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Author SHA1 Message Date
Aikar
6c87b85dd1
1.16.1 prep 2020-06-24 22:00:02 -04:00
Aikar
7a2b345b55
Synchronize DataPaletteBlock instead of ReentrantLock 
Mojang has flaws in their logic about chunks being concurrently
wrote to. So we constantly see crashes around multiple threads writing.

Additionally, java has optimized synchronization so well that its
in many times faster than trying to manage read wrote locks for low
contention situations.

And this is extremely a low contention situation.

Fixes #3293
Fixes #2493
 2020-05-29 20:36:42 -04:00