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 <[EMAIL PROTECTED]>
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 <[EMAIL PROTECTED]>
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.
