JRE精简

http://blog.csdn.net/pzhtpf/article/details/7039359

http://www.cnblogs.com/wenfeng762/archive/2011/08/14/2137810.html

 

Cracking Java byte-code encryption

http://www.javaworld.com/javaqa/2003-05/01-qa-0509-jcrypt.html?page=2