官网：http://asm.ow2.org/index.html
插件安装：
网eclipse 的 plugins 中追加下面一个文件夹和文件
de.loskutov.BytecodeOutline.update_2.4.3
de.loskutov.BytecodeOutline_2.4.3.jar
工具使用：
To see the bytecode of the current .java or .class file:
- Window -> Show View -> Other -> Java -> Bytecode
To compare the bytecode of two .java or .class files:
- select two *.class or *.java files -> right click -> Compare with -> Each Other Bytecode
or
- select one *.class or *.java file -> right click -> Compare with -> Another Class Bytecode
Compare also works for *.class files included in any referenced *.jar library. Additional details can be found on author home page at http://andrei.gmxhome.de/bytecode/index.html