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Author SHA1 Message Date
Spottedleaf
ec7bd6a7c6 even even even even more work 2020-06-25 16:38:24 -07:00
Aikar
7ffde5cb24 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