Execution Listener works on event=start but crashes when i change it to event=end

[jhahn]

I need to delete certain tasks when this receiveTask ends.

     ….
     <receiveTask id="waitAPI" name="Wait for API response">
        <extensionElements>
          <activiti:executionListener event="end" class="com.____.executionListeners.DeleteTasksOnMessageReceive">
            <activiti:field name="deleteTaskDefinitionKey">
              <activiti:string><![CDATA[test]]></activiti:string>
            </activiti:field>
          </activiti:executionListener>
        </extensionElements>
      </receiveTask>
      ….

If I have it to event="start", it calls the class notify function fine with "test" being assigned to the Private Expression deleteTaskDefinitionKey in the class. But when I switch it to event="end", it throws a class not found exception and fails to call the function.

I spent few hours this morning trying to figure this out and I am pretty much stuck on this issue.

01:52:04,673 [pool-2-thread-1] ERROR org.activiti.engine.impl.cmd.JobRetryCmd  - activitiy or FailedJobRetryTimerCycleValue is null in job 10782290'. only decrementing retries.
01:52:04,677 [pool-2-thread-1] ERROR org.activiti.engine.impl.asyncexecutor.ExecuteAsyncRunnable  - Job 10782290 failed
…
…
Caused by: org.activiti.engine.ActivitiClassLoadingException: Class not found: com.____.executionListeners.DeleteTasksOnMessageReceive
   at org.activiti.engine.impl.util.ReflectUtil.loadClass(ReflectUtil.java:87)
   at org.activiti.engine.impl.util.ReflectUtil.instantiate(ReflectUtil.java:134)
   … 44 more
Caused by: java.lang.ClassNotFoundException: com.____.executionListeners.DeleteTasksOnMessageReceive
   at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1718)
   at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1569)

[jhahn]

Whoops, didn't use code blocks…

<code>
    <receiveTask id="waitAPI" name="Wait for API response">
      <extensionElements>
          <activiti:executionListener event="end" class="com.____.executionListeners.DeleteTasksOnMessageReceive">
            <activiti:field name="deleteTaskDefinitionKey">
              <activiti:string><![CDATA[test]]></activiti:string>
            </activiti:field>
          </activiti:executionListener>
        </extensionElements>
      </receiveTask>
</code>

[martin_grofcik]

Hi,

Caused by: java.lang.ClassNotFoundException: com.____.executionListeners.DeleteTasksOnMessageReceive

Did you add class to the classpath?

Regards
Martin

[jhahn]

I think my comment is waiting approval from mods but going to post an update anyway.

Yes, the class is in the class path, which explains why it works when event="start" but it doens't work on event="end".

Until now, I've been working with the REST API to send a "action": "signal" to an execution. I have my execution listener on event="start". When I do a PUT /executions/{executionId}  with  "action": "signal", it works fine.

But when I use Java processEngine.getRuntimeService().signal(executionId); it throws the same class not found error.
Why would it work with the restAPI but no the java call (with the same executionId)…

This is such a confusing case and I'm wondering if there are inconsistencies between the REST API vs Java. Both are are 5.17.0.

[martin_grofcik]

Hi,

Could you create failing jUnit test please?
http://forums.activiti.org/content/sticky-how-write-unit-test

Regards
Martin