19521 shaares
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136 private links
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sun
o I peeked into the Jar source code (after many years), and it turned out we had a very embarassing bug in the jar code: We were doing a O(n) look-up on a Hashtable (via the contains() method) for each and every file we were jarring, where it really should be a O(1) look-up operation with a HashSet.