This week's book giveaway is in the OCMJEA forum. We're giving away four copies of OCM Java EE 6 Enterprise Architect Exam Guide and have Paul Allen & Joseph Bambara on-line! See this thread for details.
I can see this word being used in many places of the SPEC. like for example in page 68 of core spec it says "The PreDestroy lifecycle callback interceptor methods execute in an unspecified transaction and security context."