- Changed add() in SynchronizedHistogram to synchronize (making copy() safely synchronized as a result).
- Added identityCount during construction at AbstractHistogram level, to help avoid deadlocks in dual-histogram synchronized operations.
- Changed add() in SynchronizedHistogram to synchronize (making copy() safely synchronized as a result).
- Added identityCount during construction at AbstractHistogram level, to help avoid deadlocks in dual-histogram synchronized operations.