i'm trying to do jbpm in tomcat project in eclipse but the error cannot find
ActionHandler class make me stop in the half way. Pls help me on this!
| 09:02:09,593 DEBUG [GraphElement] event 'process-start' on
'ProcessDefinition(hello world)' for 'Token(/)'
| 09:02:09,593 DEBUG [GraphElement] event 'before-signal' on
'StartState(start)' for 'Token(/)'
| 09:02:09,593 DEBUG [GraphElement] event 'node-leave' on 'StartState(start)'
for 'Token(/)'
| 09:02:09,593 DEBUG [GraphElement] event 'transition' on 'Transition(1)' for
'Token(/)'
| 09:02:09,593 DEBUG [GraphElement] executing action 'action[action]'
| 09:02:09,593 ERROR [Delegation] couldn't load delegation class
'com.zematic.at.jbpm.ActionHandle'
| java.lang.ClassNotFoundException: class 'com.zematic.at.jbpm.ActionHandle'
could not be found by the process classloader
| at
org.jbpm.instantiation.ProcessClassLoader.findClass(ProcessClassLoader.java:39)
| at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
| at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
| at org.jbpm.instantiation.Delegation.instantiate(Delegation.java:105)
| at org.jbpm.instantiation.Delegation.getInstance(Delegation.java:90)
| at org.jbpm.graph.def.Action.execute(Action.java:78)
| at org.jbpm.graph.def.GraphElement.executeActions(GraphElement.java:186)
| at
org.jbpm.graph.def.GraphElement.fireAndPropagateEvent(GraphElement.java:149)
| at org.jbpm.graph.def.GraphElement.fireEvent(GraphElement.java:133)
| at org.jbpm.graph.def.Transition.take(Transition.java:79)
| at org.jbpm.graph.def.Node.leave(Node.java:349)
| at org.jbpm.graph.node.StartState.leave(StartState.java:73)
| at org.jbpm.graph.exe.Token.signal(Token.java:127)
| at org.jbpm.graph.exe.Token.signal(Token.java:92)
| at org.jbpm.graph.exe.ProcessInstance.signal(ProcessInstance.java:201)
| at com.zematic.at.Workflow.deployProcessDefinition(Workflow.java:132)
| at com.zematic.at.Workflow.testSimplePersistence(Workflow.java:40)
| at com.zematic.at.WorkflowManager.doPost(WorkflowManager.java:25)
| at com.zematic.at.WorkflowManager.doGet(WorkflowManager.java:10)
| at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
| at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
| at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
| at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
| at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
| at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
| at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
| at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
| at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
| at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
| at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856)
| at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744)
| at
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
| at
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
| at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
| at java.lang.Thread.run(Thread.java:595)
| 09:02:09,593 ERROR [Delegation] couldn't instantiate delegation class
'com.zematic.at.jbpm.ActionHandle'
| java.lang.NullPointerException
| at
org.jbpm.instantiation.FieldInstantiator.newInstance(FieldInstantiator.java:55)
| at
org.jbpm.instantiation.FieldInstantiator.instantiate(FieldInstantiator.java:14)
| at org.jbpm.instantiation.Delegation.instantiate(Delegation.java:128)
| at org.jbpm.instantiation.Delegation.getInstance(Delegation.java:90)
| at org.jbpm.graph.def.Action.execute(Action.java:78)
| at org.jbpm.graph.def.GraphElement.executeActions(GraphElement.java:186)
| at
org.jbpm.graph.def.GraphElement.fireAndPropagateEvent(GraphElement.java:149)
| at org.jbpm.graph.def.GraphElement.fireEvent(GraphElement.java:133)
| at org.jbpm.graph.def.Transition.take(Transition.java:79)
| at org.jbpm.graph.def.Node.leave(Node.java:349)
| at org.jbpm.graph.node.StartState.leave(StartState.java:73)
| at org.jbpm.graph.exe.Token.signal(Token.java:127)
| at org.jbpm.graph.exe.Token.signal(Token.java:92)
| at org.jbpm.graph.exe.ProcessInstance.signal(ProcessInstance.java:201)
| at com.zematic.at.Workflow.deployProcessDefinition(Workflow.java:132)
| at com.zematic.at.Workflow.testSimplePersistence(Work