Stephan Ihling

duplicate of MC-183756

duplicate of MC-183756

duplicate of MC-183756

Full Log with Exception:

UglyLauncher-Version: 1.1.0.43
Using Java-Version: C:\Program Files\Java\jre1.8.0_241\bin\javaw (64bit)
Startparameter: -d64 -Xms512m -Xmx2048m -Xmn128m -server -jar "minecraft_server.20w20a.jar" nogui
[18:22:32] [main/ERROR]: Unable to bootstrap registry 'minecraft:entity_type'
[18:22:32] [main/ERROR]: Unable to bootstrap registry 'minecraft:feature'
Exception in thread "main" java.lang.ExceptionInInitializerError
	at gl.H(SourceFile:94)
	at gl.a(SourceFile:132)
	at java.util.LinkedHashMap$LinkedEntrySet.forEach(Unknown Source)
	at gl.<clinit>(SourceFile:131)
	at aoc.a(SourceFile:144)
	at aoc.<clinit>(SourceFile:150)
	at ckx.<clinit>(SourceFile:23)
	at cka.<clinit>(SourceFile:64)
	at cqg.<clinit>(SourceFile:77)
	at cif.<clinit>(SourceFile:64)
	at net.minecraft.server.MinecraftServer.<clinit>(SourceFile:179)
Caused by: java.lang.NullPointerException
	at bsh.<init>(SourceFile:44)
	at bqk.<clinit>(SourceFile:9)
	... 11 more

19w04b affected

19w04a affected

This error also occurs when rcon is enabled.

enable-rcon=true

also in 19w03c

Still in 19w03b

19w03 is also affected

First snapshot with this error is 18w47a.