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From atul12345 <atul.i...@gmail.com>
Subject Re: how to run Ejb program on geronimo
Date Mon, 07 Apr 2008 06:41:56 GMT

c

djencks wrote:
> 
> We seem to be going around in circles.  I don't believe the exception  
> you show is consistent with the client code you show.  Please show  
> the ENTIRE stack trace for this exception and include the exact  
> source code as a file so I can see the line numbers from the client  
> code matching up with the stack trace.  I cannot investigate further  
> without some definite correspondence that I can see clearly between  
> the pieces of information you supply.
> 
> thanks
> david jencks
> 
> On Apr 3, 2008, at 9:51 PM, atul12345 wrote:
> 
>>
>>
>>
>> Dear sir,
>>
>>                I am sure, when i running the client code, got that
>> Exception. I have already mentioned all exception which throw  
>> during the
>> execution of client program.
>>        if u want again so that is....
>> please sir provide me write solution to resolve this problem becoz  
>> i have
>> already spent two to three days resolve it problem.
>>
>> java.lang.ClassCastException
>>         at
>> com.sun.corba.se.impl.javax.rmi.PortableRemoteObject.narrow(PortableR
>>         at
>> javax.rmi.PortableRemoteObject.narrow(PortableRemoteObject.java:137)
>>         at HelloWorld.main(HelloWorld.java:31)
>> Caused by: java.lang.ClassCastException: $Proxy0 cannot be cast to
>> org.omg.CORBA
>>         at
>> com.sun.corba.se.impl.javax.rmi.PortableRemoteObject.narrow(PortableR
>>         ... 2 more
>>
>> Could anyone tell me what I’m doing wrong? Thanks a lot. Looking  
>> forward to
>> hearing from you.
>>
>>
>> djencks wrote:
>>>
>>> Are you sure you are running the client code you show?  The error
>>> indicates you are using PortableRemoteObject.narrow() rather than the
>>> simple cast in the client code you showed earlier.
>>>
>>> Is the CCE happening on the client?
>>>
>>> I'm unable to see how the exception you show can be coming from the
>>> code you show.  More of the exception stack trace might possibly be
>>> helpful.
>>>
>>> david jencks
>>>
>>>
>>> On Apr 2, 2008, at 10:05 PM, atul12345 wrote:
>>>
>>>>
>>>>
>>>>    Thanks for help but this is not problem that is when i run my
>>>> client
>>>> program that time i get error.......
>>>>            java.lang.ClassCastException: $Proxy0 cannot be cast to
>>>> My.DemoInter
>>>>
>>>> Actually sir i have already mentioned  interfaces,bean class and my
>>>> client
>>>> and xml. so please check that code and tell me what i am doing  
>>>> wrong.
>>>> Actually sir i had spent already three days to run one simple ejb
>>>> program i
>>>> think geronimo server is not good for ejb.
>>>>
>>>>
>>>> please help me  to give suitable response..........
>>>>
>>>>
>>>> vhnguy2 wrote:
>>>>>
>>>>> Hi Atul,
>>>>>
>>>>> It looks like you're doing a remote lookup. I think your client  
>>>>> code
>>>>> should look something similar to
>>>>>
>>>>> My.DemoInter remoteObj =(My.DemoInter)ctx.lookup(<jndi for remote
>>>>> interface>);
>>>>>
>>>>> Let me know if this works.
>>>>>
>>>>> Thanks,
>>>>> Viet
>>>>>
>>>>>
>>>>> On Wed, Apr 2, 2008 at 4:12 AM, atul12345 <atul.iims@gmail.com>
>>>>> wrote:
>>>>>>
>>>>>>
>>>>>>
>>>>>>  atul12345 wrote:
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> Hi Sir,
>>>>>>>          Thanks for help. I appreciate your attention. See ya!
>>>>>>>       This is my ejb-jar.xml file here i do have  all the classes
>>>>>> means
>>>>>>> interface name.
>>>>>>>
>>>>>>> <ejb-jar id="ejb-jar_1" xmlns="http://java.sun.com/xml/ns/j2ee"
>>>>>>>        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
>>>>>>>        xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
>>>>>>>        http://java.sun.com/xml/ns/j2ee/ejb-jar_2_1.xsd"
>>>>>>> version="2.1">
>>>>>>>       <description>Example of a session bean</description>
>>>>>>>       <display-name>MyTimeBeanEJBName</display-name>
>>>>>>>       <enterprise-beans>
>>>>>>>               <session id="Session_MyTime">
>>>>>>>
>>>>>>>                       <ejb-name>My.DemoEJB</ejb-name>
>>>>>>>                       <home>My.DemoHome</home>
>>>>>>>                       <remote>My.DemoInter</remote>
>>>>>>>                       <ejb-class>My.DemoBean</ejb-class>
>>>>>>>
>>>>>>>                       <session-type>Stateful</session-type>
>>>>>>>                       <transaction-type>Container</transaction-
>>>>>>> type>
>>>>>>>               </session>
>>>>>>>       </enterprise-beans>
>>>>>>> </ejb-jar>
>>>>>>>
>>>>>>> When I try to execute my client , I receive this error message:
>>>>>>> java.lang.ClassCastException.
>>>>>>>
>>>>>>> java.lang.ClassCastException
>>>>>>>         at
>>>>>>> com.sun.corba.se.impl.javax.rmi.PortableRemoteObject.narrow
>>>>>>> (PortableR
>>>>>>>         at
>>>>>>> javax.rmi.PortableRemoteObject.narrow(PortableRemoteObject.java:
>>>>>>> 137)
>>>>>>>         at HelloWorld.main(HelloWorld.java:31)
>>>>>>> Caused by: java.lang.ClassCastException: $Proxy0 cannot be  
>>>>>>> cast to
>>>>>>> org.omg.CORBA
>>>>>>>         at
>>>>>>> com.sun.corba.se.impl.javax.rmi.PortableRemoteObject.narrow
>>>>>>> (PortableR
>>>>>>>         ... 2 more
>>>>>>
>>>>>>
>>>>>>>
>>>>>>> Could anyone tell me what I'm doing wrong? Thanks a lot. Looking
>>>>>> forward
>>>>>>> to hearing from you.
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> manucet wrote:
>>>>>>>>
>>>>>>>> Hi Atul,
>>>>>>>>             I am not sure but did you specify the home and
 
>>>>>>>> remote
>>>>>>>> interfaces in the ejb-jar.xml file? If yes it will be helpful
>>>>>>>> if you
>>>>>>>> can provide a test case.
>>>>>>>>
>>>>>>>> Regards
>>>>>>>> Manu
>>>>>>>>
>>>>>>>> On Tue, Apr 1, 2008 at 4:33 PM, atul12345 <atul.iims@gmail.com>
>>>>>> wrote:
>>>>>>>>>
>>>>>>>>>  Actually after resolved jndi name problem i get one
new error
>>>>>>>>> that
>>>>>> is
>>>>>>>>>
>>>>>>>>>  java.lang.ClassCastException: $Proxy0 cannot be cast
to
>>>>>>>>> My.DemoHome
>>>>>>>>>   if anyone have any idea what is this so please give
 me
>>>>>>>>> suitable
>>>>>>>>> soluation
>>>>>>>>>  to resolve that problem.........
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>  atul12345 wrote:
>>>>>>>>>>
>>>>>>>>>>  Dear Sir,
>>>>>>>>>>
>>>>>>>>>>               I am new programmer to Geronimo and
EJB which  
>>>>>>>>>> are
>>>>>>>>> running on
>>>>>>>>>> gentoo. i am createing stateful session bean like
that........
>>>>>>>>>> This is remote Interface..........
>>>>>>>>>> package My;
>>>>>>>>>>
>>>>>>>>>> import java.rmi.*;
>>>>>>>>>>
>>>>>>>>>> import javax.ejb.*;
>>>>>>>>>>
>>>>>>>>>> public interface DemoInter extends EJBObject
>>>>>>>>>> {
>>>>>>>>>>            public int add(int a,int b) throws RemoteException;
>>>>>>>>>> }
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> This is Home Interface..........
>>>>>>>>>> package My;
>>>>>>>>>>
>>>>>>>>>> import javax.ejb.*;
>>>>>>>>>> import java.rmi.*;
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> public interface DemoHome extends EJBHome
>>>>>>>>>> {
>>>>>>>>>> public DemoInter create() throws
>>>>>>>>>> CreateException,RemoteException;
>>>>>>>>>> }
>>>>>>>>>>
>>>>>>>>>> This is Bean class............
>>>>>>>>>>
>>>>>>>>>> package My;
>>>>>>>>>>
>>>>>>>>>> import java.rmi.*;
>>>>>>>>>>
>>>>>>>>>> import javax.ejb.*;
>>>>>>>>>>
>>>>>>>>>> public class DemoBean implements SessionBean
>>>>>>>>>> {
>>>>>>>>>>          public DemoBean() {
>>>>>>>>>>                 // TODO Auto-generated constructor
stub
>>>>>>>>>>                            }
>>>>>>>>>>         public void ejbCreate()
>>>>>>>>>>         {
>>>>>>>>>>            System.out.println("ejbCreate()");
>>>>>>>>>>         }
>>>>>>>>>>
>>>>>>>>>>         public void ejbRemove()
>>>>>>>>>>         {
>>>>>>>>>>            System.out.println("ejbRemove()");
>>>>>>>>>>         }
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> public void ejbActivate()
>>>>>>>>>> {
>>>>>>>>>>    System.out.println("ejbActivate()");
>>>>>>>>>> }
>>>>>>>>>>
>>>>>>>>>> public void ejbPassivate()
>>>>>>>>>> {
>>>>>>>>>>    System.out.println("ejbPassivate()");
>>>>>>>>>> }
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> public void setSessionContext(SessionContext ctx){}
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> public int add(int a,int b) throws RemoteException
>>>>>>>>>> {
>>>>>>>>>> return (a+b);
>>>>>>>>>> }
>>>>>>>>>>
>>>>>>>>>> }
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> open-ejb.xml is where i specified the jndi name
>>>>>>>>>>
>>>>>>>>>> <openejb-jar
>>>>>> xmlns="http://www.openejb.org/xml/ns/openejb-jar-2.1"
>>>>>>>>>>
>>>>>>>>> xmlns:naming="http://geronimo.apache.org/xml/ns/naming-1.1"
>>>>>>>>>>
>>>>>>>>>> xmlns:security="http://geronimo.apache.org/xml/ns/

>>>>>>>>>> security-1.1"
>>>>>>>>>>   xmlns:sys="http://geronimo.apache.org/xml/ns/ 
>>>>>>>>>> deployment-1.1">
>>>>>>>>>>
>>>>>>>>>>   <enterprise-beans>
>>>>>>>>>>     <session>
>>>>>>>>>>             <ejb-name>Demo</ejb-name>
>>>>>>>>>>
>>>>>> <jndi-name>org.geronimo.ejbsample.HomeBean</jndi-name>
>>>>>>>>>>     </session>
>>>>>>>>>>   </enterprise-beans>
>>>>>>>>>> </openejb-jar>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>  and this is my client code...........
>>>>>>>>>>
>>>>>>>>>> import java.util.*;
>>>>>>>>>> import javax.naming.*;
>>>>>>>>>> import javax.rmi.*;
>>>>>>>>>> import My.*;
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> public class Client {
>>>>>>>>>>
>>>>>>>>>>         /**
>>>>>>>>>>          * @param args
>>>>>>>>>>          */
>>>>>>>>>>         public static void main(String[] args) {
>>>>>>>>>>                 // TODO Auto-generated method stub
>>>>>>>>>>                 try {
>>>>>>>>>>
>>>>>>>>>>                         Properties properties=new
Properties 
>>>>>>>>>> ();
>>>>>>>>>>
>>>>>> properties.setProperty(Context.INITIAL_CONTEXT_FACTORY,
>>>>>>>>>> "org.apache.openejb.client.RemoteInitialContextFactory");
>>>>>>>>>>
>>>>>>>>>>
>>>>>> properties.setProperty(Context.PROVIDER_URL,
>>>>>>>>>> "ejbd://localhost:4201" );
>>>>>>>>>>
>>>>>>>>>>             Context ctx=new InitialContext(properties);
>>>>>>>>>>
>>>>>>>>>>                  My.DemoHome
>>>>>>>>>>
>>>>>> home=(My.DemoHome)ctx.lookup
>>>>>> ("java:org.geronimo.ejbsample.HomeBean");
>>>>>>>>>>
>>>>>>>>>>   My.DemoInter object =home.create();
>>>>>>>>>>   System.out.println(object.add(12,22));
>>>>>>>>>>
>>>>>>>>>> that is my code, everything is ok means deploy successfully
 
>>>>>>>>>> but
>>>>>>>>> problem is
>>>>>>>>>> when i execute client program, that time i get error
that is
>>>>>>>>>>
>>>>>>>>>> javax.naming.NameNotFoundException:
>>>>>> org.geronimo.ejbsample.HomeBean
>>>>>>>>> does
>>>>>>>>>> not exist in the system.  Check that the app was
successfully
>>>>>>>>> deployed.
>>>>>>>>>> So if anybody know how to resolve this problem then
please  
>>>>>>>>>> give
>>>>>> me
>>>>>>>>>> suitable suggestion to resolve this problem..
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>
>>>>>>>>>  --
>>>>>>>>>  View this message in context:
>>>>>>>>>
>>>>>> http://www.nabble.com/how-to-run--Ejb-program-on-geronimo-
>>>>>> tp16392851s134p16417878.html
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Sent from the Apache Geronimo - Users mailing list archive
at
>>>>>>>>> Nabble.com.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>
>>>>>>  --
>>>>>>  View this message in context:
>>>>>> http://www.nabble.com/how-to-run--Ejb-program-on-geronimo-
>>>>>> tp16392851s134p16444488.html
>>>>>>
>>>>>>
>>>>>> Sent from the Apache Geronimo - Users mailing list archive at
>>>>>> Nabble.com.
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>
>>>> -- 
>>>> View this message in context: http://www.nabble.com/how-to-run--Ejb-
>>>> program-on-geronimo-tp16392851s134p16465788.html
>>>> Sent from the Apache Geronimo - Users mailing list archive at
>>>> Nabble.com.
>>>>
>>>
>>>
>>>
>>
>> -- 
>> View this message in context: http://www.nabble.com/how-to-run--Ejb- 
>> program-on-geronimo-tp16392851s134p16482909.html
>> Sent from the Apache Geronimo - Users mailing list archive at  
>> Nabble.com.
>>
> 
> 
> 

-- 
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