5.2 Difficulty for full path unit test for J2EE

It's not a easy thing till now for web layer testing in J2EE projects. But many J2EE programmers need it to be easy.

There are some open source projects try to provide the "mock" J2EE server. They can work just as a normal J2EE server at most time, and faster at both starting and stopping. This can make it fater for debuging J2EE projects, but starting-stopping the "mock" J2EE server cycle still cause us too much time. It's not a good solution.