When moving JMS 12.1.2 from JRockit to the JDK 7u10, we are seeing up to a 30% regression in performance.

Doing profiling analysis, found differences in how JRockit and HotSpot do locking.

Using Dave Dices's special JDK1.8-b51 HotSpot build with his locking improvements, solves the performance issue.

Creating this issue to track the backporting Dave's locking work into JDK 8

See attached JR-HSLockAnalysis-JMS.pdf for full details

This is related to Bug 15974980