Jpct or Jmonkey

I have just finished my 1st year in college for computer science. Over the course of the summer I would like to make a prototype for either a fps/tps Now I am wondering which Engine/Library is easier for a novice like myself to get a prototype up and running.
I can put together a fps in unity3d in about a day I do not want to use unity3d. The reason I do not want to use Unity3d is because I have spent the last 2 semesters programming in java or c++ and am going to spend the next semester programming in java and assembly language(go figure) so I would like to keep using my java skills. I do not want what I have learned to deteriorate over the summer break my dad tells me if you do not use it you will lose it.
my criteria is this
1.Ease of use/user friendly
2.Quality of instructions/tutorial
3.Friendly and helpful community
4.Learning curve(I would like the one with the easier learning curve)
5.Documentation
6.Android Port(I currently own a Galaxy S)

Thank You in advance