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  Removing unused classes  (Read 1392 times)
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Offline princec

JGO Kernel


Medals: 343
Projects: 3
Exp: 16 years


Eh? Who? What? ... Me?


« Posted 2004-05-06 15:16:49 »

What tools are available to remove unused classes and even methods from a set of jars? I'm sick of shipping all my util classes and methods with my game when 50% of the code is not actually loaded or executed.

Cas Smiley

Offline Herkules

Senior Member




Friendly fire isn't friendly!


« Reply #1 - Posted 2004-05-06 15:18:53 »

hm, not sure, maybe RefactorIt?

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Offline desertrock

Senior Newbie





« Reply #2 - Posted 2004-05-06 16:19:52 »

just a thought:
if you run your app with the vm argument -verbose:class it outputs the classname as soon a specific class is loaded. save this output in a textfile, parse it an check all required jars against this file.
now it is possible to write new jars which only include the required classfiles.
i've written a little tool which is capable doing this. just a hack, but it worked for me.
the only problem is for classes which get loaded later on execution...
it was actually possible to hack the rt.jar, which size dropped dramatically (but i think it's not legal to distribute such a hacked rt.jar  Grin)
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Offline NVaidya

Junior Member




Java games rock!


« Reply #3 - Posted 2004-05-06 16:33:12 »

A jar file "shrinker" maybe ! Obfuscators (typically) can do this but with the obvious side-effect. May have to actually give it a go shortly.

Gravity Sucks !
Offline ryanm

Senior Member


Projects: 1
Exp: 15 years


Used to be bleb


« Reply #4 - Posted 2004-05-07 09:48:42 »

Could this be what you're after? Or perhaps this?

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