java.lang.NullPointerException

[mthoresen]

I have an BMP Entity Bean. Very simple. Remote works fine. But when I try to implement the local interface I get the following exception.


java.lang.NullPointerException
at org.jboss.ejb.plugins.local.LocalHomeProxy.invoke(LocalHomeProxy.java:110)
at $Proxy0.findByPrimaryKey(Unknown Source)
at counterparty.clients.localEntityBean.main(localEntityBean.java:31)
Exception in thread "main" Process terminated with exit code 1

the code for the client is basically this:

public static void main(String[] args)
{
Properties env = new Properties( );
env.put(Context.PROVIDER_URL, "localhost:1098");
env.put(Context.URL_PKG_PREFIXES, "org.jboss.naming:org.jnp.interfaces");
env.put(Context.INITIAL_CONTEXT_FACTORY,"org.jnp.interfaces.NamingContextFactory");
InitialContext ic = null;
LocalCounterpartyEntity rec;
CptyPK key = new CptyPK("PHIBRO INC.", "PHIBRO");
try {
ic = new InitialContext(env);
LocalCounterpartyEntityHome localHome = (LocalCounterpartyEntityHome)ic.lookup("local/CounterpartyEntityEJB");
rec = localHome.findByPrimaryKey(key);


it craps out at the findByPrimaryKey.

can anyone explain this to me and why it does not work? Help is much appreciated. (JNDI PORT is set to 1098)

thanks.

[juhalindfors]

You can't use local interface from a remote client...

-- Juha

[mthoresen]

it is a local client though, running on same machine as JBOSS. could anyone give me an example of a local client that calls a local Entity Bean? Thanks

[juhalindfors]

That's not enough, it needs to be within the same PROCESS to be able to use local interfaces (there is no other way pass by reference semantics are going to work, you need to be inside the same JVM).

-- Juha

[mthoresen]

Oh. OK. Thank you for you explanation and help. Much appreciated. Just out of curriosity, is this for all EJBs, or just entity beans?

[juhalindfors]

This applies to all local interfaces for all EJBs. You need to have one remote interface somewhere in order to connect (usually a session facade).

-- Juha