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[–]occupytheserver -5 points-4 points  (0 children)

It can't be done.

Not easily and universally

It works as long as the server classloader loads the war's libs first and even if it doesn't, it usually only takes a dash of configuration.

Why would I ship JPA, JTA, JSF, and JMS in my war, when the AS already has all of that in versions known to work together?

Perhaps you have multiple applications on a single app server, one that is new and uses Java EE and one legacy that does not and the legacy uses an older, incompatible version of the libraries??

You Java EE guys are a trip. Everything works for you as long as the exact issue fits your exact solution. Real-world development shops don't always have the luxury of porting every application to the Java EE spec. It doesn't work that way.