Typecast error while lookup (J2EEworkmanager to commonJ workmanager)

Question

Hi,
I am using plain web application where i want to use commonJ workmanager to do same i have done following steps
1. Define work manager in weblogic.xml
<work-manager>
<name>LogWorkmanager</name>
<min-threads-constraint>
<count>5</count>
</min-threads-constraint>
</work-manager>
2. Define resource in web.xml file
<resource-ref>
<res-ref-name>LogWorkmanager</res-ref-name>
<res-type>commonj.work.WorkManager</res-type>
<res-auth>Container</res-auth>
<res-sharing-scope>Shareable</res-sharing-scope>
</resource-ref>
3. Use JNDI mapping to get workmanager as:
InitialContext ic = new InitialContext();
commonj.work.WorkManager wm = (commonj.work.WorkManager)ic.lookup("java:comp/env/LogWorkmanager");
Here at step 3 I am getting classcast exception as java.lang.ClassCastException: weblogic.work.j2ee.J2EEWorkManager.
Could you please guide me where I am making mistake as I have defined resource ref point to commonj.workmanager and used same name in lookup method still why i am getting J2EEWorkManager instead of commonJ workmanager.
Thanks,
Yuvraj

Answer 1

Can you run a little test. See if the following works:
In your web.xml
    <!-- default weblogic work manager -->
    <resource-ref>
        <res-ref-name>default</res-ref-name>
        <res-type>commonj.work.WorkManager</res-type>
        <res-auth>Container</res-auth>
        <res-sharing-scope>Shareable</res-sharing-scope>
    </resource-ref>In your code you can use something like:
import commonj.work.WorkManager;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
public class TestServlet extends HttpServlet {
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        getDefaultWorkManager();
    private WorkManager getDefaultWorkManager() {
        WorkManager defaultWorkManager = null;
        try {
            Context context = new InitialContext();
            defaultWorkManager = (WorkManager) context.lookup("java:comp/env/default");
            System.out.println("My default workmanager " + defaultWorkManager);
        } catch (NamingException e) {
            e.printStackTrace();
        return defaultWorkManager;
}