"J2EE" has been re-branded/renamed by Oracle to "Java EE". Here is the relevant sentence (the first paragraph of 10.2):
"One popular vendor-neutral API for messaging is the Java Message Service (JMS), which is part of J2EE".
It seems that there are in fact 13 references to "J2EE" total in the text.
Fixes #77 and fixes #58
Changes all references of J2EE to Java EE, removed references to the JAX-RPC project and moved it from Exercise 10.10 to Exploration Project 10.3, changed some references of JAX-RPC to JAX-WS, fixes #77, and fixes #58.