[jboss-dev-forums] [jBPM Development] - Problem to use JBPM on gwt project

sahar mohebi [https://community.jboss.org/people/sahar_m] created the discussion "Problem to use JBPM on gwt project" To view the discussion, visit: https://community.jboss.org/message/809792#809792 -------------------------------------------------------------- Hi friends, I am new on jbpm with many problems!!! I want to use jbpm on my gwt project  and mysql. I get error when I want to create EntityManagerFactory: avax.persistence.PersistenceException: PersistenceUnit: org.jbpm.persistence.jpa Unable to build EntityManagerFactory     at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:677)     at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:126)     at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:51)     at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:33)     at com.ayriksoft.desktopapp.server.TaskServiceManager.getInstance(TaskServiceManager.java:319)     at com.ayriksoft.desktopapp.server.JBPMServiceImpl.setup(JBPMServiceImpl.java:116)     at com.ayriksoft.desktopapp.server.JBPMServiceImpl.initializeJbpmSession(JBPMServiceImpl.java:51)     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 com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:561)     at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:208)     at com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:248)     at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62)     at javax.servlet.http.HttpServlet.service(HttpServlet.java:647)     at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)     at org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:393)     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)     at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)     at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:936)     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)     at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)     at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1004)     at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)     at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)     at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)     at java.lang.Thread.run(Thread.java:619) Caused by: org.hibernate.HibernateException: Could not obtain BTM transaction manager instance     at org.hibernate.transaction.BTMTransactionManagerLookup.getTransactionManager(BTMTransactionManagerLookup.java:50)     at org.hibernate.impl.SessionFactoryImpl.(BitronixTransactionManager.java:62)     ... 45 more Its my gwt service class: public class JBPMServiceImpl extends RemoteServiceServlet implements JBPMService {     protected StatefulKnowledgeSession session;     private MockWorkItemHandler mockWorkItemHandler;     Map&lt;Resource, ResourceType&gt; resources;      TaskServiceManager tc;     @Override     public boolean initializeJbpmSession() {         try {             setup();             session = tc.getSession();//kbase.newStatefulKnowledgeSession();             KnowledgeRuntimeLoggerFactory.newConsoleLogger(session);             session.addEventListener(new DefaultAgendaEventListener() {                 @Override                 public void afterRuleFlowGroupActivated(org.drools.event.rule.RuleFlowGroupActivatedEvent event) {                     session.fireAllRules();                 }             });             session.addEventListener(new DefaultProcessEventListener() {                 @Override                 public void beforeProcessStarted(ProcessStartedEvent event) {                     session.insert(event.getProcessInstance());                 }             });         } catch (Exception ex) {             ex.printStackTrace();             return false;         }         return true;     }     protected Map&lt;Resource, ResourceType&gt; getResources() {         try {             if (resources == null) {                 resources = new HashMap&lt;Resource, ResourceType&gt;();                 resources.put(ResourceFactory.newFileResource(System.getProperty("user.home") + "/V1/EmergencyBedRequestV1.bpmn"), ResourceType.BPMN2);                 resources.put(ResourceFactory.newFileResource(System.getProperty("user.home") + "/V1/bedAssignmentV1.drl"), ResourceType.DRL);             }         } catch (Exception ex) {             ex.printStackTrace();         }         return resources;     }     public void setup() {         try {               tc=TaskServiceManager.getInstance(); //            tc.startService();             session = tc.getSession();             tc.connect();             KnowledgeRuntimeLogger logger = KnowledgeRuntimeLoggerFactory.newThreadedFileLogger(session, "testlog", 1000);             CommandBasedWSHumanTaskHandler taskHandler = new CommandBasedWSHumanTaskHandler(session);             session.getWorkItemManager().registerWorkItemHandler("Human Task", taskHandler);             session.getWorkItemManager().registerWorkItemHandler("Notification System", taskHandler);             taskHandler.connect();         } catch (Exception ex) {             Logger.getLogger(JBPMServiceImpl.class.getName()).log(Level.SEVERE, null, ex);             ex.printStackTrace();       throw new RuntimeException("error while creating session", ex);         }     } and Its my TaskServiceManager.java: public class TaskServiceManager {     private static String ipAddress = "127.0.0.1";     //private static int port = 5445;     private static int port = 9123;     private static TaskClient client;     private static Map<String, List<String>> groupListMap = new HashMap();     private static StatefulKnowledgeSession ksession; static TaskServiceManager instance = null;     static Thread thread;     private TaskServiceManager() {     }     public static TaskServiceManager getInstance() {         if (instance == null) {             instance = new TaskServiceManager();             EntityManagerFactory emf = Persistence.createEntityManagerFactory("org.jbpm.persistence.jpa");             TaskService taskService = new TaskService(emf, SystemEventListenerFactory.getSystemEventListener());             MinaTaskServer server = new MinaTaskServer(taskService);             Thread thread = new Thread(server);             thread.start();         }         return instance;     }     public void setConnection(String ipAddress, int port) {         ipAddress = ipAddress;         port = port;     }     public void connect() {         if (client == null) {          client = new TaskClient(new MinaTaskClientConnector("client 1",          new  MinaTaskClientHandler(SystemEventListenerFactory.getSystemEventListener())));           client.connect("127.0.0.1", 9123);             boolean connected = client.connect(ipAddress, port);             if (!connected) {                 throw new IllegalArgumentException(                         "Could not connect task client");             }         } }   public KnowledgeBase readKnowledgeBase(Map<Resource, ResourceType> resources)             throws Exception {         KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();         for (Map.Entry<Resource, ResourceType> entry : this.getResources().entrySet()) {             kbuilder.add(entry.getKey(), entry.getValue());         }           if (kbuilder.hasErrors()) {             KnowledgeBuilderErrors errors = kbuilder.getErrors();             for (KnowledgeBuilderError error : errors) {                 System.out.println(">>> Error:" + error.getMessage());             }             throw new IllegalStateException(">>> Knowledge couldn't be parsed! ");         }         KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();         kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());         return kbase;     }     public StatefulKnowledgeSession getSession()             throws Exception {         if (ksession == null) {             ksession = createSession();         }         return ksession;     }     public StatefulKnowledgeSession createSession()             throws Exception {         System.out.print("ok1");         KnowledgeBase kbase = readKnowledgeBase(getResources());         System.out.print("ok2");         EntityManagerFactory emf = Persistence.createEntityManagerFactory("org.jbpm.persistence.jpa");         System.out.print("ok3");         Environment env = KnowledgeBaseFactory.newEnvironment();         env.set("drools.persistence.jpa.EntityManagerFactory", emf);         env.set("drools.transaction.TransactionManager", TransactionManagerServices.getTransactionManager());         env.set("drools.Globals", new MapGlobalResolver()); //         Properties properties = new Properties();         properties.put("drools.processInstanceManagerFactory", "org.jbpm.persistence.processinstance.JPAProcessInstanceManagerFactory");         properties.put("drools.processSignalManagerFactory", "org.jbpm.persistence.processinstance.JPASignalManagerFactory");         KnowledgeSessionConfiguration config = KnowledgeBaseFactory.newKnowledgeSessionConfiguration(properties);         return JPAKnowledgeService.newStatefulKnowledgeSession(kbase , config, env);     }     static Map<Resource, ResourceType> resources;     static Map<Resource, ResourceType> getResources() {         try {             if (resources == null) {                 resources = new HashMap<Resource, ResourceType>();                 resources.put(ResourceFactory.newFileResource(System.getProperty("user.home") + "/V1/EmergencyBedRequestV1.bpmn"), ResourceType.BPMN2);                 resources.put(ResourceFactory.newFileResource(System.getProperty("user.home") + "/V1/bedAssignmentV1.drl"), ResourceType.DRL);             }         } catch (Exception ex) {             ex.printStackTrace();         }         return resources;     } } and its my persistence.xml fil in META_INF: -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/809792#809792] Start a new discussion in jBPM Development at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&...]