Hi. I am a newbie in J2EE using WebSphere V5. While migrating an EJB application from WebSphere V3.5 to WebSphere V5, I came across "javax.naming.Context.PROVIDER_URL". In WebSphere V3.5, it seems that it is used to resolve JNDI name for EJB or to locate home interface of the EJB. Am I correct ? However, in WebSphere V5, it causes an NamingException and the application only works without it. So can I just leave it out and safely assume that WebSphere V5 doesn't require "javax.naming.Context.PROVIDER_URL" ?