javax.ejb.EJBException: Unable to lookup HandleDelegate

[juliaroberts]

Hi,

I have a problem when I call the getHandle() method on a remote interface of an EJB Object. My ejbs are deployed in JRun 4.0 app server. I am using JDK 1.3 version on both the client and the server. This is the code:-

public static void main(String[] args) {
try {

// setup parameter for getting the initial context
Hashtable h = new Hashtable();
h.put(Context.INITIAL_CONTEXT_FACTORY, "jrun.naming.JRunContextFactory"
h.put(Context.PROVIDER_URL, "localhost:2908"

// get the initial context
Context ctx = new InitialContext(h);

// Lookup the home interface of a specified bean.
HelloHome hb = (HelloHome)ctx.lookup("Test/Hello"

// print the home interface
System.out.println("Home Ojb = " + hb);

// get the remote interface
Hello hbRemote = (Hello)hb.create();

// print out the remote interface
System.out.println("Remote Interface = " + hbRemote);

// call invoke a method that just return "Hello, " + String that you passed in
// in this case "Hello, Good Day"
System.out.println("Remote call returns = " + hbRemote.addHello("Good Day&quot);

// now go get the handle for this remote interface
javax.ejb.Handle remoteH = hbRemote.getHandle();
System.out.println("Handles = " + remoteH);
} catch (Exception e) {
e.printStackTrace();
}
}
Output on console is following

C:\testbean\jruntest>java -cp jruntest.jar;jrun.jar testhello.TestHello
Home Ojb = helloejb.jar#hello.HelloBean
Remote Interface = helloejb.jar#hello.HelloBean
Remote call returns = Hello, Good Day
handle is = jrun.ejb.portable.HandleImpl@ec366a

javax.ejb.EJBException: Unable to lookup HandleDelegate
at jrun.ejb.portable.HandleImpl.readObject(HandleImpl.java:86)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at java.ibjectStreamClass.invokeReadObject(ObjectStreamClass.java:809)
at java.ibjectInputStream.readSerialData(ObjectInputStream.java:1733)
at java.ibjectInputStream.readOrdinaryObject(ObjectInputStream.java:1636)
at java.ibjectInputStream.readObject0(ObjectInputStream.java:1264)
at java.ibjectInputStream.readObject(ObjectInputStream.java:322)
at java.rmi.MarshalledObject.get(MarshalledObject.java:135)
at jrunx.rmi.Invocation.unmarshall(Invocation.java:404)
at jrunx.rmi.Invocation.getMethodResult(Invocation.java:237)
at jrunx.rmi.RemoteInvocationHandler.invoke(RemoteInvocationHandler.java:139)
at jrun.ejb.invocation.ClientInvocationHandlerImpl.invoke(ClientInvocationHandlerImpl.java:221)
at $Proxy2.getHandle(Unknown Source)
at testhello.TestHello.main(TestHello.java)
Handles = null


Can anyone please help?

 

[Suran]

I'm having the same problem using Sun's J2SDKEE as a server.
Did you find a way around it?

Suran AT gmx DOT net

 

[juliaroberts]

No solution in sight. I get this problem with IBM JDK as well as Sun JDK. Any help would be greatly apppreciated.

Thanks in advance

 

[Suran]

I have solved it for me. j2ee.jar was not in the classpath of the client.
Hope it helps.

Marcus

 

[juliaroberts]

Suran.
I tried your solution. I added j2ee.jar to teh classpath of the client.
Good news and Bad news.
Good news is that I am not getting the "unable to lookup HandleDelegate" exception. Now the exception is

java.lang.ClassCastException: $Proxy2
at com.sun.enterprise.iiop.IIOPHandleDelegate.getStub(IIOPHandleDelegate
.java:62)
at com.sun.enterprise.iiop.IIOPHandleDelegate.readEJBObject(IIOPHandleDe
legate.java:42)
at jrun.ejb.portable.HandleImpl.readObject(HandleImpl.java:89)
at java.lang.reflect.Method.invoke(Native Method)
at java.ibjectInputStream.invokeObjectReader(ObjectInputStream.java:2
219)
at java.ibjectInputStream.inputObject(ObjectInputStream.java:1416)
at java.ibjectInputStream.readObject(ObjectInputStream.java:392)
at java.ibjectInputStream.readObject(ObjectInputStream.java:242)
at java.rmi.MarshalledObject.get(MarshalledObject.java:144)
at jrunx.rmi.Invocation.unmarshall(Invocation.java:404)
at jrunx.rmi.Invocation.getMethodResult(Invocation.java:237)
at jrunx.rmi.RemoteInvocationHandler.invoke(RemoteInvocationHandler.java
:139)
at jrun.ejb.invocation.ClientInvocationHandlerImpl.invoke(ClientInvocati
onHandlerImpl.java:221)
at $Proxy2.getHandle(Unknown Source)
at george.ui.client.main(client.java:26)


Did you get a similar problem? Are there any other jars to set to the classpath?

Thanks in advance

 

[wushutwist]

Are you getting this error when you lookup your Home stub or when you try to create your Remote reference?

 

[juliaroberts]

I am able to lookup the home interface. From the home interface I am able to get the remote interface. The problem occurs when I call the getHandle() method of the remote interface. Initially it was "unable to lookup Handle Delegate"; this was solved after Suran told me to put j2ee.jar in my client classpath. I know get a classcastexception.