Why do I get a ClassCastException?

Hello!
I'm playing around with hibernate, axis2 and Weblogic 8.1.6 and I got I really tricky problem.
My Weblogic 8.1.6 got consist of 3 servers.
1 Adminserver (myserver)
1 Managedserver (ejbserver)
1 Managedserver (webserviceserver)
My play_around_example is built around a database called names in a mysql-databas.
To access data I got a package called nameshibernate.jar, that works fine used from an standalone application called namesjavaapplication.jar.
(namesjavaapplication->nameshibernate->database)
I also got an ejb in a packaged called namesejb.jar that uses the nameshibernate.jar. The namesejb.jar is deployed under "Ejb Modules" and the target is "ejbserver". If I call the ejb from my standalone application called namesjavaapplication.jar it works fine.
(namesjavaapplication->namesejb->nameshibernate->database)
I also got an webserviceapplication that uses axis2 in a aar-file called nameswebservice.aar. This application uses the namesejb.jar. The Axis2-server is deployed in the server under "Web Application Modules" and the target is "webserviceserver". In this Axis2-server the nameswebservice.aar is deployed. This i supposed to work like:
(namesjavaapplication->nameswebservice->namesejb->nameshibernate->database)
If I call the webservice from my standalone application called namesjavaapplication.jar I get a calsscast exception:
java.lang.ClassCastException: Cannot narrow remote object to namesejb.client.NameManagerEJBHome
I really can not find out the problem since it works fine if I go directly to the ejb like:
(namesjavaapplication->namesejb->nameshibernate->database)
Below is the method inside my standalone application that calls the ejb directly.
This is the code that works:
(namesjavaapplication->namesejb->nameshibernate->database)
     public void getNamesEJB() throws Exception
          try
               System.out.println("getNamesEJB start");
               Context context = getWebLogicInitialContext();
               Object object = context.lookup("namesejb/client/NameManagerEJBHome");
               System.out.println("\t1: " + object.getClass().getName());
               Class c = Class.forName("namesejb.client.NameManagerEJBHome");
               System.out.println("\t2: " + c.getName());
               System.out.println("\t3: " + NameManagerEJBHome.class.getName());
               System.out.println("\t4: " + (object instanceof NameManagerEJBHome));
               System.out.println("\tjava.class.version: " + System.getProperty("java.class.version"));
               System.out.println("\tjava.class.path: " + System.getProperty("java.class.path"));
               System.out.println("\tjava.library.path: " + System.getProperty("java.library.path"));
               System.out.println("\tjava.compiler: " + System.getProperty("java.compiler"));
               System.out.println("\tjava.ext.dirs: " + System.getProperty("java.ext.dirs"));
               System.out.println("\tuser.dir: " + System.getProperty("user.dir"));
               System.out.println("\tjava.home: " + System.getProperty("java.home"));
               if(object instanceof namesejb.server.NameManagerSessionBean)
                    System.out.println("\t"+ ((namesejb.server.NameManagerSessionBean)object).getSerialVersionUID() );
               else
                    System.out.println("\tNOT instanceof NameManagerSessionBean");
               NameManagerEJBHome nameManagerEJBHome = (NameManagerEJBHome)PortableRemoteObject.narrow(object, NameManagerEJBHome.class);
               NameManangerEJBObject nameManangerEJBObject = nameManagerEJBHome.create();
     String nameString = "";
               List names = nameManangerEJBObject.getNames();
     for (int i = 0; i < names.size(); i++)
     Name theName = (Name) names.get(i);
     nameString = nameString + "\n" + theName.getName();
     textAreaEJB.setText(nameString);
          catch(RemoteException e)
               e.printStackTrace();
          catch(NamingException e)
               e.printStackTrace();
          catch(Exception e)
               e.printStackTrace();
From this I get this output:
getNamesEJB start
1: namesejb.server.NameManagerSessionBean_o0oo54_HomeImpl_816_WLStub
2: namesejb.client.NameManagerEJBHome
3: namesejb.client.NameManagerEJBHome
4: true
java.class.version: 50.0
java.class.path: namesjavaapplication.jar
java.library.path: /home/fredrik/Applications/Java/Java_ee_sdk_5-04/jd k/jre/lib/i386/server:/home/fredrik/Applications/Java/Java_ee_sdk_5-04 /jdk/jre/lib/i386:/home/fredrik/Applications/Java/Java_ee_sdk_5-04/jdk /jre/../lib/i386:/usr/java/packages/lib/i386:/lib:/usr/lib
java.compiler: null
java.ext.dirs: /home/fredrik/Applications/Java/Java_ee_sdk_5-04/jdk/jr e/lib/ext:/usr/java/packages/lib/ext
user.dir: /home/fredrik/eclipse_workspace/namesjavaapplication
java.home: /home/fredrik/Applications/Java/Java_ee_sdk_5-04/jdk/jre
NOT instanceof NameManagerSessionBean
Below is my methods inside the ejb:
     public void ejbCreate()
          try
               Class c = Class.forName("namesejb.client.NameManagerEJBHome");
               System.out.println("1: " + c.getName());
               System.out.println("2: " + NameManagerEJBHome.class.getName());
               System.out.println("java.class.version: " + System.getProperty("java.class.version"));
               System.out.println("java.class.path: " + System.getProperty("java.class.path"));
               System.out.println("java.library.path: " + System.getProperty("java.library.path"));
               System.out.println("java.compiler: " + System.getProperty("java.compiler"));
               System.out.println("java.ext.dirs: " + System.getProperty("java.ext.dirs"));
               System.out.println("user.dir: " + System.getProperty("user.dir"));
          catch(Exception e)
               System.out.println(e.getMessage());
               e.printStackTrace();
     public ArrayList getNames() throws Exception {
          Class c = Class.forName("namesejb.client.NameManagerEJBHome");
          System.out.println("4 " + c.getName());
          NameManager nameManager = new NameManager();
          return nameManager.getNames();
From these methods I get this output from the ejbserver:
1: namesejb.client.NameManagerEJBHome
2: namesejb.client.NameManagerEJBHome
java.class.version: 48.0
java.class.path:/home/fredrik/Applications/bea/jrockit81sp6_142_10/lib/tools.jar:/home/fredrik/Applications/bea/weblogic81/server/lib/weblogic_sp.jar:/home/fredrik/Applications/bea/weblogic81/server/lib/weblogic.jar::/home/fredrik/Applications/bea/weblogic81/common/eval/pointbase/lib/pbserver44.jar:/home/fredrik/Applications/bea/weblogic81/common/eval/pointbase/lib/pbclient44.jar:/home/fredrik/Applications/bea/jrockit81sp6_142_10/jre/lib/rt.jar:/home/fredrik/Applications/bea/weblogic81/server/lib/webservices.jr:
java.library.path:/home/fredrik/Applications/bea/jrockit81sp6_142_10/jre/lib/i386/jrockit:/home/fredrik/Applications/bea/jrockit81sp6_142_10/jre/lib/i386:/home/fredrik/Applications/bea/jrockit81sp6_142_10/jre/../lib/i386:/home/fredrik/Applications/bea/weblogic81/server/lib/linux/i686:/home/fredrik/Applications/bea/weblogic81/server/lib/linux/i686/oci920_8
java.compiler: null
java.ext.dirs: /home/fredrik/Applications/bea/jrockit81sp6_142_10/jre/lib/ext
user.dir: /home/fredrik/Applications/bea/user_projects/domains/mydomain
4 namesejb.client.NameManagerEJBHome
THIS WORKS FINE
Below is the method inside my webservice that calls the ejb directly.
This is the code that throws the Exception:
(namesjavaapplication->nameswebservice->namesejb->nameshibernate->database)
     public String getNamesWSEJB() throws Exception
          String errorMessage = "Error: ";
          try
               System.out.println("getNamesWSEJB start");
               Context context = getWebLogicInitialContext();
               Object object = context.lookup("namesejb/client/NameManagerEJBHome");
               System.out.println("\t1: " + object.getClass().getName());
               Class c = Class.forName("namesejb.client.NameManagerEJBHome");
               System.out.println("\t2: " + c.getName());
               System.out.println("\t3: " + NameManagerEJBHome.class.getName());
               System.out.println("\t4: " + (object instanceof NameManagerEJBHome));
               System.out.println("\tjava.class.version: " + System.getProperty("java.class.version"));
               System.out.println("\tjava.class.path: " + System.getProperty("java.class.path"));
               System.out.println("\tjava.library.path: " + System.getProperty("java.library.path"));
               System.out.println("\tjava.compiler: " + System.getProperty("java.compiler"));
               System.out.println("\tjava.ext.dirs: " + System.getProperty("java.ext.dirs"));
               System.out.println("\tuser.dir: " + System.getProperty("user.dir"));
               System.out.println("java.home: " + System.getProperty("java.home"));
               if(object instanceof namesejb.server.NameManagerSessionBean)
                    System.out.println("\t"+ ((namesejb.server.NameManagerSessionBean)object).getSerialVersionUID() );
               else
                    System.out.println("\tNOT instanceof NameManagerSessionBean");
               NameManagerEJBHome nameManagerEJBHome = (NameManagerEJBHome)PortableRemoteObject.narrow(object, NameManagerEJBHome.class);
               NameManangerEJBObject nameManangerEJBObject = nameManagerEJBHome.create();
     String nameString = "";
               List names = nameManangerEJBObject.getNames();
               for (int i = 0; i < names.size(); i++)
                    Name theName = (Name) names.get(i);
                    nameString = nameString + "\n" + theName.getName();
               return nameString;
          catch(RemoteException e)
               errorMessage = errorMessage + e.getMessage();
               e.printStackTrace();
          catch(NamingException e)
               errorMessage = errorMessage + e.getMessage();
               e.printStackTrace();
          catch(Exception e)
               errorMessage = errorMessage + e.getMessage();
               e.printStackTrace();
          return errorMessage;
1: namesejb.server.NameManagerSessionBean_o0oo54_HomeImpl_816_WLStub
2: namesejb.client.NameManagerEJBHome
3: namesejb.client.NameManagerEJBHome
4: false
java.class.version: 48.0
java.class.path:/home/fredrik/Applications/axis2-1.3/lib/jalopy-1.5rc3.jar:/home/fredrik/Applications/bea/jrockit81sp6_142_10/lib/tools.jar:/home/fredrik/Applications/bea/weblogic81/server/lib/weblogic_sp.jar:/home/fredrik/Applications/bea/weblogic81/server/lib/weblogic.jar::/home/fredrik/Applications/bea/weblogic81/common/eval/pointbase/lib/pbserver44.jar:/home/fredrik/Applications/bea/weblogic81/common/eval/pointbase/lib/pbclient44.jar:/home/fredrik/Applications/bea/jrockit81sp6_142_10/jre/lib/rt.jar:/home/fredrik/Applications/bea/weblogic81/server/lib/webservices.jar:
java.library.path: /home/fredrik/Applications/bea/jrockit81sp6_142_10/jre/lib/i386/jrockit:/home/fredrik/Applications/bea/jrockit81sp6_142_10/jre/lib/i386:/home/fredrik/Applications/bea/jrockit81sp6_142_10/jre/../lib/i386:/home/fredrik/Applications/bea/weblogic81/server/lib/linux/i686:/home/fredrik/Applications/bea/weblogic81/server/lib/linux/i686/oci920_8
java.compiler: null
java.ext.dirs: /home/fredrik/Applications/bea/jrockit81sp6_142_10/jre/lib/ext
user.dir: /home/fredrik/Applications/bea/user_projects/domains/mydomain
     NOT instanceof NameManagerSessionBean
java.lang.ClassCastException: Cannot narrow remote object to namesejb.client.NameManagerEJBHome
at weblogic.iiop.PortableRemoteObjectDelegateImpl.narrow(PortableRemoteObjectDelegateImpl.java:242)
at javax.rmi.PortableRemoteObject.narrow(PortableRemoteObject.java:134)
at nameswebservices.NamesWebService.getNamesWSEJB(NamesWebService.java:49)
at jrockit.reflect.VirtualNativeMethodInvoker.invoke(Ljava.lang.Object;[Ljava.lang.Object;)Ljava.lang.Object;(Unknown Source)
        at java.lang.reflect.Method.invoke(Ljava.lang.Object;[Ljava.lang.Object;I)Ljava.lang.Object;(Unknown Source)
        at org.apache.axis2.rpc.receivers.RPCUtil.invokeServiceClass(RPCUtil.java:165)
        at org.apache.axis2.rpc.receivers.RPCMessageReceiver.invokeBusinessLogic(RPCMessageReceiver.java:98)
        at org.apache.axis2.receivers.AbstractInOutMessageReceiver.invokeBusinessLogic(AbstractInOutMessageReceiver.java:40)
        at org.apache.axis2.receivers.AbstractMessageReceiver.receive(AbstractMessageReceiver.java:96)
        at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:145)
        at org.apache.axis2.transport.http.HTTPTransportUtils.processHTTPPostRequest(HTTPTransportUtils.java:275)
        at org.apache.axis2.transport.http.AxisServlet.doPost(AxisServlet.java:120)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
        at weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run(ServletStubImpl.java:1077)
        at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:465)
        at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:348)
        at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:7047)
        at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
        at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121)
        at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:3902)
        at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2773)
        at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:224)
        at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:183)
I really can not find out what might be the problem since it works to call tje ejb from a standalone application.
The "same" code executed from a webservice throws the exception.
One strange thing that I notice is that from the standalone the java.class.version gets 50.0 and from the webserver it gets 48.0 But the standalone uses 1.6 when I run it and the Weblogic uses 1.4. (I do not think that weblogic can run with 1.6)
Pretty long thread but I hope for some mercy!
Best regards
Fredrik

Hello Thok, this code is from a quistion in a studybook for preparation of the SCJP 5.0 exam.
When i compile i get this warning:
Shapes.java:13: warning: [unchecked] unchecked cast
found   : java.util.ArrayList
required: java.util.ArrayList<generics.Rectangle>
        ArrayList <Rectangle> c = (ArrayList<Rectangle>) b;
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1 warningWhen running this line causes an exception:
            for ( Rectangle o : c){My questions are
How do i re-write the code so that i will get an warning and exception free program?
Tnx Auke

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Thanks

Those are standard mail headers, but they are normally hidden. Shift-command-H should turn them off or on for the current message. I don't know how that setting got stuck on for you, though.

HT3228 Please let me know how to avoid receiving the spam into my email accounts on the iPad. It is very annoying! My server puts it in the spam folder...why do I get it on the iPad? Is it avoidable and how?

Please let me know how to avoid receiving the spam (from the spam folder on the server) into my email accounts on the iPad. It is very annoying!
My server puts it in a spam folder and I do not receive it in the Ms Outlook on my desk computer...why do I get it on the iPad? Is it avoidable and how?b

You actually cannot do anything to your ipad when its locked but look at pictures the time and date, you need to restore it, and if it dosent let you restore, good luck chuck Heres how to restore it: Okay, i only know the itunes way soz, lol. Try to connect your ipad to itunes, if it does let you then you should be able to select the device you have in the corner somewhere, once you do that you should see a screen that looks sort of like your ipads setting, you should have a button that says "Restore" click that and your ipad should be restored. If that dosent work you should try going to your regular office depot or something. Good Luck!

Why do I get the movies only in english?

As a new Apple TV user this might be a stupid question for pros on Apple TV. Nevertheless, why do I get the movies which I wanted to receive in the German version only in the English version. I make my choice in the German iTunes-Store, I watch the trailers in German, but when I order the movie, I get it only in English. Am I stupid or what?
Thanks for your help.
Hartwin

Hartwin, that's odd. Does this happen with every movie you've rented?
And do you perhaps have a US iTunes account that you're using to order from?
Other than that, I really can't think of an answer.

Why do I get a ClassCastException?

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