NullPointerException on client while connecting to glowstone server #1094
Description
While joining to glowstone server from 1.12.2 client (with/without forge etc) will throw a bunch of NullPointerException's (https://hastebin.com/raw/obopadoxab). Most likely this is due to some messages are sent before JoinGameMessage and on clientside player entity still not initialized. For example while loading player data from EntityStorage at some point server tries to close opened inventory and sends player SetWindowSlotMessage.
[16:38:39] [main/FATAL]: Error executing task
java.util.concurrent.ExecutionException: java.lang.NullPointerException
at java.util.concurrent.FutureTask.report(FutureTask.java:122) ~[?:1.8.0_51]
at java.util.concurrent.FutureTask.get(FutureTask.java:192) ~[?:1.8.0_51]
at h.a(Util.java:48) [h.class:?]
at bib.az(SourceFile:991) [bib.class:?]
at bib.a(SourceFile:419) [bib.class:?]
at net.minecraft.client.main.Main.main(SourceFile:123) [Main.class:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_51]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_51]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_51]
at java.lang.reflect.Method.invoke(Method.java:497) ~[?:1.8.0_51]
at net.minecraft.launchwrapper.Launch.launch(Launch.java:159) [launchwrapper-of-2.1.jar:2.1]
at net.minecraft.launchwrapper.Launch.main(Launch.java:30) [launchwrapper-of-2.1.jar:2.1]
Caused by: java.lang.NullPointerException
at brz.a(SourceFile:458) ~[brz.class:?]
at kf.a(SourceFile:66) ~[kf.class:?]
at kf.a(SourceFile:9) ~[kf.class:?]
at hv$1.run(PacketThreadUtil.java:22) ~[hv$1.class:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[?:1.8.0_51]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[?:1.8.0_51]
at h.a(Util.java:47) ~[h.class:?]
... 9 more
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