Getting NameNotFoundException while trying to look up timer from startup cl

Question

Hi all,
I am getting NameNotFoundException while trying to look up timer from startup class.
I have configured commonj.timers.TimerManager in ejb-jar.xml of my MDB. I am using statrtup classes to initialize some static components immidiate to the MDB's active state. I have to initialize the timer manager object immidiate to the MDB's active state which is configured in ejb-jar.xml. I wrote this lookup logic in postStart() method of ApplicationLifecycleListener, The method getting called but the lookup logic getting failed, the same look up logic is working in MDB class (MDBTimer.java). I have tried different ways, I did’nt get solution, finally I am posting the problem here.
Could any of weblogic experts please help out on this Issue?
Here I am giving my code.
weblogic-application.xml
<?xml version='1.0' encoding='UTF-8'?>
<weblogic-application
     xmlns="http://www.bea.com/ns/weblogic/weblogic-application" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://www.bea.com/ns/weblogic/weblogic-application http://www.bea.com/ns/weblogic/weblogic-application/1.0/weblogic-application.xsd">
     <listener>
          <listener-class>my.examples.mdb.timer.TestApplicationListener</listener-class>
     </listener>     
</weblogic-application>
ejb-jar.xml
          <ejb-jar xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
               xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
          http://java.sun.com/xml/ns/j2ee/ejb-jar_3_0.xsd"
               version="3.0">
               <enterprise-beans>
                    <message-driven>
                         <ejb-name>MyTimerMDB</ejb-name>
                         <ejb-class>my.examples.mdb.timer.MDBTimer
                         </ejb-class>
                         <resource-ref>
                              <description>My Default Timer Manager</description>
                              <res-ref-name>timer/MyDefaultTimer</res-ref-name>
                              <res-type>commonj.timers.TimerManager</res-type>
                              <res-auth>Container</res-auth>
                              <res-sharing-scope>Unshareable</res-sharing-scope>
                         </resource-ref>
                    </message-driven>
               </enterprise-beans>
          </ejb-jar>
MDBTimer.java
package my.examples.mdb.timer;
import javax.ejb.MessageDriven;
import javax.ejb.TransactionAttribute;
import javax.ejb.TransactionAttributeType;
import javax.jms.Message;
import javax.jms.MessageListener;
import javax.jms.ObjectMessage;
import commonj.timers.Timer;
import commonj.timers.TimerManager;
@MessageDriven(mappedName = "TEST_Q", name = "MyTimerMDB", activationConfig = {
          @javax.ejb.ActivationConfigProperty(propertyName = "acknowledgeMode", propertyValue = "Auto-acknowledge"),
          @javax.ejb.ActivationConfigProperty(propertyName = "destinationType", propertyValue = "javax.jms.Queue"),
          @javax.ejb.ActivationConfigProperty(propertyName = "transactionType", propertyValue = "Container"), })
@TransactionAttribute(TransactionAttributeType.REQUIRED)
public class MDBTimer implements MessageListener {
     public static TimerManager manager = null;
     @Override
     public void onMessage(Message arg0) {
          System.out.println("onMessage() method called...\n\n");
          if (arg0 instanceof ObjectMessage) {
               ObjectMessage msg = (ObjectMessage) arg0;
               try {
                    if (msg.getObject() instanceof String) {
                         Thread.sleep(1000);
                         System.out
                                   .println("Message received >> " + msg.getObject());
               } catch (Exception e) {
                    e.printStackTrace();
          System.out.println("onMessage() method returned...\n\n");
          if(manager==null){
               manager=MyUtil.getTimerManager();
TestApplicationListener.java
package my.examples.mdb.timer;
import commonj.timers.TimerManager;
import weblogic.application.ApplicationException;
import weblogic.application.ApplicationLifecycleEvent;
import weblogic.application.ApplicationLifecycleListener;
public class TestApplicationListener extends ApplicationLifecycleListener {
     public void preStart(ApplicationLifecycleEvent evt)throws ApplicationException {
          String logStr = ">>>>TestApplicationListener.preStart()>>>>";
          System.out.println(logStr+"entered...");
          super.preStart(evt);
          System.out.println(logStr+"leveaing...");
     public void postStart(ApplicationLifecycleEvent evt)throws ApplicationException {
          String logStr = ">>>>TestApplicationListener.postStart()>>>>";
          System.out.println(logStr+"entered...");
          super.postStart(evt);
          TimerManager timerManager = MyUtil.getTimerManager();
          System.out.println(logStr+"Got timer manager ==> "+timerManager);
          System.out.println(logStr+"leveaing...");
     public void preStop(ApplicationLifecycleEvent evt)throws ApplicationException {
          String logStr = ">>>>TestApplicationListener.preStop()>>>>";
          System.out.println(logStr+"entered...");
          TimerManager timerManager = MyUtil.getTimerManager();
          System.out.println(logStr+"Got timer manager ==> "+timerManager);
          super.preStop(evt);
          System.out.println(logStr+"leveaing...");
     public void postStop(ApplicationLifecycleEvent evt) throws ApplicationException{
          String logStr = ">>>>TestApplicationListener.postStop()>>>>";
          System.out.println(logStr+"entered...");
          super.preStop(evt);
          System.out.println(logStr+"leveaing...");
MyUtil.java
package my.examples.mdb.timer;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import commonj.timers.TimerManager;
public class MyUtil {
     public static TimerManager getTimerManager() {
          TimerManager timerManager = null;
          try {
               InitialContext ctx = new InitialContext();
               timerManager = (TimerManager) ctx
                         .lookup("java:comp/env/timer/MyDefaultTimer");
               System.out
                         .println("@@@@@Looked-up using java:comp/env/timer/MyDefaultTimer : "
                                   + timerManager);
          } catch (NamingException e) {
               e.printStackTrace();
          return timerManager;
}

Answer 1

Thaks for your valuble information. I tried as you suggested!!! But NO luck . Still I am getting the issue.
I am using a class(TestApplicationListener) implements ApplicationLifecycleListener to listen my application.
I have overriden the methods preStart(), postStart(), preStop() and postStop().
Given following entries in weblogic-application.xml
<listener>
          <listener-class>my.examples.mdb.timer.TestApplicationListener</listener-class>
</listener>     
Also given
<ejb>
               <start-mdbs-with-application>false</start-mdbs-with-application>
</ejb>          As you suggested.
If I try to look-up timer manager from postStart() method of TestApplicationListener then it is giving NameNotFoundException
, same exception is giving in preStop() method.
If it is problem with initialization; I think, it should not give problem with preStop() method. (Correct me if I am wrong)
If I try to lookup the timer manager from onMessage() method of my MDB, It is not giving any problem.
I didn’t understand the reason why it is happening.
Note: All the life cycle methods (preStart(), postStart(), preStop() and postStop() ) are getting executed when I start/stop/redeploy my application from console.