<div class="post-metadata">

**Author:** ![tihomir](https://sea2.discourse-cdn.com/flex016/user_avatar/community.temporal.io/tihomir/32/6580_2.png) [@tihomir](https://community.temporal.io/u/tihomir)\
**Post date:** [October 14, 2021, 2:49pm UTC](https://community.temporal.io/t/exception-on-some-workflow-executions/3144/2 "2021-10-14T14:49:57Z")

</div>

Looks as by adding the new activity to existing workflow it broke determinism (on replay) of already active executions of that workflow (which have execution histories that do not include the added change, local activity marker).  
When adding new activities, and making changes to existing workflows you should use versioning. See docs and video here: [Versioning | Temporal documentation](https://docs.temporal.io/docs/java/versioning/)