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Re: Running humantasks with HumanTaskService(Running in JBoss)
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created by <a href="http://community.jboss.org/people/rajan01">Rajan Bansal</a> in <i>jBPM</i> - <a href="http://community.jboss.org/message/627353#627353">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hi ,</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Actually I want to run the stand-alone service <strong>"HumanTaskService"</strong> via Jboss but not by ant.</p><p>And in this I want my Oracle database is used for all the transactions instead of its own db.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>So I make the necessary changes in the<strong><em> jbpm-human-task-5.1.0.Final.jar:</em></strong></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I changed the Persistence.xml as I used the JTA data-source for it:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><persistence-unit name="org.jbpm.task" transaction-type="JTA"></p><p>    <provider>org.hibernate.ejb.HibernatePersistence</provider></p><p>   <strong>  <jta-data-source>java:/testDS1</jta-data-source>   </strong></p><p>     <class>org.jbpm.task.Attachment</class></p><p>     <class>org.jbpm.task.Content</class></p><p>     <class>org.jbpm.task.BooleanExpression</class></p><p>     <class>org.jbpm.task.Comment</class></p><p>     <class>org.jbpm.task.Deadline</class></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>And my datasource is:</p><p><datasources></p><p>  <xa-datasource></p><p>    <jndi-name>testDS1</jndi-name></p><p>    <xa-datasource-class>oracle.jdbc.xa.client.OracleXADataSource</xa-datasource-class></p><p>    <xa-datasource-property name="URL">jdbc:oracle:thin:@172.xx.x.251:1521:lupin</xa-datasource-property></p><p>   <user-name>xxxxx</user-name></p><p>  <password>xxxxx</password>    </p><p>  </xa-datasource></p><p> </datasources></p><p> It is successfully deployed in the jboss.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>But when I want to start "humantaskservice" code in the JBoss then it gives the following error when I am trying to add users:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>public void startTaskService() {</p><p>        EntityManagerFactory emf = Persistence.createEntityManagerFactory("org.jbpm.task");</p><p>     </p><p>        TaskService taskService = new TaskService(emf, SystemEventListenerFactory.getSystemEventListener());</p><p>        TaskServiceSession taskSession = taskService.createSession();</p><p>        </p><p>        // Add users</p><p>        Map vars = new HashMap();</p><p>        Reader reader = new InputStreamReader( StartTaskService.class.getResourceAsStream( "LoadUsers.mvel" ) );     </p><p>        Map<String, User> users = ( Map<String, User> ) eval( reader, vars );   </p><p>        for ( User user : users.values() ) {</p><p>            taskSession.addUser( user );</p><p>        }           </p><p>        </p><p>        reader = new InputStreamReader( StartTaskService.class.getResourceAsStream( "LoadGroups.mvel" ) );      </p><p>        Map<String, Group> groups = ( Map<String, Group> ) eval( reader, vars );     </p><p>        for ( Group group : groups.values() ) {</p><p>            taskSession.addGroup(group);</p><p>        }</p><p>        </p><p>        // start server</p><p>        MinaTaskServer server = new MinaTaskServer(taskService);</p><p>        Thread thread = new Thread(server);</p><p>        thread.start();</p><p>        taskSession.dispose();</p><p>        System.out.println("Task service started correctly !");</p><p>        System.out.println("Task service running ...");</p><p>    }</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><strong>the error is:</strong></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>10:23:18,772 INFO  [SchemaExport] Running hbm2ddl schema export</p><p>10:23:18,772 INFO  [SchemaExport] exporting generated schema to database</p><p>10:23:20,895 INFO  [SchemaExport] schema export complete</p><p>10:23:20,895 INFO  [NamingHelper] JNDI InitialContext properties:{}</p><p>10:23:21,238 INFO  [STDOUT] Hibernate: select task0_.id as col_0_0_, deadline1_.id as col_1_0_, deadline1_.deadline_date as col_2_0_ from Task task0_, Deadline deadline1_ where (deadline1_.id in (select startdeadl2_.id from Deadline startdeadl2_ where task0_.id=startdeadl2_.Deadlines_StartDeadLine_Id) or deadline1_.id in (select enddeadlin3_.id from Deadline enddeadlin3_ where task0_.id=enddeadlin3_.Deadlines_EndDeadLine_Id)) and deadline1_.escalated=0 order by deadline1_.deadline_date</p><p>10:23:21,659 INFO  [STDOUT] Adding userss........</p><p><strong>10:23:21,691 ERROR [[springmvc]] Servlet.service() for servlet springmvc threw exception</strong></p><p><strong>java.lang.IllegalStateException: A JTA EntityManager cannot use getTransaction()</strong></p><p>    at org.hibernate.ejb.AbstractEntityManagerImpl.getTransaction(AbstractEntityManagerImpl.java:324)</p><p>    at org.jbpm.task.service.TaskServiceSession.doOperationInTransaction(TaskServiceSession.java:811)</p><p>    at org.jbpm.task.service.TaskServiceSession.persistInTransaction(TaskServiceSession.java:786)</p><p>    at org.jbpm.task.service.TaskServiceSession.addUser(TaskServiceSession.java:69)</p><p>    at com.service.StartTaskService.startTaskService(StartTaskService.java:54)</p><p>    at com.service.HumanTaskService.startHumanTask(HumanTaskService.java:17)</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.springframework.web.servlet.mvc.multiaction.MultiActionController.invokeNamedMethod(MultiActionController.java:471)</p><p>    at org.springframework.web.servlet.mvc.multiaction.MultiActionController.handleRequestInternal(MultiActionController.java:408)</p><p>    at org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:153)</p><p>    at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:48)</p><p>    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:790)</p><p>    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719)</p><p>    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)</p><p>    at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:560)</p><p>    at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)</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.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.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>10:25:21,982 INFO  [ServletContextListener] Welcome to Seam 2.1.0.SP1</p><p>10:25:30,353 WARN  [Component] Component class should be serializable: org.jboss.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>please tell me what to do.</p></div>
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