Asad Rauf [http://community.jboss.org/people/imran.h] created the discussion

"Re: Instantiating a process in JBPM5"

To view the discussion, visit: http://community.jboss.org/message/624326#624326

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I am able to run a process end to end. But I need to eventually persist it for 
longer running processes and also for persistent tasks. For that I still need 
to use the "org.jbpm.persistence.jpa" persistence which throws the above 
exception:

 Error in named query: SubTasksAssignedAsPotentialOwner
org.hibernate.hql.ast.QuerySyntaxException: Unable to locate class 
[org.drools.task.query.TaskSummary] [select new 
org.drools.task.query.TaskSummary( t.id, names.text, subjects.text, 
descriptions.text, t.taskData.status, t.priority, t.taskData.skipable, 
t.taskData.actualOwner, t.taskData.createdBy, t.taskData.createdOn, 
t.taskData.activationTime, t.taskData.expirationTime) from org.jbpm.task.Task t 
left join t.taskData.createdBy left join t.taskData.actualOwner, 
org.jbpm.task.I18NText names, org.jbpm.task.I18NText subjects, 
org.jbpm.task.I18NText descriptions, org.jbpm.task.OrganizationalEntity 
potentialOwners where t.taskData.parentId = :parentId and potentialOwners.id = 
:userId and potentialOwners in elements ( t.peopleAssignments.potentialOwners ) 
and names.language = :language and names in elements( t.names) and ( 
subjects.language = :language and subjects in elements( t.subjects) or 
t.subjects.size = 0 ) and ( descriptions.language = :language and descriptions 
in elements( t.descriptions) or t.descriptions.size = 0 ) and t.taskData.status 
in ('Created', 'Ready', 'Reserved', 'InProgress', 'Suspended') and 
t.taskData.expirationTime is null]
        at 
org.hibernate.hql.ast.QuerySyntaxException.convert(QuerySyntaxException.java:31)
        at 
org.hibernate.hql.ast.QuerySyntaxException.convert(QuerySyntaxException.java:24)
        at 
org.hibernate.hql.ast.ErrorCounter.throwQueryException(ErrorCounter.java:59)


This is talking about the drools TaskSummary class 
(org.drools.task.query.TaskSummary) and not the jbpm taskSummary class which, 
as you pointed out is in jbpm-human-task.jar
Please let me know if you need further info. Thanks.
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