[jboss-user] [JBoss jBPM] - Jbpm - EJB LazyInitialization Exception

Hi, I was trying to learn jbpm and came across this scenario. I was trying to create a Session Facade for my Process related activities (instantiate process instance, list tasks etc). I created a basic CMP EJB and added method to instantiate a ProcessInstance which is already deployed. For testing, I am calling this EJB method from a servlet using the remote interface of the EJB. In my EJB method, I am creating a new instance of my business process which is already deployed. This method returns the newly created ProcessInstance. After that, in my servlet I am calling processInstance.signal()= and getting the below exception. 18:42:12,484 ERROR [LazyInitializationException] failed to lazily initialize a collection of role: org.jbpm.graph.def.Node.leavingTransitions, no session or session was closed org.hibernate.LazyInitializationException : failed to lazily initialize a collection of role: org.jbpm.graph.def.Node.leavingTransitions, no session or session was closed at org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationException( AbstractPersistentCollection.java:358) at org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationExceptionIfNotConnected( AbstractPersistentCollection.java:350) If I do processInstance.signal() from my EJB itself, everything is working fine. I do understand that its a bad design to tightly couple the servlet and the EJB layer and there could be transaction issues, but just wanted to doube confirm it. Thanks in advance View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4155199#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...