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JBPM 5.1 Final Release with jboss-5.1.0.GA - Service Task
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created by <a href="http://community.jboss.org/people/priyakpandey">priyakpandey</a> in <i>jBPM</i> - <a href="http://community.jboss.org/message/612626#612626">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hi,</p><p>I have created and process which has a Service Task.</p><p><span style="color: #ff0000;"><strong>Start -> Servicet Task -> End</strong></span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>When i run this through a java test program it<strong> works fine</strong>.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</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>public class ProcessTest {</p><p>            public static final void main(String[] args) {</p><p>                    System.out.println("ProcessTest.main()");</p><p>                    try {</p><p>                              // load up the knowledge base</p><p>                              KnowledgeBase kbase = readKnowledgeBase();</p><p>                              StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();</p><p>                              KnowledgeRuntimeLogger logger = KnowledgeRuntimeLoggerFactory.newFileLogger(ksession, "test");</p><p>                              ksession.getWorkItemManager().registerWorkItemHandler("Human Task", new WSHumanTaskHandler());</p><p>                              ksession.getWorkItemManager().registerWorkItemHandler("Service Task", new ServiceTaskHandler());</p><p>                              System.out.println("ProcessTest.main()...executed");</p><p>                              // start a new process instance</p><p>                              ksession.startProcess("com.sample.bpmn.hello.service");</p><p>                              logger.close();</p><p>                    } catch (Throwable t) {</p><p>                              t.printStackTrace();</p><p>                    }</p><p>          }</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>          private static KnowledgeBase readKnowledgeBase() throws Exception {</p><p>                    KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();</p><p>                    kbuilder.add(ResourceFactory.newClassPathResource("ServiceSample.bpmn"), ResourceType.BPMN2);</p><p>                    return kbuilder.newKnowledgeBase();</p><p>          }</p><p>  </p><p>}</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>The issue is when i try to start the process from jbpm-console i get following erro in <jboss>\servers\default\logs\server.log,</p><p>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</p><p>javax.ws.rs.WebApplicationException: org.drools.WorkItemHandlerNotFoundException: Could not find work item handler for Service Task</p><p>          at org.jboss.bpm.console.server.ProcessMgmtFacade.newInstance(ProcessMgmtFacade.java:209)</p><p>          at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</p><p>          at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)</p><p>          at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)</p><p>          at java.lang.reflect.Method.invoke(Method.java:597)</p><p>          at org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:117)</p><p>          at org.jboss.resteasy.core.ResourceMethod.invokeOnTarget(ResourceMethod.java:260)</p><p>          at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:232)</p><p>          at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:166)</p><p>          at org.jboss.resteasy.core.DispatcherUtilities.getJaxrsResponse(DispatcherUtilities.java:142)</p><p>          at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:356)</p><p>          at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:173)</p><p>          at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:93)</p><p>          at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:68)</p><p>          at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)</p><p>          at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)</p><p>          at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)</p><p>          at org.jboss.bpm.console.server.util.GWTJsonFilter.doFilter(GWTJsonFilter.java:59)</p><p>          at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)</p><p>          at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)</p><p>          at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)</p><p>          at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)</p><p>          at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)</p><p>          at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235)</p><p>          at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)</p><p>          at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)</p><p>          at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:525)</p><p>          at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)</p><p>          at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)</p><p>          at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)</p><p>          at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)</p><p>          at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)</p><p>          at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)</p><p>          at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)</p><p>          at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330)</p><p>          at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829)</p><p>          at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:598)</p><p>          at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)</p><p>          at java.lang.Thread.run(Thread.java:662)</p><p>Caused by: org.drools.WorkItemHandlerNotFoundException: Could not find work item handler for Service Task</p><p>          at org.drools.persistence.jpa.processinstance.JPAWorkItemManager.throwWorkItemNotFoundException(JPAWorkItemManager.java:60)</p><p>          at org.drools.persistence.jpa.processinstance.JPAWorkItemManager.internalExecuteWorkItem(JPAWorkItemManager.java:55)</p><p>          at org.jbpm.workflow.instance.node.WorkItemNodeInstance.internalTrigger(WorkItemNodeInstance.java:105)</p><p>          at org.jbpm.workflow.instance.impl.NodeInstanceImpl.trigger(NodeInstanceImpl.java:122)</p><p>          at org.jbpm.workflow.instance.impl.NodeInstanceImpl.triggerConnection(NodeInstanceImpl.java:185)</p><p>          at org.jbpm.workflow.instance.impl.NodeInstanceImpl.triggerCompleted(NodeInstanceImpl.java:150)</p><p>          at org.jbpm.workflow.instance.node.StartNodeInstance.triggerCompleted(StartNodeInstance.java:49)</p><p>          at org.jbpm.workflow.instance.node.StartNodeInstance.internalTrigger(StartNodeInstance.java:41)</p><p>          at org.jbpm.workflow.instance.impl.NodeInstanceImpl.trigger(NodeInstanceImpl.java:122)</p><p>          at org.jbpm.ruleflow.instance.RuleFlowProcessInstance.internalStart(RuleFlowProcessInstance.java:35)</p><p>          at org.jbpm.process.instance.impl.ProcessInstanceImpl.start(ProcessInstanceImpl.java:188)</p><p>          at org.jbpm.workflow.instance.impl.WorkflowProcessInstanceImpl.start(WorkflowProcessInstanceImpl.java:302)</p><p>          at org.jbpm.process.instance.ProcessRuntimeImpl.startProcessInstance(ProcessRuntimeImpl.java:154)</p><p>          at org.jbpm.process.instance.ProcessRuntimeImpl.startProcess(ProcessRuntimeImpl.java:124)</p><p>          at org.drools.common.AbstractWorkingMemory.startProcess(AbstractWorkingMemory.java:1095)</p><p>          at org.drools.impl.StatefulKnowledgeSessionImpl.startProcess(StatefulKnowledgeSessionImpl.java:306)</p><p>          at org.drools.command.runtime.process.StartProcessCommand.execute(StartProcessCommand.java:119)</p><p>          at org.drools.command.runtime.process.StartProcessCommand.execute(StartProcessCommand.java:38)</p><p>          at org.drools.persistence.SingleSessionCommandService.execute(SingleSessionCommandService.java:292)</p><p>          at org.drools.command.impl.CommandBasedStatefulKnowledgeSession.startProcess(CommandBasedStatefulKnowledgeSession.java:222)</p><p>          at org.jbpm.integration.console.CommandDelegate.startProcess(CommandDelegate.java:245)</p><p>          at org.jbpm.integration.console.ProcessManagement.newInstance(ProcessManagement.java:75)</p><p>          at org.jboss.bpm.console.server.ProcessMgmtFacade.newInstance(ProcessMgmtFacade.java:204)</p><p>          ... 38 more</p></div>
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