4 Replies Latest reply on Jan 4, 2006 8:47 PM by man2281

intergrate jbpm into tomcat

man2281 Dec 22, 2005 7:59 PM

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(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 [GraphElement] action threw exception: null
java.lang.NullPointerException
 at org.jbpm.graph.def.Action.execute(Action.java:79)
 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)
org.jbpm.graph.def.DelegationException
 at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:299)
 at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:293)
 at org.jbpm.graph.def.GraphElement.executeActions(GraphElement.java:195)
 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)
Caused by: java.lang.NullPointerException
 at org.jbpm.graph.def.Action.execute(Action.java:79)
 at org.jbpm.graph.def.GraphElement.executeActions(GraphElement.java:186)
 ... 28 more
Error in WorkflowManager==null

1. Re: intergrate jbpm into tomcat

koen.aers Dec 23, 2005 2:04 PM (in response to man2281)

You should either include your actionhandler classes in a jar somewhere on the classpath of your webapp or deploy them into the database.

Regards,
Koen
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2. Re: intergrate jbpm into tomcat

man2281 Dec 27, 2005 1:05 AM (in response to man2281)

thanks koen. but this is not i want. i'm still under development. if i use test case it run without any error, but when i use webapp then the error came out. i think i miss configured somewhere about the path. Please help me!!

Thank you.

regards,
Alex Sim
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3. Re: intergrate jbpm into tomcat

fmuhlenberg Dec 27, 2005 11:01 PM (in response to man2281)

Try placing your action handler classes in the WEB-INF/classes directory before you create your war file.
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4. Re: intergrate jbpm into tomcat

man2281 Jan 4, 2006 8:47 PM (in response to man2281)

Hi fmuhlenberg,

i already put action handler classes in web-inf/classes but still cannot work!!
am i need to set any configuration or path or anything? please help!!

Thanks.

Regards,
Alex
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