I don't know if it is the best solution but for catching exception I have added an interceptor in ejb3-interceptor.xml. This interceptor is set for remote session bean.

In my case, interceptor catch exception, logg it on server side and throw a new exception without all the chained exception but just the timestamp of the exceptiopn logged in server side (my problem was that sometimes excpetion chained was server side only exception - not in the classpath on the client).

See http://www.jboss.com/index.html?module=bb&op=viewtopic&t=97105

For me it looks like this:

package fr.toto.interceptor;

import java.lang.reflect.Method;
import java.lang.reflect.UndeclaredThrowableException;
import java.util.logging.Level;
import java.util.logging.Logger;

import org.jboss.aop.advice.Interceptor;
import org.jboss.aop.joinpoint.Invocation;
import org.jboss.aop.joinpoint.MethodInvocation;

/**
 * Interceptor in charge to log unexpected exception.
 *
 * @author jean-cedricwalmetz
 *
 */
public class ExceptionHanlderInterceptor implements Interceptor {
 /**
 * Version number
 */
 private final Logger LOGGER = Logger
 .getLogger(ExceptionHanlderInterceptor.class.getName());

 /**
 * Log unexpected exception and thows an UndeclaredThrowableException
 */
 public Object invoke(Invocation invocation) throws Throwable {
 try {
 return invocation.invokeNext();
 } catch (Throwable t) {
 MethodInvocation methodInvocation = (MethodInvocation) invocation;
 Method m = methodInvocation.getMethod();
 Class<?>[] exceptions = m.getExceptionTypes();
 // Exception is an EJBException.
 Class<?> clazz = (t.getCause() == null ? t.getClass() : t.getCause()
 .getClass());// /*.getCause()*/.getClass();
 for (Class<?> c : exceptions) {
 if (c.isAssignableFrom(clazz)) {
 throw t;
 }
 }
 long time = System.currentTimeMillis();
 LOGGER.log(Level.SEVERE, "Unexpected exception " + time + ":", t);
 // UndeclaredThrowableException is not perfect since I need to
 // provide null as parameter to the constructor. But excpetion
 // thrown has to be a runtime and must be in classpath on client
 // side.
 Throwable newException = new UndeclaredThrowableException(null,
 "Chained exception has been logged on server with reference " + time
 + " !\nMessage was " + t.getMessage());
 throw newException;
 }
 }

 /**
 * Return the name of the interceptor
 */
 public String getName() {
 return ExceptionHanlderInterceptor.class.getName();
 }
}