Retroweaver: Run JDK5 code in JDK 1.4 VM

Retroweaver is what i want framework,although the jeye does not give the answer!

这个东东确实好用，极力推荐，简单易用！

java 代码

1. java -cp release\retroweaver-all-<version>.jar net.sourceforge.retroweaver.Weaver
   
2. -jar input.jar output.jar