Hi,

     While trying for async nodes, actions are passed to MessageService but 
they are not getting executed by Command Executor.


Process definition


  | <?xml version="1.0" encoding="UTF-8"?>
  | 
  | <process-definition name="forktest2">
  | 
  |   <!-- SWIMLANES (= process roles) -->
  |   <swimlane name="user1">
  |     <assignment expression="user(ernie)" />
  |   </swimlane>
  |   
  |   <swimlane name="user2">
  |     <assignment expression="user(bert)" />
  |   </swimlane>
  | 
  |   <swimlane name="user3">
  |     <assignment expression="user(grover)" />
  |   </swimlane>
  | 
  |   <swimlane name="user4">
  |     <assignment expression="user(cookie monster)" />
  |   </swimlane>
  | 
  |   <!-- NODES -->
  | 
  |   <start-state name="state-1">
  |     <task>
  |       <controller>
  |         <variable name="initiatorname" />
  |         <variable name="fileName" />
  |         <variable name="pathName" />
  |       </controller>
  |     </task>
  |     <transition to="fork1" />
  |   </start-state>
  |   
  |   <fork name="fork1">
  |     <transition name="to state-2" to="state-2" />
  |     <transition name="to state-4" to="state-4" />
  |   </fork>
  | 
  |   <task-node name="state-2">
  |     <task swimlane="user1">
  |       <controller>
  |         <variable name="initiatorname" access="read"/>
  |         <variable name="state-2-yourname"/>
  |       </controller>
  |     </task>
  |     <transition to="state-3" />
  |   </task-node>
  | 
  |   <node name="state-3" async='true'>
  |     <action class='org.jbpm.tutorial.action.MyActionHandler' />
  |     <transition name="to join1" to="join1" />
  |   </node>
  | 
  |   <task-node name="state-4">
  |     <task swimlane="user2" >
  |       <controller>
  |         <variable name="initiatorname" access="read"/>
  |         <variable name="state-4-yourname"/>
  |       </controller>
  |     </task>
  |     <transition to="state-5" />
  |   </task-node>
  | 
  |   <node name="state-5" async='true'>
  |     <action class='org.jbpm.tutorial.action.MyActionHandler2' />
  |     <transition name="to join1" to="join1" />
  |   </node>
  | 
  |   <join name="join1">
  |     <transition name="to state-6" to="state-6" />
  |   </join>
  | 
  |   <task-node name="state-6">
  |     <task swimlane="user3">
  |       <controller>
  |         <variable name="initiatorname" access="read"/>
  |         <variable name="state-2-yourname" access="read"/>
  |         <variable name="state-4-yourname" access="read"/>
  |         <variable name="state-5-yourname"/>
  |       </controller>
  |     </task>
  |     <transition to="end" />
  |   </task-node>
  | 
  |   <end-state name="end" />
  | 
  | </process-definition>
  | 
-----

Action Handlers


  | package org.jbpm.tutorial.action;
  | 
  | import org.jbpm.graph.def.*;
  | import org.jbpm.graph.exe.*;
  | 
  | // MyActionHandler represents a class that could execute 
  | // some user code during the execution of a jBPM process.
  | public class MyActionHandler implements ActionHandler {
  | 
  |   private static final long serialVersionUID = 1L;
  | 
  |   public void execute(ExecutionContext executionContext) {
  |      System.out.println("**action1 started**");
  |      for(int i=1; i<500; i++){
  |              System.out.println("[action 1] i = " + i);
  |      }
  |      System.out.println("**action1 ended**");
  |      executionContext.leaveNode();
  |   }
  | }
  | 


  | package org.jbpm.tutorial.action;
  | 
  | import org.jbpm.graph.def.*;
  | import org.jbpm.graph.exe.*;
  | 
  | // MyActionHandler represents a class that could execute 
  | // some user code during the execution of a jBPM process.
  | public class MyActionHandler2 implements ActionHandler {
  | 
  |   private static final long serialVersionUID = 1L;
  | 
  |   public void execute(ExecutionContext executionContext) {
  |      System.out.println("**action2 started**");
  |      for(int i=1; i<500; i++){
  |              System.out.println("[action 2] i = " + i);
  |      }
  |      System.out.println("**action2 ended**");
  |      executionContext.leaveNode();
  |   }
  | }
  | 

Process definition gets loaded nicely


  | 14:36:44,527 DEBUG [HibernateSessionFactoryInterceptor] fetching hibernate 
SessionFactory from JNDI 'java:/jbpm/SessionFactory'
  | 14:36:44,621 DEBUG [SchemaValidationHelper] activating schema validation...
  | 14:36:48,505 DEBUG [HibernateSessionFactoryInterceptor] placed hibernate 
session factory in context key 'org.hibernate.SessionFactory'
  | 14:36:48,505 DEBUG [HibernateSessionInterceptor] opening a hibernate session
  | 14:36:48,505 DEBUG [HibernateSessionInterceptor] storing hibernate session 
in context key 'org.hibernate.Session'
  | 14:36:48,521 DEBUG [HibernateSessionInterceptor] storing the jdbc 
connection created by hiberante in context key 'java.sql.Connection'
  | 14:36:48,521 DEBUG [JbpmSessionInterceptor] storing jbpm sessions in the 
context
  | 14:36:48,521 DEBUG [HibernateTransactionInterceptor] beginning hibernate 
transaction
  | 14:36:48,521 DEBUG [SchedulerThread] checking for timers
  | 14:36:48,521 DEBUG [HibernateTransactionInterceptor] committing hibernate 
transaction
  | 14:36:48,521 DEBUG [JbpmSessionInterceptor] removing jbpm sessions from the 
context
  | 14:36:48,521 DEBUG [HibernateSessionInterceptor] removing hibernate session 
from the context
  | 14:36:48,521 DEBUG [HibernateSessionInterceptor] removing connection from 
the context
  | 14:36:48,521 DEBUG [HibernateSessionInterceptor] closing hibernate session
  | 14:36:48,521 DEBUG [HibernateSessionFactoryInterceptor] removing hibernate 
session factory from context
  | 14:36:48,583 WARN  [JpdlXmlReader] process xml warning: warning: no 
swimlane or assignment specified for task '
  | 
  |   |       <controller>
  |   |         <variable name="initiatorname"/>
  |   |         <variable name="fileName"/>
  |   |         <variable name="pathName"/>
  |   |       </controller>
  |   |     </task>'
  |   | 
  | 14:36:48,599 DEBUG [FileDefinition] preparing file 
'classes/org/jbpm/tutorial/action/MyActionHandler.class' for storage in the 
database
  | 14:36:48,599 DEBUG [FileDefinition] preparing file 
'classes/org/jbpm/tutorial/action/MyActionHandler2.class' for storage in the 
database
  | 14:36:48,599 DEBUG [FileDefinition] preparing file 'processimage.jpg' for 
storage in the database
  | 14:36:48,599 DEBUG [FileDefinition] preparing file 
'classes/org/jbpm/tutorial/action/ActionTest.class' for storage in the database
  | 14:36:48,599 DEBUG [FileDefinition] preparing file 'gpd.xml' for storage in 
the database
  | 14:36:48,708 DEBUG [PersistenceContext] committing transaction
  | 
  | 
  | when state-2 is signalled it goes to asnc node, state-3 but not executing 
actionhandler
  |    After this, there is no polling done for fetching new commands
  | 
  | 
  | 
  |   | 14:38:51,936 DEBUG [LogFilter] request 
http://localhost:8080/jbpm/faces/task.jsp
  |   | 14:38:51,936 DEBUG [LogFilter] request parameter 
[taskform:_link_hidden_]=
  |   | 14:38:51,936 DEBUG [LogFilter] request parameter 
[taskform:taskInstanceId]=40
  |   | 14:38:51,936 DEBUG [LogFilter] request parameter [taskform_SUBMIT]=1
  |   | 14:38:51,936 DEBUG [LogFilter] request parameter 
[taskform:transitionButton]=Save and Close Task
  |   | 14:38:51,936 DEBUG [LogFilter] request parameter 
[taskform:_id2_1:_id8]=iamernie
  |   | 14:38:51,936 DEBUG [LogFilter] request parameter 
[taskform:_id2_0:_id8]=iamcm
  |   | 14:38:51,936 DEBUG [LogFilter] session parameter 
[taskFormParameters]=[(initiatorname,iamcm), (state-2-yourname,null)]
  |   | 14:38:51,936 DEBUG [LogFilter] session parameter 
[org.apache.myfaces.application.jsp.JspStateManagerImpl.SERIALIZED_VIEW-/task.jsp]=[Ljava.lang.Object;@8f7e20
  |   | 14:38:51,936 DEBUG [LogFilter] session parameter [EMAIL PROTECTED]
  |   | 14:38:51,936 DEBUG [LogFilter] session parameter 
[javax.faces.request.charset]=ISO-8859-1
  |   | 14:38:51,936 DEBUG [PersistenceContext] beginning transaction
  |   | 14:38:51,952 DEBUG [TaskBean] saving the task parameters 
[(initiatorname,iamcm), (state-2-yourname,iamernie)]
  |   | 14:38:51,952 DEBUG [TaskBean] ignoring unwritable [initiatorname]
  |   | 14:38:51,952 DEBUG [TaskBean] submitting [state-2-yourname]=iamernie
  |   | 14:38:51,952 DEBUG [JbpmSessionInterceptor] storing jbpm sessions in 
the context
  |   | 14:38:51,967 DEBUG [JbpmSessionInterceptor] removing jbpm sessions from 
the context
  |   | 14:38:51,967 DEBUG [TaskBean] Submitted button:Save and Close Task
  |   | 14:38:51,967 WARN  [StatefulPersistenceContext] Narrowing proxy to 
class org.jbpm.graph.node.TaskNode - this operation breaks ==
  |   | 14:38:51,967 DEBUG [GraphElement] event 'task-end' on 'Task(state-2)' 
for 'Token(/to state-2)'
  |   | 14:38:51,983 DEBUG [TaskInstance] completion of task 'state-2' results 
in taking the default transition
  |   | 14:38:51,983 DEBUG [GraphElement] event 'before-signal' on 
'TaskNode(state-2)' for 'Token(/to state-2)'
  |   | 14:38:51,983 DEBUG [GraphElement] event 'node-leave' on 
'TaskNode(state-2)' for 'Token(/to state-2)'
  |   | 14:38:51,983 DEBUG [GraphElement] event 'transition' on 
'Transition(19432e0)' for 'Token(/to state-2)'
  |   | 14:38:51,998 DEBUG [GraphElement] event 'node-enter' on 'Node(state-3)' 
for 'Token(/to state-2)'
  |   | 14:38:51,998 DEBUG [GraphElement] event 'after-signal' on 
'TaskNode(state-2)' for 'Token(/to state-2)'
  |   | 14:38:51,998 DEBUG [TaskBean] assignmentlogs: []
  |   | 14:38:51,998 DEBUG [JbpmSessionInterceptor] storing jbpm sessions in 
the context
  |   | 14:38:51,998 DEBUG [DbMessageServiceImpl] sending msg '[EMAIL 
PROTECTED]' to destination 'EXECUTE'
  |   | 14:38:51,998 DEBUG [StaticNotifier] notifying one thread (EXECUTE, 
[EMAIL PROTECTED])
  |   | 14:38:51,998 DEBUG [JbpmSessionInterceptor] removing jbpm sessions from 
the context
  |   | 14:38:52,014 INFO  [[/jbpm]] WARNING: Component _id13 just got an 
automatic id, because there was no id assigned yet. If this component was 
created dynamically (i.e. not by a JSP tag) you should assign it an explicit 
static id or assign it the id you get from the createUniqueId from the current 
UIViewRoot component right after creation!
  |   | 14:38:52,061 DEBUG [PersistenceContext] committing transaction
  |   | 14:38:52,108 DEBUG [LogFilter] request 
http://localhost:8080/jbpm/faces/css/jbpm.css
  |   | 14:38:52,108 DEBUG [LogFilter] session parameter 
[org.apache.myfaces.application.jsp.JspStateManagerImpl.SERIALIZED_VIEW-/home.jsp]=[Ljava.lang.Object;@17127f4
  |   | 14:38:52,108 DEBUG [LogFilter] session parameter [EMAIL PROTECTED]
  |   | 14:38:52,108 DEBUG [LogFilter] session parameter 
[javax.faces.request.charset]=ISO-8859-1
  |   | 14:38:52,108 DEBUG [PersistenceContext] beginning transaction
  |   | 14:38:52,108 DEBUG [PersistenceContext] committing transaction
  |   | 14:38:52,123 DEBUG [LogFilter] request 
http://localhost:8080/jbpm/faces/images/logo_green.gif
  |   | 14:38:52,123 DEBUG [LogFilter] session parameter 
[org.apache.myfaces.application.jsp.JspStateManagerImpl.SERIALIZED_VIEW-/home.jsp]=[Ljava.lang.Object;@17127f4
  |   | 14:38:52,123 DEBUG [LogFilter] session parameter [EMAIL PROTECTED]
  |   | 14:38:52,123 DEBUG [LogFilter] session parameter 
[javax.faces.request.charset]=ISO-8859-1
  |   | 
  | 
  | when state-4 is signalled it goes to asnc node, state-5 but not executing 
actionhandler.
  | 
  | 
  |   | 14:45:44,405 DEBUG [TaskBean] Submitted button:Save and Close Task
  |   | 14:45:44,405 WARN  [StatefulPersistenceContext] Narrowing proxy to 
class org.jbpm.graph.node.TaskNode - this operation breaks ==
  |   | 14:45:44,405 DEBUG [GraphElement] event 'task-end' on 'Task(state-4)' 
for 'Token(/to state-4)'
  |   | 14:45:44,436 DEBUG [TaskInstance] completion of task 'state-4' results 
in taking the default transition
  |   | 14:45:44,436 DEBUG [GraphElement] event 'before-signal' on 
'TaskNode(state-4)' for 'Token(/to state-4)'
  |   | 14:45:44,436 DEBUG [GraphElement] event 'node-leave' on 
'TaskNode(state-4)' for 'Token(/to state-4)'
  |   | 14:45:44,451 DEBUG [GraphElement] event 'transition' on 
'Transition(ced1ac)' for 'Token(/to state-4)'
  |   | 14:45:44,451 DEBUG [GraphElement] event 'node-enter' on 'Node(state-5)' 
for 'Token(/to state-4)'
  |   | 14:45:44,451 DEBUG [GraphElement] event 'after-signal' on 
'TaskNode(state-4)' for 'Token(/to state-4)'
  |   | 14:45:44,451 DEBUG [TaskBean] assignmentlogs: []
  |   | 14:45:44,451 DEBUG [JbpmSessionInterceptor] storing jbpm sessions in 
the context
  |   | 14:45:44,451 DEBUG [DbMessageServiceImpl] sending msg '[EMAIL 
PROTECTED]' to destination 'EXECUTE'
  |   | 14:45:44,451 DEBUG [StaticNotifier] notifying one thread (EXECUTE, 
[EMAIL PROTECTED])
  |   | 
  | 
  | 
  | When I restarted the jboss server, strangely  I got the below error from 
command executor
  | 
  | 
  |   | 14:47:41,895 INFO  [TomcatDeployer] deploy, ctxPath=/jmx-console, 
warUrl=.../deploy/jmx-console.war/
  |   | 14:47:41,895 DEBUG [SchedulerThread] checking for timers
  |   | 14:47:42,161 DEBUG [HibernateTransactionInterceptor] committing 
hibernate transaction
  |   | 14:47:42,161 DEBUG [JbpmSessionInterceptor] removing jbpm sessions from 
the context
  |   | 14:47:42,161 DEBUG [HibernateSessionInterceptor] removing hibernate 
session from the context
  |   | 14:47:42,161 DEBUG [HibernateSessionInterceptor] removing connection 
from the context
  |   | 14:47:42,161 DEBUG [HibernateSessionInterceptor] closing hibernate 
session
  |   | 14:47:42,161 DEBUG [HibernateSessionFactoryInterceptor] removing 
hibernate session factory from context
  |   | 14:47:42,317 DEBUG [DbMessageServiceImpl] received msg '[EMAIL 
PROTECTED]'
  |   | 14:47:42,332 DEBUG [CommandExecutor] executing command '[EMAIL 
PROTECTED]'
  |   | 14:47:42,535 DEBUG [HibernateTransactionInterceptor] committing 
hibernate transaction
  |   | 14:47:42,566 DEBUG [JbpmSessionInterceptor] removing jbpm sessions from 
the context
  |   | 14:47:42,566 DEBUG [HibernateSessionInterceptor] removing hibernate 
session from the context
  |   | 14:47:42,566 DEBUG [HibernateSessionInterceptor] removing connection 
from the context
  |   | 14:47:42,566 DEBUG [HibernateSessionInterceptor] closing hibernate 
session
  |   | 14:47:42,566 DEBUG [HibernateSessionFactoryInterceptor] removing 
hibernate session factory from context
  |   | 14:47:42,566 ERROR [CommandExecutor] 
org.jbpm.msg.command.CommandExecutor$MessageProcessingException: message [EMAIL 
PROTECTED]
  |   | 14:47:42,566 INFO  [STDOUT] 
org.jbpm.msg.command.CommandExecutor$MessageProcessingException: message [EMAIL 
PROTECTED]' couldn
  |   | 14:47:42,566 INFO  [STDOUT]     at 
org.jbpm.msg.command.CommandExecutor.executeCommand(CommandExecutor.java:77)
  |   | 14:47:42,566 INFO  [STDOUT]     at 
org.jbpm.msg.command.CommandExecutor.run(CommandExecutor.java:34)
  |   | 14:47:42,566 INFO  [STDOUT] Caused by: 
org.jbpm.graph.def.DelegationException
  |   | 14:47:42,566 INFO  [STDOUT]     at 
org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:299)
  |   | 14:47:42,566 INFO  [STDOUT]     at 
org.jbpm.graph.def.GraphElement$$FastClassByCGLIB$$7a7d6aa6.invoke()
  |   | 14:47:42,566 INFO  [STDOUT]     at 
net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
  |   | 14:47:42,566 INFO  [STDOUT]     at 
org.hibernate.proxy.CGLIBLazyInitializer.intercept(CGLIBLazyInitializer.java:136)
  |   | 14:47:42,566 INFO  [STDOUT]     at 
org.jbpm.graph.def.ProcessDefinition$$EnhancerByCGLIB$$af249621.raiseException()
  |   | 14:47:42,566 INFO  [STDOUT]     at 
org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:293)
  |   | 14:47:42,566 INFO  [STDOUT]     at 
org.jbpm.graph.def.Node.execute(Node.java:314)
  |   | 14:47:42,566 INFO  [STDOUT]     at 
org.jbpm.graph.def.Node$$FastClassByCGLIB$$d187eeda.invoke()
  |   | 14:47:42,566 INFO  [STDOUT]     at 
net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
  |   | 14:47:42,582 INFO  [STDOUT]     at 
org.hibernate.proxy.CGLIBLazyInitializer.intercept(CGLIBLazyInitializer.java:136)
  |   | 14:47:42,582 INFO  [STDOUT]     at 
org.jbpm.graph.def.Node$$EnhancerByCGLIB$$6292fdb1.execute()
  |   | 14:47:42,582 INFO  [STDOUT]     at 
org.jbpm.command.ExecuteNodeCommand.execute(ExecuteNodeCommand.java:29)
  |   | 14:47:42,582 INFO  [STDOUT]     at 
org.jbpm.msg.command.CommandExecutor.executeCommand(CommandExecutor.java:72)
  |   | 14:47:42,582 INFO  [STDOUT]     ... 1 more
  |   | 14:47:42,582 INFO  [STDOUT] Caused by: java.lang.RuntimeException: 
couldn't get value for file 
'classes/org/jbpm/tutorial/action/MyActionHandler.class'
  |   | 14:47:42,582 INFO  [STDOUT]     at 
org.jbpm.file.def.FileDefinition.getBytes(FileDefinition.java:160)
  |   | 14:47:42,582 INFO  [STDOUT]     at 
org.jbpm.instantiation.ProcessClassLoader.findClass(ProcessClassLoader.java:34)
  |   | 14:47:42,582 INFO  [STDOUT]     at 
java.lang.ClassLoader.loadClass(ClassLoader.java:306)
  |   | 14:47:42,582 INFO  [STDOUT]     at 
java.lang.ClassLoader.loadClass(ClassLoader.java:251)
  |   | 14:47:42,582 INFO  [STDOUT]     at 
org.jbpm.instantiation.Delegation.instantiate(Delegation.java:105)
  |   | 14:47:42,582 INFO  [STDOUT]     at 
org.jbpm.instantiation.Delegation.getInstance(Delegation.java:90)
  |   | 14:47:42,582 INFO  [STDOUT]     at 
org.jbpm.instantiation.Delegation$$FastClassByCGLIB$$6bae1598.invoke()
  |   | 14:47:42,582 INFO  [STDOUT]     at 
net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
  |   | 14:47:42,582 INFO  [STDOUT]     at 
org.hibernate.proxy.CGLIBLazyInitializer.intercept(CGLIBLazyInitializer.java:136)
  |   | 14:47:42,582 INFO  [STDOUT]     at 
org.jbpm.instantiation.Delegation$$EnhancerByCGLIB$$48e0ab6f.getInstance()
  |   | 14:47:42,582 INFO  [STDOUT]     at 
org.jbpm.graph.def.Action.execute(Action.java:94)
  |   | 14:47:42,582 INFO  [STDOUT]     at 
org.jbpm.graph.def.Action$$FastClassByCGLIB$$7876e90e.invoke()
  |   | 14:47:42,582 INFO  [STDOUT]     at 
net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
  |   | 14:47:42,582 INFO  [STDOUT]     at 
org.hibernate.proxy.CGLIBLazyInitializer.intercept(CGLIBLazyInitializer.java:136)
  |   | 14:47:42,582 INFO  [STDOUT]     at 
org.jbpm.graph.def.Action$$EnhancerByCGLIB$$627501e5.execute()
  |   | 14:47:42,582 INFO  [STDOUT]     at 
org.jbpm.graph.def.Node.execute(Node.java:310)
  |   | 14:47:42,660 INFO  [STDOUT]     ... 7 more
  |   | 14:47:42,660 INFO  [STDOUT] Caused by: java.lang.RuntimeException: file 
'classes/org/jbpm/tutorial/action/MyActionHandler.class' not found in db
  |   | 14:47:42,660 INFO  [STDOUT]     at 
org.jbpm.file.def.FileDefinition.getByteArray(FileDefinition.java:184)
  |   | 14:47:42,660 INFO  [STDOUT]     at 
org.jbpm.file.def.FileDefinition.getBytesFromDb(FileDefinition.java:176)
  |   | 14:47:42,660 INFO  [STDOUT]     at 
org.jbpm.file.def.FileDefinition.getBytes(FileDefinition.java:157)
  |   | 14:47:42,660 INFO  [STDOUT]     ... 22 more
  |   | 14:47:42,660 DEBUG [HibernateSessionFactoryInterceptor] fetching 
hibernate SessionFactory from JNDI 'java:/jbpm/SessionFactory'
  |   | 
  |   | 14:47:42,660 DEBUG [HibernateSessionFactoryInterceptor] fetching 
hibernate SessionFactory from JNDI 'java:/jbpm/SessionFactory'
  |   | 14:47:42,660 DEBUG [HibernateSessionFactoryInterceptor] placed 
hibernate session factory in context key 'org.hibernate.SessionFactory'
  |   | 14:47:42,660 DEBUG [HibernateSessionInterceptor] opening a hibernate 
session
  |   | 14:47:42,660 DEBUG [HibernateSessionInterceptor] storing hibernate 
session in context key 'org.hibernate.Session'
  |   | 14:47:42,660 DEBUG [HibernateSessionInterceptor] storing the jdbc 
connection created by hiberante in context key 'java.sql.Connection'
  |   | 14:47:42,660 DEBUG [JbpmSessionInterceptor] storing jbpm sessions in 
the context
  |   | 14:47:42,660 DEBUG [HibernateTransactionInterceptor] beginning 
hibernate transaction
  |   | 14:47:42,660 DEBUG [DbMessageServiceImpl] received msg by id 'null'
  |   | 14:47:42,660 DEBUG [HibernateTransactionInterceptor] committing 
hibernate transaction
  |   | 14:47:42,660 DEBUG [JbpmSessionInterceptor] removing jbpm sessions from 
the context
  |   | 14:47:42,660 DEBUG [HibernateSessionInterceptor] removing hibernate 
session from the context
  |   | 14:47:42,660 DEBUG [HibernateSessionInterceptor] removing connection 
from the context
  |   | 14:47:42,660 DEBUG [HibernateSessionInterceptor] closing hibernate 
session
  |   | 14:47:42,660 DEBUG [HibernateSessionFactoryInterceptor] removing 
hibernate session factory from context
  |   | 14:47:42,660 INFO  [STDOUT] Exception in thread 
"CommandExecutor(EXECUTE)"
  |   | 14:47:42,660 INFO  [STDOUT] java.lang.IllegalArgumentException: attempt 
to create delete event with null entity
  |   | 14:47:42,738 INFO  [STDOUT]     at 
org.hibernate.event.DeleteEvent.(DeleteEvent.java:24)
  |   | 14:47:42,738 INFO  [STDOUT]     at 
org.hibernate.impl.SessionImpl.delete(SessionImpl.java:663)
  |   | 14:47:42,738 INFO  [STDOUT]     at 
org.jbpm.db.MessagingSession.delete(MessagingSession.java:28)
  |   | 14:47:42,738 INFO  [STDOUT]     at 
org.jbpm.msg.db.DbMessageServiceImpl.receiveByIdNoWait(DbMessageServiceImpl.java:55)
  |   | 14:47:42,738 INFO  [STDOUT]     at 
org.jbpm.msg.command.CommandExecutor.handleProcessingException(CommandExecutor.java:101)
  |   | 14:47:42,738 INFO  [STDOUT]     at 
org.jbpm.msg.command.CommandExecutor.run(CommandExecutor.java:39)
  |   | 
  | 

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