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Used HashMap with external synchrionization for exemptCache.
Patch is suggested.
The patch suggest to use ConcurrentHashMap on fast path.
The attached webrev.zip contain suggested patch
Gives +22% to SPECjbb2012(encrypted transport) on T4-4.
**may be necessary for SPECjbb2012 numbers.
SQE/OK for accepting this fix
Date: 2012-12-20 17:35:22 +0000
Date: 2012-12-28 18:30:44 +0000
There is a chain of bug fixes: JDK-7107611, JDK-7107613, JDK-7107615, JDK-7107616. Performance will get better only if all these bugs are fixed. Close/Unverified.