Open Source Java Decompiler

[Gilles Gravier]

It depends on which country you are doing that in, and for which purposes.

Some countries allow decompilation (reverse engineering, in general) for 
interoperability purposes. Some don't.

Some countries allow decompilation (reverse engineering, in general) for 
purposes of finding security issues. Some don't.

But decompilation can also be used as a means to check whether your code 
obfuscator does a proper job of obfuscating your code. :)

It's always legal to decompile your own stuff. Maybe you lost the code 
or something.

Ages ago I had to maintain a COBOL application for which the source 
wasn't available anymore (just parts of the source were still there)... 
so decompilation would have been nice, instead of me having to patch 
binaries (sometimes while running in memory).

Back to legality... check, very carefully, depending on your country, 
what you are about to do.

Cheers,
Gilles.


Ouattara Oumar Aziz wrote:
> eran ratnayake :
>   
>> Hi all,
>>          Is there any free and open source Java Decompiler available in 
>> current?
>>
>> eran
>>
>>     
>
> I am not sure decompilation of programs (even open source ones) is legal 
>    ... Do anyone know something about that ?
>
> wattazoum
>
>
>   

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