https://github.com/hazelcast/hazelcast/issues/3567
IllegalMonitorStateException: Current thread is not owner of the lock! in Hibernate support under heavy load
Replaced `map.tryLock` based implementation in `IMapRegionCache.put` with spin loop around atomic operations.
Split Brain Test for Queue
Merge remote-tracking branch 'origin' into fix/queueSplitBrain
made some corrections based on reviews and rebased
split brain tests for lock and semaphore
rebased
rebased and added runner category for test
Migration test for AtomicReference
Merge remote-tracking branch 'origin' into test/atomicrefRepOperation
rebased and somecorrections
Merge remote-tracking branch 'origin' into test/LockSplitBrain
fixed failed test
Fixed some findbugs issues, minor renaming and improved javadoc
Fixed typo
Added a new FAQ entry (virtualization on AWS)
Merge pull request #3568 from cszmajda/master

Fix IllegalMonitorStateException: Current thread is not owner of the lock! in Hibernate support under heavy load
Merge pull request #3836 from hasancelik/test/LockSplitBrain

split brain tests for lock and semaphore
Merge pull request #3998 from hasancelik/test/atomicrefRepOperation

Migration test for AtomicReference
Merge pull request #4064 from pveentjer/fix/3.x/minor-improvements

Fixed some findbugs issues, minor renaming and improved javadoc
Merge pull request #3678 from hasancelik/fix/queueSplitBrain

Split Brain Test for Queue