java.rmi.UnmarshalExcept

[mashraff]

server: JBoss-2.4.0_Tomcat-3.2.3

code segment I am failing on
-----------------------------

Properties props = new Properties();

props.put(Context.INITIAL_CONTEXT_FACTORY,
"org.jnp.interfaces.NamingContextFactory");
props.put(Context.PROVIDER_URL, "localhost:1099");
props.put("java.naming.rmi.security.manager", "yes");
props.pu(Context.URL_PKG_PREFIXES, "org.jboss.naming");


// Get the initial context
Context jndi = new InitialContext(props);

//Look up a JMS connection factory.
TopicConnectionFactory conFactory =
(TopicConnectionFactory)jndi.lookup("TopicConnectionFactory");


I am getting the following error while trying to lookup a Topic
------------------------------------------------------


javax.naming.CommunicationException. Root exception is java.rmi.UnmarshalExcept
ion: error unmarshalling return; nested exception is:
java.lang.ClassNotFoundException: org.jbossmq.referenceable.ObjectRefAdd
r (no security manager: RMI class loader disabled)
java.lang.ClassNotFoundException: org.jbossmq.referenceable.ObjectRefAddr (no se
curity manager: RMI class loader disabled)
at sun.rmi.server.LoaderHandler.loadClass(Unknown Source)
at sun.rmi.server.LoaderHandler.loadClass(Unknown Source)
at sun.rmi.server.MarshalInputStream.resolveClass(Unknown Source)
at java.io.ObjectInputStream.inputClassDescriptor(Unknown Source)
at java.io.ObjectInputStream.readObject(Unknown Source)
at java.io.ObjectInputStream.readObject(Unknown Source)
at java.io.ObjectInputStream.inputObject(Unknown Source)
at java.io.ObjectInputStream.readObject(Unknown Source)
at java.io.ObjectInputStream.inputArray(Unknown Source)
at java.io.ObjectInputStream.readObject(Unknown Source)
at java.io.ObjectInputStream.inputClassFields(Unknown Source)
at java.io.ObjectInputStream.defaultReadObject(Unknown Source)
at java.io.ObjectInputStream.inputObject(Unknown Source)
at java.io.ObjectInputStream.readObject(Unknown Source)
at java.io.ObjectInputStream.inputClassFields(Unknown Source)
at java.io.ObjectInputStream.defaultReadObject(Unknown Source)
at java.io.ObjectInputStream.inputObject(Unknown Source)
at java.io.ObjectInputStream.readObject(Unknown Source)
at java.io.ObjectInputStream.readObject(Unknown Source)
at sun.rmi.server.UnicastRef.unmarshalValue(Unknown Source)
at sun.rmi.server.UnicastRef.invoke(Unknown Source)
at org.jnp.server.NamingServer_Stub.lookup(Unknown Source)
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:349)
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:333)
at javax.naming.InitialContext.lookup(Unknown Source)
at chap2.chat.Chat.(Chat.java:75)
at chap2.chat.Chat.main(Chat.java:166)

[scotticek]

I am new to this, so i could be wrong. But it looks like you have classpath issue. Find the jar file that contains the class org.jbossmq.referenceable.ObjectRefAddr
and add it to the class path.

[mlecza]

Make sure JBoss can find jbossmq.jar. Either add it to your classpath or locat the file in /lib/ext

[mashraff]

thx, your are right. it was a classpath problem. I had to add
jbossmq.jar , oswego-concurrent.jar, and jnp-client.jar to classpath to make this work.