5 Replies Latest reply on Mar 23, 2010 1:19 PM by Martin Pradny

    Unable to complete task

    Tej jbpm Novice

      JBPM 4.2

      I am unable to complete a task. It throws a hiberanate exception. Any pointers??

      I found a JIRA with a similar issue but I am not giving Async as an attribute in the start node but still get the same error
      https://jira.jboss.org/jira/browse/JBPM-2535?page=com.atlassian.jira.plugin.system.issuetabpanels%3Aall-tabpanel



      JPDL

      <?xml version="1.0" encoding="UTF-8"?>
      
      <process key="moves" name="moves" xmlns="http://jbpm.org/4/jpdl">
       <start g="372,12,49,73" name="start1">
       <transition to="Request_New_Move"/>
       </start>
       <task form="request_move.xsl" g="312,72,169,52" name="Request_New_Move">
       <transition g="-43,-5" name="submit" to="Line_Manager_review"/>
       </task>
       <task assignee="${reqLoginName}" form="linemanagerreview" g="312,288,169,52" name="Line_Manager_review">
       <notification>
       <to users="${task.assignee}"/>
       <cc addresses="${lmEmail}"/>
       <subject>${task.name}</subject>
       <text>
       <![CDATA[Hi ${task.assignee},
       Task "${task.name}" has been assigned to you.
       ${task.description}
       Sent by JBoss jBPM
       ]]>
       </text>
       </notification>
       <transition g="-57,-4" name="approve" to="Send_approval_email"/>
       <transition g="18,-5" name="reject" to="Send_rejection_email"/>
       </task>
       <end g="384,480,48,48" name="end1"/>
       <mail g="240,408,133,40" name="Send_approval_email">
       <to addresses="somebody@office.com"/>
       <subject>Your move request is approved!</subject>
       <text>Employee name ${employeeName} and request details ${requestDetails}</text>
       <transition to="end1"/>
       </mail>
       <mail g="432,408,133,37" name="Send_rejection_email">
       <to addresses="somebody@office.com"/>
       <subject>Your move request is rejected!</subject>
       <text>Employee name ${employeeName} and request details ${requestDetails}</text>
       <transition to="end1"/>
       </mail>
      </process>

      Error
      org.hibernate.NonUniqueResultException: query did not return a unique result: 2
       at org.hibernate.impl.AbstractQueryImpl.uniqueElement(AbstractQueryImpl.java:844)
       at org.hibernate.impl.AbstractQueryImpl.uniqueResult(AbstractQueryImpl.java:835)
       at org.jbpm.pvm.internal.hibernate.DbSessionImpl.findTaskByExecution(DbSessionImpl.java:386)
       at org.jbpm.jpdl.internal.activity.MailListener.notify(MailListener.java:50)
       at org.jbpm.pvm.internal.model.op.ExecuteEventListener.perform(ExecuteEventListener.java:81)
       at org.jbpm.pvm.internal.model.ExecutionImpl.performAtomicOperationSync(ExecutionImpl.java:655)
       at org.jbpm.pvm.internal.model.ExecutionImpl.performAtomicOperation(ExecutionImpl.java:615)
       at org.jbpm.pvm.internal.model.ExecutionImpl.signal(ExecutionImpl.java:416)
       at org.jbpm.pvm.internal.model.ExecutionImpl.signal(ExecutionImpl.java:402)
       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
       at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
       at java.lang.reflect.Method.invoke(Method.java:597)
       at org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:197)
       at org.jbpm.pvm.internal.model.ExecutionImpl_$$_javassist_5.signal(ExecutionImpl_$$_javassist_5.java)
       at org.jbpm.pvm.internal.task.TaskImpl.complete(TaskImpl.java:194)
       at org.jbpm.pvm.internal.cmd.CompleteTaskCmd.execute(CompleteTaskCmd.java:60)
       at org.jbpm.pvm.internal.cmd.CompleteTaskCmd.execute(CompleteTaskCmd.java:32)
       at org.jbpm.pvm.internal.cmd.CompositeCmd.execute(CompositeCmd.java:43)
       at org.jbpm.pvm.internal.cmd.CompositeCmd.execute(CompositeCmd.java:35)
       at org.jbpm.pvm.internal.svc.DefaultCommandService.execute(DefaultCommandService.java:42)
       at org.jbpm.pvm.internal.tx.StandardTransactionInterceptor.execute(StandardTransactionInterceptor.java:54)
       at org.jbpm.pvm.internal.svc.EnvironmentInterceptor.executeInNewEnvironment(EnvironmentInterceptor.java:53)
       at org.jbpm.pvm.internal.svc.EnvironmentInterceptor.execute(EnvironmentInterceptor.java:40)
       at org.jbpm.pvm.internal.svc.RetryInterceptor.execute(RetryInterceptor.java:55)
       at org.jbpm.pvm.internal.svc.SkipInterceptor.execute(SkipInterceptor.java:43)
       at org.jbpm.pvm.internal.svc.TaskServiceImpl.completeTask(TaskServiceImpl.java:105)