J2EE Design Pattern Notes

These are notes I made while preparing for SCEA 5. I would like to thank my friend Sajitha for helping in scribing these notes.

Problems with EJB3 over iiop on JBoss

In this post I discuss some of the problems I faced when trying to make my EJB3 session beans available over IIOP. The examples use JBoss 4.2.x and 5.x.

An EJB3 session bean’s remote business interface needs to have RMI-IIOP compatible interface according to the EJB3 spec. In addition EJBs should be available over CORBA/IIOP for interoperability. The EJB’s remote home or remote business object obtained over IIOP need to type narrowed instead of plain type casting.