[jboss-user] [jBPM] - completing human task - NoSuchFieldError: classLoader

[wishmaster7]

wishmaster7 [https://community.jboss.org/people/wishmaster7] created the discussion

"completing human task - NoSuchFieldError: classLoader"

To view the discussion, visit: https://community.jboss.org/message/802416#802416

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Hi all,

I have found something very strange when I complete a Human Task. Here is what I do:

Map<String, Object> result = new HashMap<String, Object>();
result.put("Result", action);
taskService.completeWithResults(taskId, userId, result);

and I have the following error:

java.lang.NoSuchFieldError: classLoader
    at org.jbpm.task.utils.ContentMarshallerHelper.unmarshall(ContentMarshallerHelper.java:107)
    at org.jbpm.process.workitem.wsht.GenericHTWorkItemHandler$TaskCompletedHandler.handleCompletedTask(GenericHTWorkItemHandler.java:260)
    at org.jbpm.process.workitem.wsht.GenericHTWorkItemHandler$TaskCompletedHandler.execute(GenericHTWorkItemHandler.java:234)
    at org.jbpm.task.service.local.LocalTaskService$SimpleEventTransport.trigger(LocalTaskService.java:329)
    at org.jbpm.task.event.MessagingTaskEventListener.triggerPayload(MessagingTaskEventListener.java:76)
    at org.jbpm.task.event.MessagingTaskEventListener.handleEvent(MessagingTaskEventListener.java:92)
    at org.jbpm.task.event.MessagingTaskEventListener.taskCompleted(MessagingTaskEventListener.java:109)
    at org.jbpm.task.event.TaskEventSupport.fireTaskCompleted(TaskEventSupport.java:49)
    at org.jbpm.task.service.TaskServiceSession.postTaskCompleteOperation(TaskServiceSession.java:569)
    at org.jbpm.task.service.TaskServiceSession.taskOperation(TaskServiceSession.java:495)
    at org.jbpm.task.service.local.LocalTaskService.complete(LocalTaskService.java:83)
    at org.jbpm.task.service.local.LocalTaskService.completeWithResults(LocalTaskService.java:91)


So, I search in the code, and I find :

MarshallerReaderContext context = null;
context.classLoader = ContentMarshallerHelper.class.getClassLoader();

BUT... (something I can't explain), MarshallerReaderContext has no classLoader. This throws the error above.

Someone knows? Any help would be apreciated.
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