RFR: 8013155: [pack200] improve performance of pack200

Alexander Zuev alexander.zuev at oracle.com
Tue Apr 30 16:38:05 UTC 2013

Please review this fix which by fine-tuning of just one method gives up 
to 40% performance
improvement on packing and repacking of jar files.
Also removed unneeded local variable initialization from Code class - 
not for performance gain,
just to make world a better place.


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