[jBPM] - how to handle this?

yu zhou [https://community.jboss.org/people/zydzjy] created the discussion

"how to handle this?"

To view the discussion, visit: https://community.jboss.org/message/827890#827890

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This is my task server:
 
import java.util.HashMap;
import java.util.Map;
import javax.persistence.EntityManagerFactory;
import javax.persistence.Persistence;
import org.drools.KnowledgeBaseFactory;
import org.drools.SystemEventListenerFactory;
import org.drools.runtime.Environment;
import org.drools.runtime.EnvironmentName;
import org.jbpm.task.User;
import org.jbpm.task.service.TaskService;
import org.jbpm.task.service.TaskServiceSession;
import org.jbpm.task.service.mina.MinaTaskServer;
 
import bitronix.tm.resource.jdbc.PoolingDataSource;
 
public class JBPMTaskServer{
 public JBPMTaskServer() {
  // TODO Auto-generated constructor stub
 }
 /**
  * @param args
  */
 public static void main(String[] args) {
  // TODO Auto-generated method stub
  setupDataSource();
  //String dialect = properties.getProperty("persistence.persistenceunit.dialect", "org.hibernate.dialect.H2Dialect");
  Map<String, String> map = new HashMap<String, String>();
  map.put("hibernate.dialect", "org.hibernate.dialect.MySQL5Dialect");
        EntityManagerFactory emf = Persistence
    .createEntityManagerFactory("org.jbpm.persistence.jpa",map); 
   
/*  Environment env = KnowledgeBaseFactory.newEnvironment();
  env.set(EnvironmentName.ENTITY_MANAGER_FACTORY, emf);*/
  TaskService taskService = new TaskService(emf, SystemEventListenerFactory.getSystemEventListener());
  TaskServiceSession taskSession = taskService.createSession();
        // now register new users and groups
        //taskSession.addUser(new User("mary"));
        //taskSession.addUser(new User("john"));
  
  MinaTaskServer server = new MinaTaskServer( taskService );
  Thread thread = new Thread( server );
  thread.start();
 }
 
 private static void setupDataSource(){
  PoolingDataSource ds = new PoolingDataSource();
  ds.setUniqueName("jdbc/jbpm-ds");
  ds.setClassName(com.mysql.jdbc.jdbc2.optional.MysqlXADataSource.class
    .getName());
  ds.setMaxPoolSize(3);
  ds.setAllowLocalTransactions(true);
  ds.getDriverProperties().put("user", "jbossjbpm");
  ds.getDriverProperties().put("password", "jbossjbpm");
  ds.getDriverProperties().put("URL", "jdbc:mysql://localhost:3306/jbpm");
  // ds.getDriverProperties().put("driverClassName",
  // "com.mysql.jdbc.Driver");
  ds.init();
 }
}

 And this is my task client,
and i seprate this class into two projects:

 
import java.util.HashMap;
import java.util.Map;
import javax.persistence.EntityManagerFactory;
import javax.persistence.Persistence;
import org.drools.KnowledgeBaseFactory;
import org.drools.SystemEventListenerFactory;
import org.drools.runtime.Environment;
import org.drools.runtime.EnvironmentName;
import org.jbpm.task.User;
import org.jbpm.task.service.TaskService;
import org.jbpm.task.service.TaskServiceSession;
import org.jbpm.task.service.mina.MinaTaskServer;
 
import bitronix.tm.resource.jdbc.PoolingDataSource;
 
public class JBPMTaskServer{
 public JBPMTaskServer() {
  // TODO Auto-generated constructor stub
 }
 /**
  * @param args
  */
 public static void main(String[] args) {
  // TODO Auto-generated method stub
  setupDataSource();
  //String dialect = properties.getProperty("persistence.persistenceunit.dialect", "org.hibernate.dialect.H2Dialect");
  Map<String, String> map = new HashMap<String, String>();
  map.put("hibernate.dialect", "org.hibernate.dialect.MySQL5Dialect");
        EntityManagerFactory emf = Persistence
    .createEntityManagerFactory("org.jbpm.persistence.jpa",map); 
   
/*  Environment env = KnowledgeBaseFactory.newEnvironment();
  env.set(EnvironmentName.ENTITY_MANAGER_FACTORY, emf);*/
  TaskService taskService = new TaskService(emf, SystemEventListenerFactory.getSystemEventListener());
  TaskServiceSession taskSession = taskService.createSession();
        // now register new users and groups
        //taskSession.addUser(new User("mary"));
        //taskSession.addUser(new User("john"));
  
  MinaTaskServer server = new MinaTaskServer( taskService );
  Thread thread = new Thread( server );
  thread.start();
 }
 
 private static void setupDataSource(){
  PoolingDataSource ds = new PoolingDataSource();
  ds.setUniqueName("jdbc/jbpm-ds");
  ds.setClassName(com.mysql.jdbc.jdbc2.optional.MysqlXADataSource.class
    .getName());
  ds.setMaxPoolSize(3);
  ds.setAllowLocalTransactions(true);
  ds.getDriverProperties().put("user", "jbossjbpm");
  ds.getDriverProperties().put("password", "jbossjbpm");
  ds.getDriverProperties().put("URL", "jdbc:mysql://localhost:3306/jbpm");
  // ds.getDriverProperties().put("driverClassName",
  // "com.mysql.jdbc.Driver");
  ds.init();
 }
}
 

When i run these two classes,and threw the exception:

1    15/07 09:30:33,936[main] ERROR workitem.wsht.GenericHTWorkItemHandler.executeWorkItem  - Mon Jul 15 09:30:33 CST 2013: Error when creating task on task server for work item id 7. Error reported by task server: Command AddTaskRequest faild due to Could not commit transaction. Please contact task server administrator.
java.lang.RuntimeException: Command AddTaskRequest faild due to Could not commit transaction. Please contact task server administrator.
 at org.jbpm.task.service.TaskServerHandler.messageReceived(TaskServerHandler.java:729)
 at org.jbpm.task.service.mina.MinaTaskServerHandler.messageReceived(MinaTaskServerHandler.java:41)
 at org.apache.mina.core.filterchain.DefaultIoFilterChain$TailFilter.messageReceived(DefaultIoFilterChain.java:716)
 at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:434)
 at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:46)
 at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:796)
 at org.apache.mina.filter.codec.ProtocolCodecFilter$ProtocolDecoderOutputImpl.flush(ProtocolCodecFilter.java:427)
 at org.apache.mina.filter.codec.ProtocolCodecFilter.messageReceived(ProtocolCodecFilter.java:245)
 at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:434)
 at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:46)
 at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:796)
 at org.apache.mina.filter.logging.LoggingFilter.messageReceived(LoggingFilter.java:177)
 at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:434)
 at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:46)
 at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:796)
 at org.apache.mina.core.filterchain.IoFilterAdapter.messageReceived(IoFilterAdapter.java:119)
 at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:434)
 at org.apache.mina.core.filterchain.DefaultIoFilterChain.fireMessageReceived(DefaultIoFilterChain.java:426)
 at org.apache.mina.core.polling.AbstractPollingIoProcessor.read(AbstractPollingIoProcessor.java:692)
 at org.apache.mina.core.polling.AbstractPollingIoProcessor.process(AbstractPollingIoProcessor.java:645)
 at org.apache.mina.core.polling.AbstractPollingIoProcessor.process(AbstractPollingIoProcessor.java:634)
 at org.apache.mina.core.polling.AbstractPollingIoProcessor.access$400(AbstractPollingIoProcessor.java:66)
 at org.apache.mina.core.polling.AbstractPollingIoProcessor$Processor.run(AbstractPollingIoProcessor.java:1078)
 at org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:64)
 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:662)
Process started ...7
 
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