J2ME disassembler?

[Joseph]

I recall that with java applets (bytecode) you can use a disassembler
to reverse compile and so output a source code .java file from any
..class file. Is this still true with J2ME bytecodes? Can you still
achieve the same effect?

What are some good disassembler for java ?

 

[Daniel Tahin]

Hi,

I have used this Java SDK disassembler before:
http://kpdus.tripod.com/jad.html#download
This worked well. I don't know, perhaps it's ok for J2ME as well
(because J2ME uses the same compiler, or not?)...

 

[Darryl Pierce]

I recall that with java applets (bytecode) you can use a disassembler
to reverse compile and so output a source code .java file from any
..class file. Is this still true with J2ME bytecodes? Can you still
achieve the same effect?

Yes, Bytecodes are bytecodes. The only difference is that with the MIDP
the bytecodes are preverified before being loaded onto the device.

What are some good disassembler for java ?

Try JAD or javap.

 

[Joseph]

Yes, Bytecodes are bytecodes. The only difference is that with the MIDP
the bytecodes are preverified before being loaded onto the device.


Try JAD or javap.

Because its preverified. Wouldn't that means java disassembler won't
be able to deal with it? as it requires pure bytecode. Does preverify
do anything to the bytecode? I know that it changes the size of my
compiled j2me.

 

[Darryl Pierce]

Because its preverified.
So?

Wouldn't that means java disassembler won't
be able to deal with it? as it requires pure bytecode. Does preverify
do anything to the bytecode? I know that it changes the size of my
compiled j2me.

It does nothing to it that would bother the a decompiler. Have you
actually *tried* JAD yet?