Unable to complete task
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)
