[prev in list] [next in list] [prev in thread] [next in thread]
List: jboss-user
Subject: [jboss-user] [jBPM] - Unable to complete a task when running the
From: Connie Yang <do-not-reply () jboss ! com>
Date: 2011-06-30 18:26:56
Message-ID: 2-612824-3-85598-1309455164264.jivesbs.jivemailuser () http://community ! jboss ! org
[Download RAW message or body]
[Attachment #2 (multipart/alternative)]
Connie Yang [http://community.jboss.org/people/connie.yang] created the discussion
"Unable to complete a task when running the task in a separate thread"
To view the discussion, visit: http://community.jboss.org/message/612824#612824
--------------------------------------------------------------
Hi,
I have a WorkItemHandler that can run the service task either in the main thread or \
in a separate thread. This is my way of handling for-each parallel (aka fanout). \
When the service task is run in a separate thread, I have been experiencing a \
NullPointerException with the following stack trace upon marking the task completed \
(via NodeInstanceImpl.triggerCompleted). What am I missing?
1. java.lang.NullPointerException
at org.jbpm.process.instance.impl.ProcessInstanceImpl.getProcess(ProcessInstanceImpl.java:67)
at org.jbpm.workflow.instance.impl.WorkflowProcessInstanceImpl.getWorkflowProcess(WorkflowProcessInstanceImpl.java:180)
at org.jbpm.workflow.instance.impl.WorkflowProcessInstanceImpl.getNodeContainer(WorkflowProcessInstanceImpl.java:68)
at org.jbpm.workflow.instance.impl.NodeInstanceImpl.getNode(NodeInstanceImpl.java:100)
at org.jbpm.workflow.instance.node.ActionNodeInstance.getActionNode(ActionNodeInstance.java:35)
at org.jbpm.workflow.instance.node.ActionNodeInstance.internalTrigger(ActionNodeInstance.java:43)
at org.jbpm.workflow.instance.impl.NodeInstanceImpl.trigger(NodeInstanceImpl.java:122)
at org.jbpm.workflow.instance.impl.NodeInstanceImpl.triggerConnection(NodeInstanceImpl.java:185)
at org.jbpm.workflow.instance.impl.NodeInstanceImpl.triggerCompleted(NodeInstanceImpl.java:150)
at org.jbpm.workflow.instance.impl.ExtendedNodeInstanceImpl.triggerCompleted(ExtendedNodeInstanceImpl.java:47)
at org.jbpm.workflow.instance.node.StateBasedNodeInstance.triggerCompleted(StateBasedNodeInstance.java:162)
at org.jbpm.workflow.instance.node.StateBasedNodeInstance.triggerCompleted(StateBasedNodeInstance.java:143)
at org.jbpm.workflow.instance.node.WorkItemNodeInstance.triggerCompleted(WorkItemNodeInstance.java:239)
at org.jbpm.workflow.instance.node.WorkItemNodeInstance.workItemCompleted(WorkItemNodeInstance.java:301)
at org.jbpm.workflow.instance.node.WorkItemNodeInstance.signalEvent(WorkItemNodeInstance.java:277)
at org.jbpm.workflow.instance.impl.WorkflowProcessInstanceImpl.signalEvent(WorkflowProcessInstanceImpl.java:333)
at org.drools.persistence.jpa.processinstance.JPAWorkItemManager.completeWorkItem(JPAWorkItemManager.java:117)
at com.ebay.cloud.orchest.jbpm.LcmPojoWorkItemHandler$1.run(LcmPojoWorkItemHandler.java:95)
at com.ebay.kernel.executor.TaskExecutor$Adapter.call(TaskExecutor.java:587)
Thanks in advance!
Connie
--------------------------------------------------------------
Reply to this message by going to Community
[http://community.jboss.org/message/612824#612824]
Start a new discussion in jBPM at Community
[http://community.jboss.org/choose-container!input.jspa?contentType=1&containerType=14&container=2034]
[Attachment #5 (text/html)]
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<body link="#355491" alink="#4262a1" vlink="#355491" style="background: #e2e2e2; \
margin: 0; padding: 20px;">
<div>
<table cellpadding="0" bgcolor="#FFFFFF" border="0" cellspacing="0" style="border: \
1px solid #dadada; margin-bottom: 30px; width: 100%; -moz-border-radius: 6px; \
-webkit-border-radius: 6px;"> <tbody>
<tr>
<td>
<table border="0" cellpadding="0" cellspacing="0" bgcolor="#FFFFFF" \
style="border: solid 2px #ccc; background: #dadada; width: 100%; -moz-border-radius: \
6px; -webkit-border-radius: 6px;"> <tbody>
<tr>
<td bgcolor="#000000" valign="middle" height="58px" style="border-bottom: 1px \
solid #ccc; padding: 20px; -moz-border-radius-topleft: 3px; \
-moz-border-radius-topright: 3px; -webkit-border-top-right-radius: 5px; \
-webkit-border-top-left-radius: 5px;">
<h1 style="color: #333333; font: bold 22px Arial, Helvetica, sans-serif; \
margin: 0; display: block !important;">
<!-- To have a header image/logo replace the name below with your img tag \
-->
<!-- Email clients will render the images when the message is read so any \
image -->
<!-- must be made available on a public server, so that all recipients can \
load the image. -->
<a href="http://community.jboss.org/index.jspa" style="text-decoration: \
none; color: #E1E1E1">JBoss Community</a></h1> </td>
</tr>
<tr>
<td bgcolor="#FFFFFF" style="font: normal 12px Arial, Helvetica, sans-serif; \
color:#333333; padding: 20px; -moz-border-radius-bottomleft: 4px; \
-moz-border-radius-bottomright: 4px; -webkit-border-bottom-right-radius: 5px; \
-webkit-border-bottom-left-radius: 5px;"><h3 style="margin: 10px 0 5px; font-size: \
17px; font-weight: normal;"> Unable to complete a task when running the task in a \
separate thread </h3>
<span style="margin-bottom: 10px;">
created by <a href="http://community.jboss.org/people/connie.yang">Connie \
Yang</a> in <i>jBPM</i> - <a \
href="http://community.jboss.org/message/612824#612824">View the full discussion</a> \
</span> <hr style="margin: 20px 0; border: none; background-color: #dadada; height: \
1px;">
<div class="jive-rendered-content"><p>Hi,</p><p style="min-height: 8pt; height: 8pt; \
padding: 0px;"> </p><p>I have a WorkItemHandler that can run the service task \
either in the main thread or in a separate thread.  This is my way of handling \
for-each parallel (aka fanout).  When the service task is run in a separate \
thread, I have been experiencing a NullPointerException with the following stack \
trace upon marking the task completed (via NodeInstanceImpl.triggerCompleted).  \
What am I missing?</p><p style="min-height: 8pt; height: 8pt; padding: \
0px;"> </p><ol style="font-size: 12px; list-style-type: lower-alpha; \
list-style-position: initial; list-style-image: initial; padding-left: \
2.25em;"><li><span style="font-size: 10pt; color: navy; text-decoration: underline; \
font-family: 'Courier New';">java.lang.NullPointerException</span></li></ol><p><span \
style="font-size: 10pt; font-family: 'Courier New'; color: \
red;">      at \
org.jbpm.process.instance.impl.ProcessInstanceImpl.getProcess(</span><span \
style="font-size: 10pt; color: navy; text-decoration: underline; font-family: \
'Courier New';">ProcessInstanceImpl.java:67</span><span style="font-size: 10pt; \
font-family: 'Courier New'; color: red;">)</span></p><p><span style="font-size: 10pt; \
font-family: 'Courier New'; color: red;">      at \
org.jbpm.workflow.instance.impl.WorkflowProcessInstanceImpl.getWorkflowProcess(</span><span \
style="font-size: 10pt; color: navy; text-decoration: underline; font-family: \
'Courier New';">WorkflowProcessInstanceImpl.java:180</span><span style="font-size: \
10pt; font-family: 'Courier New'; color: red;">)</span></p><p><span style="font-size: \
10pt; font-family: 'Courier New'; color: red;">      at \
org.jbpm.workflow.instance.impl.WorkflowProcessInstanceImpl.getNodeContainer(</span><span \
style="font-size: 10pt; color: navy; text-decoration: underline; font-family: \
'Courier New';">WorkflowProcessInstanceImpl.java:68</span><span style="font-size: \
10pt; font-family: 'Courier New'; color: red;">)</span></p><p><span style="font-size: \
10pt; font-family: 'Courier New'; color: red;">      at \
org.jbpm.workflow.instance.impl.NodeInstanceImpl.getNode(</span><span \
style="font-size: 10pt; color: navy; text-decoration: underline; font-family: \
'Courier New';">NodeInstanceImpl.java:100</span><span style="font-size: 10pt; \
font-family: 'Courier New'; color: red;">)</span></p><p><span style="font-size: 10pt; \
font-family: 'Courier New'; color: red;">      at \
org.jbpm.workflow.instance.node.ActionNodeInstance.getActionNode(</span><span \
style="font-size: 10pt; color: navy; text-decoration: underline; font-family: \
'Courier New';">ActionNodeInstance.java:35</span><span style="font-size: 10pt; \
font-family: 'Courier New'; color: red;">)</span></p><p><span style="font-size: 10pt; \
font-family: 'Courier New'; color: red;">      at \
org.jbpm.workflow.instance.node.ActionNodeInstance.internalTrigger(</span><span \
style="font-size: 10pt; color: navy; text-decoration: underline; font-family: \
'Courier New';">ActionNodeInstance.java:43</span><span style="font-size: 10pt; \
font-family: 'Courier New'; color: red;">)</span></p><p><span style="font-size: 10pt; \
font-family: 'Courier New'; color: red;">      at \
org.jbpm.workflow.instance.impl.NodeInstanceImpl.trigger(</span><span \
style="font-size: 10pt; color: navy; text-decoration: underline; font-family: \
'Courier New';">NodeInstanceImpl.java:122</span><span style="font-size: 10pt; \
font-family: 'Courier New'; color: red;">)</span></p><p><span style="font-size: 10pt; \
font-family: 'Courier New'; color: red;">      at \
org.jbpm.workflow.instance.impl.NodeInstanceImpl.triggerConnection(</span><span \
style="font-size: 10pt; color: navy; text-decoration: underline; font-family: \
'Courier New';">NodeInstanceImpl.java:185</span><span style="font-size: 10pt; \
font-family: 'Courier New'; color: red;">)</span></p><p><span style="font-size: 10pt; \
font-family: 'Courier New'; color: red;">      at \
org.jbpm.workflow.instance.impl.NodeInstanceImpl.triggerCompleted(</span><span \
style="font-size: 10pt; color: navy; text-decoration: underline; font-family: \
'Courier New';">NodeInstanceImpl.java:150</span><span style="font-size: 10pt; \
font-family: 'Courier New'; color: red;">)</span></p><p><span style="font-size: 10pt; \
font-family: 'Courier New'; color: red;">      at \
org.jbpm.workflow.instance.impl.ExtendedNodeInstanceImpl.triggerCompleted(</span><span \
style="font-size: 10pt; color: navy; text-decoration: underline; font-family: \
'Courier New';">ExtendedNodeInstanceImpl.java:47</span><span style="font-size: 10pt; \
font-family: 'Courier New'; color: red;">)</span></p><p><span style="font-size: 10pt; \
font-family: 'Courier New'; color: red;">      at \
org.jbpm.workflow.instance.node.StateBasedNodeInstance.triggerCompleted(</span><span \
style="font-size: 10pt; color: navy; text-decoration: underline; font-family: \
'Courier New';">StateBasedNodeInstance.java:162</span><span style="font-size: 10pt; \
font-family: 'Courier New'; color: red;">)</span></p><p><span style="font-size: 10pt; \
font-family: 'Courier New'; color: red;">      at \
org.jbpm.workflow.instance.node.StateBasedNodeInstance.triggerCompleted(</span><span \
style="font-size: 10pt; color: navy; text-decoration: underline; font-family: \
'Courier New';">StateBasedNodeInstance.java:143</span><span style="font-size: 10pt; \
font-family: 'Courier New'; color: red;">)</span></p><p><span style="font-size: 10pt; \
font-family: 'Courier New'; color: red;">      at \
org.jbpm.workflow.instance.node.WorkItemNodeInstance.triggerCompleted(</span><span \
style="font-size: 10pt; color: navy; text-decoration: underline; font-family: \
'Courier New';">WorkItemNodeInstance.java:239</span><span style="font-size: 10pt; \
font-family: 'Courier New'; color: red;">)</span></p><p><span style="font-size: 10pt; \
font-family: 'Courier New'; color: red;">      at \
org.jbpm.workflow.instance.node.WorkItemNodeInstance.workItemCompleted(</span><span \
style="font-size: 10pt; color: navy; text-decoration: underline; font-family: \
'Courier New';">WorkItemNodeInstance.java:301</span><span style="font-size: 10pt; \
font-family: 'Courier New'; color: red;">)</span></p><p><span style="font-size: 10pt; \
font-family: 'Courier New'; color: red;">      at \
org.jbpm.workflow.instance.node.WorkItemNodeInstance.signalEvent(</span><span \
style="font-size: 10pt; color: navy; text-decoration: underline; font-family: \
'Courier New';">WorkItemNodeInstance.java:277</span><span style="font-size: 10pt; \
font-family: 'Courier New'; color: red;">)</span></p><p><span style="font-size: 10pt; \
font-family: 'Courier New'; color: red;">      at \
org.jbpm.workflow.instance.impl.WorkflowProcessInstanceImpl.signalEvent(</span><span \
style="font-size: 10pt; color: navy; text-decoration: underline; font-family: \
'Courier New';">WorkflowProcessInstanceImpl.java:333</span><span style="font-size: \
10pt; font-family: 'Courier New'; color: red;">)</span></p><p><span style="font-size: \
10pt; font-family: 'Courier New'; color: red;">      at \
org.drools.persistence.jpa.processinstance.JPAWorkItemManager.completeWorkItem(</span><span \
style="font-size: 10pt; color: navy; text-decoration: underline; font-family: \
'Courier New';">JPAWorkItemManager.java:117</span><span style="font-size: 10pt; \
font-family: 'Courier New'; color: red;">)</span></p><p><span style="font-size: 10pt; \
font-family: 'Courier New'; color: red;">      at \
com.ebay.cloud.orchest.jbpm.LcmPojoWorkItemHandler$1.run(</span><span \
style="font-size: 10pt; color: navy; text-decoration: underline; font-family: \
'Courier New';">LcmPojoWorkItemHandler.java:95</span><span style="font-size: 10pt; \
font-family: 'Courier New'; color: red;">)</span></p><p><span style="font-size: 10pt; \
font-family: 'Courier New'; color: red;">      at \
com.ebay.kernel.executor.TaskExecutor$Adapter.call(</span><span style="font-size: \
10pt; color: navy; text-decoration: underline; font-family: 'Courier \
New';">TaskExecutor.java:587</span><span style="font-size: 10pt; font-family: \
'Courier New'; color: red;">)</span></p><p style="min-height: 8pt; height: 8pt; \
padding: 0px;"> </p><p>Thanks in advance!</p><p>Connie</p></div>
<div style="background-color: #f4f4f4; padding: 10px; margin-top: 20px;">
<p style="margin: 0;">Reply to this message by <a \
href="http://community.jboss.org/message/612824#612824">going to Community</a></p> \
<p style="margin: 0;">Start a new discussion in jBPM at <a \
href="http://community.jboss.org/choose-container!input.jspa?contentType=1&containerType=14&container=2034">Community</a></p>
</div></td>
</tr>
</tbody>
</table>
</td>
</tr>
</tbody>
</table>
</div>
</body>
</html>
_______________________________________________
jboss-user mailing list
jboss-user@lists.jboss.org
https://lists.jboss.org/mailman/listinfo/jboss-user
[prev in list] [next in list] [prev in thread] [next in thread]
Configure |
About |
News |
Add a list |
Sponsored by KoreLogic