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failed to lazily initialize a collection of role

 
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Hi,





I am trying to deploy on jboss , workflow gets deployed but when i try to create a process instance on first call it gives error

failed to lazily initialize a collection of role: org.jbpm.graph.def.Node.leavingTransitions, no session or session was closed


on successive calls is gives error

failed to lazily initialize a collection of role: org.jbpm.graph.exe.ProcessInstance.instances, no session or session was closed


what is the reason for this , would be thankful if any one can tell , how to fix this .


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