This week's book giveaway is in the OO, Patterns, UML and Refactoring forum. We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line! See this thread for details.
what you really need the server for is the messaging system (MOM) that is included in the server; JMS is only an interface to the messaging system. And it helps to have the Message Driven Beans, too, with the Java EE server.