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.
In my Weblogic 10.3 I can look it up through console in web browser under Enviroment->Servers->Choose your server from the table and click its name->There is a link above table in general tab "View JNDI Tree".
I bet there are another ways to get it (some scripts for example) but this is quite fast.