1:02 p.m.
Andy McC [https://community.jboss.org/people/andymcc] created the discussion
"Cannot make Evaluation example work consistently in Eclipse"
To view the discussion, visit: https://community.jboss.org/message/805968#805968
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Hi,
Although I'm a newbie, please be assured that I've tried to resolve this one
before posting, but it looks like others have hit similar issues in the past (
https://community.jboss.org/message/750417#750417
https://community.jboss.org/message/750417#75041).
I'm seeing the same issue on two different machines, one running Windows 7 the other
Windows 8, both running Java SE runtime 1.7.0_17-b02.
I'm running the example "straight out of the box" without any modifications.
Here's what I'm seeing:
* I've installed jBPM_5.4.0_final and Eclipse Helios as per the installation
documentation.
* In Eclipse, I run the Evaluation example in Debug with a breakpoint at the
+logger.close()+ instruction, and complete all the krisv, john and mary tasks.
* In Eclipse, I then press the green arrow in the Debug session to complete the
execution.
* All good so far.
* However, if I immediately try to rerun the Evaluation example, there is a pause and I
see the following in the console window (apologies for the formatting!):
| 1 | 02/04 11:23:07,519[main] ERROR
workitem.wsht.GenericHTWorkItemHandler.executeWorkItem - Tue Apr 02 11:23:07 BST 2013:
Error when creating task on task server for work item id 1. Error reported by task server:
Task operation request timed out |
java.lang.RuntimeException: Task operation request timed out
| | at
org.jbpm.task.service.SyncTaskServiceWrapper.addTask(SyncTaskServiceWrapper.java:118) |
| | at
org.jbpm.process.workitem.wsht.GenericHTWorkItemHandler.executeWorkItem(GenericHTWorkItemHandler.java:182)
|
| | at
org.drools.process.instance.impl.DefaultWorkItemManager.internalExecuteWorkItem(DefaultWorkItemManager.java:70)
|
| | at
org.jbpm.workflow.instance.node.WorkItemNodeInstance.internalTrigger(WorkItemNodeInstance.java:107)
|
| | at
org.jbpm.workflow.instance.impl.NodeInstanceImpl.trigger(NodeInstanceImpl.java:126) |
| | at
org.jbpm.workflow.instance.impl.NodeInstanceImpl.triggerNodeInstance(NodeInstanceImpl.java:279)
|
| | at
org.jbpm.workflow.instance.impl.NodeInstanceImpl.triggerCompleted(NodeInstanceImpl.java:238)
|
| | at
org.jbpm.workflow.instance.node.StartNodeInstance.triggerCompleted(StartNodeInstance.java:49)
|
| | at
org.jbpm.workflow.instance.node.StartNodeInstance.internalTrigger(StartNodeInstance.java:41)
|
| | at
org.jbpm.workflow.instance.impl.NodeInstanceImpl.trigger(NodeInstanceImpl.java:126) |
| | at
org.jbpm.ruleflow.instance.RuleFlowProcessInstance.internalStart(RuleFlowProcessInstance.java:35)
|
| | at
org.jbpm.process.instance.impl.ProcessInstanceImpl.start(ProcessInstanceImpl.java:194) |
| | at
org.jbpm.workflow.instance.impl.WorkflowProcessInstanceImpl.start(WorkflowProcessInstanceImpl.java:309)
|
| | at
org.jbpm.process.instance.ProcessRuntimeImpl.startProcessInstance(ProcessRuntimeImpl.java:170)
|
| | at
org.jbpm.process.instance.ProcessRuntimeImpl.startProcess(ProcessRuntimeImpl.java:140) |
| | at
org.drools.common.AbstractWorkingMemory.startProcess(AbstractWorkingMemory.java:1098) |
| | at
org.drools.impl.StatefulKnowledgeSessionImpl.startProcess(StatefulKnowledgeSessionImpl.java:320)
|
| | at com.sample.ProcessTest.main(ProcessTest.java:32) |
|
| Process started ... |
The only way I've found to resolve this is to restart Jboss which I'm sure
isn't the intended way.
Here's what I've tried/noticed
* I've tried inserting a ksession.dispose() after the logger.close() but this does not
appear to clear the issue.
* I've "clean"ed the Eclipse project and restarted the debug session.
* I've noticed that the memory occupancy
* When the ProcessTest has apparently completed, the Eclipse session still appears to have
several threads that keep running (see below)
| com.sample.ProcessTest at localhost:51000 | |
| | Daemon Thread [Old I/O client worker (channelId: 2149714, /127.0.0.1:51002 =>
/127.0.0.1:5153)] (Running) | |
| | Daemon Thread [Thread-0 (HornetQ-client-global-scheduled-threads-22781537)] (Running)
| |
| | Daemon Thread [Thread-1 (HornetQ-client-global-scheduled-threads-22781537)] (Running)
| |
| | Thread [Thread-2] (Running) | |
| | Daemon Thread [Thread-2 (HornetQ-client-global-scheduled-threads-22781537)] (Running)
| |
| | Daemon Thread [Thread-3 (HornetQ-client-global-scheduled-threads-22781537)] (Running)
| |
| | Daemon Thread [Thread-4 (HornetQ-client-global-scheduled-threads-22781537)] (Running)
| |
| | Thread [DestroyJavaVM] (Running) | |
Can anyone shed any light on what might be going wrong here? I'm keen to get moving
with jBPM but I'd really like to be confident that I can get the examples working
realiably before using Eclipse as my test environment.
Many thanks!
Andy McC
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