Re: Compiler program platform-independant?

"Mike Schilling" <>
Fri, 7 Jan 2011 11:23:16 -0800
"Julien ?LIE" <> wrote in message

Hi Joshua,

So my question to Julien is: why do you care about it?

Comparing the binary output of class files, perhaps for backup
purposes or something.

The reason why I ask is that I have all the compiled classes of a
software. Well tested and it works fine.
Then, I was given the source code.
I want to make sure the source code actually corresponds to the software I
have already tested.

When I compile it myself (with the same compiler that was used for the
initial compilation), I obtain different Java bytecode (all the classes
are different).
I therefore wonder how I can make sure the source code is the right one...

You could try running javap over both sets of class files. If you see any
differences in the declarations of fields, methods, constructors, etc. they
don't match. (No help if the only changes are to code within method
implementations, alas.)

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