Espresso : An old java compiler . forked from : http://types.bu.edu/Espresso/JavaEspresso.html
JRegex : A compact and efficient regular expression library for Java. forked from http://jregex.sourceforge.net/
luau : lua in java . forked from : https://github.com/luaj/luaj
vm_micro_rt : A minijvm runtime library, less classes.
vm_test_rt : A minijvm runtime library, 24 class only , test only .