7:05 a.m.
Miloud Haimoune [https://community.jboss.org/people/milhaim] created the discussion
"Human tasks : LocalTaskService JTA issue"
To view the discussion, visit: https://community.jboss.org/message/743349#743349
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Hi all,
I'm Using JBPM5.2.final in a seam 2 application all running under jboss 5.1 SA.
When a use LocalTaskService as following :
to connect the service :
public void connect() {
if (service == null) {
org.jbpm.task.service.TaskService taskService =
HumanTaskService.getService();
service = new LocalTaskService(taskService.createSession());
}
....
and I register the human task :
TaskService taskService = HumanTaskService.getService();
SyncWSHumanTaskHandler handler = new SyncWSHumanTaskHandler(new
LocalTaskService(taskService.createSession()), ksession);
ksession.getWorkItemManager().registerWorkItemHandler("Human Task",
handler);
But when a start my process instance and create a human task I get then the following
exception (*A JTA EntityManager cannot use getTransaction()*) :
I'm using jboss transaction manager
12:33:59,014 ERROR [STDERR] Caused by: java.lang.IllegalStateException: A JTA
EntityManager cannot use getTransaction()
12:33:59,014 ERROR [STDERR] at
org.hibernate.ejb.AbstractEntityManagerImpl.getTransaction(AbstractEntityManagerImpl.java:324)
12:33:59,014 ERROR [STDERR] at
org.jbpm.task.service.TaskServiceSession.taskOperation(TaskServiceSession.java:442)
12:33:59,014 ERROR [STDERR] at
org.jbpm.task.service.local.LocalTaskService.start(LocalTaskService.java:224)
12:33:59,014 ERROR [STDERR] at
com.atriumnetwork.jbpm.LocalTaskManager.completeTask(LocalTaskManager.java:96)
I checked in the sources ther were tow options for TransactionType: default and local-JTA
So I tried to set the transaction type to local-JTA :
taskSession.setTransactionType("local-JTA");
This is working when I start my process but when execution other human tasks I get :
*No active JTA transaction on joinTransaction call exception*
*
*
Caused by: java.lang.RuntimeException: javax.persistence.TransactionRequiredException: No
active JTA transaction on joinTransaction call
at
org.jbpm.task.service.TaskServiceSession.doOperationInTransaction(TaskServiceSession.java:990)
at
org.jbpm.task.service.TaskServiceSession.taskOperation(TaskServiceSession.java:433)
at org.jbpm.task.service.local.LocalTaskService.skip(LocalTaskService.java:220)
at
org.jbpm.process.workitem.wsht.SyncWSHumanTaskHandler.abortWorkItem(SyncWSHumanTaskHandler.java:256)
at
org.drools.persistence.jpa.processinstance.JPAWorkItemManager.internalAbortWorkItem(JPAWorkItemManager.java:76)
at
org.jbpm.workflow.instance.node.WorkItemNodeInstance.cancel(WorkItemNodeInstance.java:249)
at
org.jbpm.workflow.instance.impl.WorkflowProcessInstanceImpl.setState(WorkflowProcessInstanceImpl.java:257)
at
org.jbpm.workflow.instance.node.EndNodeInstance.internalTrigger(EndNodeInstance.java:57)
at
org.jbpm.workflow.instance.impl.NodeInstanceImpl.trigger(NodeInstanceImpl.java:122)
is there another option for the transaction type ??
any help will be very appreciated
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11:01 a.m.
New subject: [jBPM] - Re: Human tasks : LocalTaskService JTA issue
Maciej Swiderski [https://community.jboss.org/people/swiderski.maciej] created the
discussion
"Re: Human tasks : LocalTaskService JTA issue"
To view the discussion, visit: https://community.jboss.org/message/743731#743731
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could you try setting local to true on handler (SyncWSHumanTaskHandler)?
That way task execution will be executed within the same transaction as process instance.
HTH
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11:47 a.m.
New subject: [jBPM] - Re: Human tasks : LocalTaskService JTA issue
Miloud Haimoune [https://community.jboss.org/people/milhaim] created the discussion
"Re: Human tasks : LocalTaskService JTA issue"
To view the discussion, visit: https://community.jboss.org/message/743744#743744
--------------------------------------------------------------
setting local to true on the handler solved my issue.
thank you very much.
miloud
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10:18 a.m.
New subject: [jBPM] - Re: Human tasks : LocalTaskService JTA issue
Miloud Haimoune [https://community.jboss.org/people/milhaim] created the discussion
"Re: Human tasks : LocalTaskService JTA issue"
To view the discussion, visit: https://community.jboss.org/message/744308#744308
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Hi Maciej,
I'm getting the same issue "No active JTA transaction on joinTransaction
call", in another case:
if I create a process instance and restart my application or the jboss server, and try to
close the porcessInstance (and close complite the current human task),
it works fine for the processinstances newly created (after restarting the app).
do you know if I need to set the *local* to *true* (SyncWSHumanTaskHandler) somewhere
else.
For the moment I set this variable after loading or creating the
*StatefulKnowledgeSession.*
Thanks for your help.*
*
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9:34 a.m.
New subject: [jBPM] - Re: Human tasks : LocalTaskService JTA issue
Miloud Haimoune [https://community.jboss.org/people/milhaim] created the discussion
"Re: Human tasks : LocalTaskService JTA issue"
To view the discussion, visit: https://community.jboss.org/message/744557#744557
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After some debugging I found that this exception happened in this conditions:
when closing the process instance (reaching the End transition), the TaskServiceSession is
called to skip the active human task
there is one human task but claimed by a user and the following exception happens.
org.jbpm.task.service.PermissionDeniedException: User
'[User:'Administrator']' was unable to execution operation 'Skip'
on task id 21 due to a no 'current status' match
the transaction is marked to rollback, status STATUS_MARKED_ROLLBACK because I'm
using Jboss 5 transaction manager
this method is called after
| | private void doOperationInTransaction(final TransactedOperation operation) { |
....
| | if (ut.getStatus() == javax.transaction.Status.STATUS_NO_TRANSACTION) { |
.....
} else {
em.joinTransaction();
trying to join a transaction in status MARKED_ROLLBACK which explains the exception
"No active JTA transaction on joinTransaction call"
after that I added the code to complete the task successfully. but the TaskServiceSession
still excute the skip task, *where there is no human tasks.*
I dont have this probelm if I don't restart the ksession.
Thanks.
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7:57 a.m.
New subject: [jBPM] - Re: Human tasks : LocalTaskService JTA issue
Maciej Swiderski [https://community.jboss.org/people/swiderski.maciej] created the
discussion
"Re: Human tasks : LocalTaskService JTA issue"
To view the discussion, visit: https://community.jboss.org/message/744764#744764
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Is it possible to reproduce on a junit test? Like with disposing and restoring session?
Could you provide you process definition as I am trying to understand why the skip
operation is executed.
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9:51 a.m.
New subject: [jBPM] - Re: Human tasks : LocalTaskService JTA issue
Miloud Haimoune [https://community.jboss.org/people/milhaim] created the discussion
"Re: Human tasks : LocalTaskService JTA issue"
To view the discussion, visit: https://community.jboss.org/message/744810#744810
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Hi Maciej,
Thanks for your help,
I tried to debug to understand where does it come form, when skipping this task the status
was "Completed" so there was no match with the list of command
'Created', 'Ready', 'InProgress' ...
But this does not explain why the task is being skipped in the first place (maybe a cache
issue).
I'm trying to move jbpm on mysql db (my application will remain on a postgres db), to
check if this have any relation.
I will work on the junit test once I finish setting the mysql db (heopfuly by the and of
the day),
here the process definition file.
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Maciej Swiderski -
Miloud Haimoune