Javassist vs. BCEL for AOP Work

[reldev]

Just wondering if someone could explain briefly the choice of Javassist over BCEL as the bytecode modification package for the AOP work?

Thanks.

[crazybob]

Absolutely. First off, Javassist can do anything BCEL can do. Second, Javassist has a number of convenience methods to facilitate such tasks as boxing and unboxing primitives, creating object arrays for arguments, etc. Third, Javassist has reasonable source-level abstraction, meaning that in most cases, you can pass it a String of Java source code rather than rolling your own byte code. Lastly, for what it's worth, Javassist was made with exactly this type of application in mind.

[belaban]

What about J-Orchestra ?

[catch23]

I thought J-Orchestra still uses BCEL to do its work? I'm not completely sure since it's been almost a year since I've touched JOrchestra stuff.