[jboss-user] [jBPM] - JBPM 5.1 Final Release with jboss-5.1.0.GA - Service Task

priyakpandey do-not-reply at jboss.com
Wed Jun 29 22:57:38 EDT 2011


priyakpandey [http://community.jboss.org/people/priyakpandey] created the discussion

"JBPM 5.1 Final Release with jboss-5.1.0.GA - Service Task"

To view the discussion, visit: http://community.jboss.org/message/612626#612626

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Hi,
I have created and process which has a Service Task.
*Start -> Servicet Task -> End*

When i run this through a java test program it *works fine*.It uses org.jbpm.bpmn2.handler.ServiceTaskHandler which is present in jbpm-bpmn2-5.1.0.Final.jar and is deployed on to the jbpm-gwt-console-server.war

public class ProcessTest {
            public static final void main(String[] args) {
                    System.out.println("ProcessTest.main()");
                    try {
                              // load up the knowledge base
                              KnowledgeBase kbase = readKnowledgeBase();
                              StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();
                              KnowledgeRuntimeLogger logger = KnowledgeRuntimeLoggerFactory.newFileLogger(ksession, "test");
                              ksession.getWorkItemManager().registerWorkItemHandler("Human Task", new WSHumanTaskHandler());
                              ksession.getWorkItemManager().registerWorkItemHandler("Service Task", new ServiceTaskHandler());
                              System.out.println("ProcessTest.main()...executed");
                              // start a new process instance
                              ksession.startProcess("com.sample.bpmn.hello.service");
                              logger.close();
                    } catch (Throwable t) {
                              t.printStackTrace();
                    }
          }


          private static KnowledgeBase readKnowledgeBase() throws Exception {
                    KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
                    kbuilder.add(ResourceFactory.newClassPathResource("ServiceSample.bpmn"), ResourceType.BPMN2);
                    return kbuilder.newKnowledgeBase();
          }

}

The issue is when i try to start the process from jbpm-console i get following erro in <jboss>\servers\default\logs\server.log,
2011-06-29 16:07:58,802 INFO  [STDOUT] (http-localhost%2F127.0.0.1-8080-1) 16:07:58,802 ERROR [SynchronousDispatcher] failed to execute
javax.ws.rs.WebApplicationException: org.drools.WorkItemHandlerNotFoundException: Could not find work item handler for Service Task
          at org.jboss.bpm.console.server.ProcessMgmtFacade.newInstance(ProcessMgmtFacade.java:209)
          at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
          at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
          at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
          at java.lang.reflect.Method.invoke(Method.java:597)
          at org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:117)
          at org.jboss.resteasy.core.ResourceMethod.invokeOnTarget(ResourceMethod.java:260)
          at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:232)
          at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:166)
          at org.jboss.resteasy.core.DispatcherUtilities.getJaxrsResponse(DispatcherUtilities.java:142)
          at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:356)
          at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:173)
          at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:93)
          at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:68)
          at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
          at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
          at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
          at org.jboss.bpm.console.server.util.GWTJsonFilter.doFilter(GWTJsonFilter.java:59)
          at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
          at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
          at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
          at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
          at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
          at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235)
          at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
          at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)
          at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:525)
          at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)
          at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)
          at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)
          at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
          at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
          at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)
          at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
          at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330)
          at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829)
          at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:598)
          at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
          at java.lang.Thread.run(Thread.java:662)
Caused by: org.drools.WorkItemHandlerNotFoundException: Could not find work item handler for Service Task
          at org.drools.persistence.jpa.processinstance.JPAWorkItemManager.throwWorkItemNotFoundException(JPAWorkItemManager.java:60)
          at org.drools.persistence.jpa.processinstance.JPAWorkItemManager.internalExecuteWorkItem(JPAWorkItemManager.java:55)
          at org.jbpm.workflow.instance.node.WorkItemNodeInstance.internalTrigger(WorkItemNodeInstance.java:105)
          at org.jbpm.workflow.instance.impl.NodeInstanceImpl.trigger(NodeInstanceImpl.java:122)
          at org.jbpm.workflow.instance.impl.NodeInstanceImpl.triggerConnection(NodeInstanceImpl.java:185)
          at org.jbpm.workflow.instance.impl.NodeInstanceImpl.triggerCompleted(NodeInstanceImpl.java:150)
          at org.jbpm.workflow.instance.node.StartNodeInstance.triggerCompleted(StartNodeInstance.java:49)
          at org.jbpm.workflow.instance.node.StartNodeInstance.internalTrigger(StartNodeInstance.java:41)
          at org.jbpm.workflow.instance.impl.NodeInstanceImpl.trigger(NodeInstanceImpl.java:122)
          at org.jbpm.ruleflow.instance.RuleFlowProcessInstance.internalStart(RuleFlowProcessInstance.java:35)
          at org.jbpm.process.instance.impl.ProcessInstanceImpl.start(ProcessInstanceImpl.java:188)
          at org.jbpm.workflow.instance.impl.WorkflowProcessInstanceImpl.start(WorkflowProcessInstanceImpl.java:302)
          at org.jbpm.process.instance.ProcessRuntimeImpl.startProcessInstance(ProcessRuntimeImpl.java:154)
          at org.jbpm.process.instance.ProcessRuntimeImpl.startProcess(ProcessRuntimeImpl.java:124)
          at org.drools.common.AbstractWorkingMemory.startProcess(AbstractWorkingMemory.java:1095)
          at org.drools.impl.StatefulKnowledgeSessionImpl.startProcess(StatefulKnowledgeSessionImpl.java:306)
          at org.drools.command.runtime.process.StartProcessCommand.execute(StartProcessCommand.java:119)
          at org.drools.command.runtime.process.StartProcessCommand.execute(StartProcessCommand.java:38)
          at org.drools.persistence.SingleSessionCommandService.execute(SingleSessionCommandService.java:292)
          at org.drools.command.impl.CommandBasedStatefulKnowledgeSession.startProcess(CommandBasedStatefulKnowledgeSession.java:222)
          at org.jbpm.integration.console.CommandDelegate.startProcess(CommandDelegate.java:245)
          at org.jbpm.integration.console.ProcessManagement.newInstance(ProcessManagement.java:75)
          at org.jboss.bpm.console.server.ProcessMgmtFacade.newInstance(ProcessMgmtFacade.java:204)
          ... 38 more
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