Hello,
I have a method to persist process instance as follows
|
| public static synchronized void persistPI(Token token)
| throws Exception
| {
| ProcessInstance pi=token.getProcessInstance();
| JbpmSessionFactory factory = JbpmSessionFactory.getInstance();
| JbpmSession jbpmSession = factory.openJbpmSession();
| jbpmSession.beginTransaction();
| try
| {
| jbpmSession.getGraphSession().saveProcessInstance(pi);
| jbpmSession.commitTransaction();
| }
| catch (Exception e)
| {
| e.printStackTrace();
| jbpmSession.rollbackTransaction();
| throw e;
| }
| finally
| {
| jbpmSession.close();
| }
|
| }
|
I have multiple threads (one per child token) calling this method. I am getting
the following exception
| java.lang.RuntimeException: couldn't save process instance '[EMAIL
PROTECTED]'
| at org.jbpm.db.GraphSession.saveProcessInstance(GraphSession.java:209)
| at jpl.mipl.pgs.jbpm.util.Helper.persistPI(Helper.java:35)
| at jpl.mipl.pgs.jbpm.action.ForkHandler.run(ForkHandler.java:195)
| at jpl.mipl.pgs.jbpm.action.ForkHandler.run(ForkHandler.java:223)
| at java.lang.Thread.run(Thread.java:534)
| Caused by: java.util.ConcurrentModificationException
| at
java.util.AbstractList$Itr.checkForComodification(AbstractList.java:448)
| at java.util.AbstractList$Itr.next(AbstractList.java:419)
| at org.jbpm.db.LoggingSession.saveLogs(LoggingSession.java:86)
| at org.jbpm.db.GraphSession.saveProcessInstance(GraphSession.java:204)
| ... 4 more
|
Any ideas.
Thanks for your help and time
Raj
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