[jboss-user] [JBoss jBPM] - Expression Language not worked in JBPM-jpdl-3.2.2

I used a back-end bean like this. | public String strUser = "user"; | public String getStrUser() { | return strUser; | } | public void setStrUser(String strUser) { | this.strUser = strUser; | } | I used a Expression Language to this Processdefinition.xml as follows. | <process-definition xmlns="urn:jbpm.org:jpdl-3.2" name="loanProcess"> | <start-state name="start-state1"> | <task name="StartTask"></task> | <transition to="task-node1"></transition> | </start-state> | <event type="task-create"> | <action class="com.sample.action.AssignUsr"></action> | </event> | <task-node name="task-node1"> | <task name="task1"> <assignment expression="user(#{obj[strUser]})"></assignment> | </task> | <transition to="End"></transition> | </task-node> | <end-state name="End"></end-state> | I set the back-end bean object to contextInstance in the following way in the JUnit | processInstance.getContextInstance().setVariable("obj", obj); | Got a stack trace like this | 14:28:27,401 [main] DEBUG ExpressionAssignmentHandler : resolving first term 'user(#{obj[strUser]})' | Exception in thread "main" org.jbpm.graph.def.DelegationException: couldn't resolve assignment expression 'user(#{obj[strUser]})' | at org.jbpm.taskmgmt.exe.TaskMgmtInstance.performAssignment(TaskMgmtInstance.java:216) | at org.jbpm.taskmgmt.exe.TaskInstance.assign(TaskInstance.java:204) | at org.jbpm.taskmgmt.exe.TaskMgmtInstance.createTaskInstance(TaskMgmtInstance.java:154) | at org.jbpm.graph.node.TaskNode.execute(TaskNode.java:168) | at org.jbpm.graph.def.Node.enter(Node.java:319) | at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) | at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) | at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) | at java.lang.reflect.Method.invoke(Unknown Source) | at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke(CGLIBLazyInitializer.java:157) | at org.jbpm.graph.def.Node$$EnhancerByCGLIB$$89d40aac.enter(<generated>) | at org.jbpm.graph.def.Transition.take(Transition.java:151) | at org.jbpm.graph.def.Node.leave(Node.java:394) | at org.jbpm.graph.node.StartState.leave(StartState.java:70) | at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) | at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) | at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) | at java.lang.reflect.Method.invoke(Unknown Source) | at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke(CGLIBLazyInitializer.java:157) | at org.jbpm.graph.def.Node$$EnhancerByCGLIB$$89d40aac.leave(<generated>) | at org.jbpm.graph.exe.Token.signal(Token.java:195) | at org.jbpm.graph.exe.Token.signal(Token.java:140) | at org.jbpm.graph.exe.ProcessInstance.signal(ProcessInstance.java:271) | at com.cts.client.TestClient.main(TestClient.java:30) | Caused by: org.jbpm.identity.assignment.ExpressionAssignmentException: couldn't resolve assignment expression 'user(#{obj[strUser]})' | at org.jbpm.identity.assignment.ExpressionAssignmentHandler.assign(ExpressionAssignmentHandler.java:97) | at org.jbpm.taskmgmt.exe.TaskMgmtInstance.performAssignmentDelegation(TaskMgmtInstance.java:228) | at org.jbpm.taskmgmt.exe.TaskMgmtInstance.performAssignment(TaskMgmtInstance.java:201) | ... 23 more | Caused by: org.jbpm.identity.assignment.ExpressionAssignmentException: user '#{obj[strUser]}' couldn't be fetched from the user db | at org.jbpm.identity.assignment.ExpressionAssignmentHandler.getUserByName(ExpressionAssignmentHandler.java:209) | at org.jbpm.identity.assignment.ExpressionAssignmentHandler.resolveFirstTerm(ExpressionAssignmentHandler.java:147) | at org.jbpm.identity.assignment.ExpressionAssignmentHandler.assign(ExpressionAssignmentHandler.java:75) | ... 25 more | Am i doing something wrong!!!! Is there any way to do the following i.e. to access certain variable from a back-end bean using Expression... NB:- My jpbm is not integrated with Seam and I used to assign the task to that user whichever I wish to set in my back-end bean Thanks Soumya View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4122936#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...