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MC-88839

Constant Netty IllegalReferenceCountException in server

On the latest 15w38a snapshot's server jar, the server continuously throws "io.netty.util.IllegalReferenceCountException: refCnt: 0" errors, apparently when sending chunks to players, as seen in the attached latest-server.log.

Players see lots of missing chunks in the world, and frequently get disconnected. The client logs are full of netty-related "java.util.concurrent.ExecutionException: java.lang.IndexOutOfBoundsException" errors, as seen in the attached latest-client.log

Environment

minecraft_server.15w38a.jar
java version "1.8.0_51"
Java(TM) SE Runtime Environment (build 1.8.0_51-b16)
Java HotSpot(TM) Client VM (build 25.51-b03, mixed mode)

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Minecraft 15w38a

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