Minecraft 17w17a, Minecraft 17w18b
Putting an empty .json file in the data\advancements folder of a world causes the server to crash when the world is loaded.
Description: Exception in server tick loop java.lang.NullPointerException: Exception in server tick loop at j.a(SourceFile:64) at mx.a(SourceFile:74) at mx.<init>(SourceFile:66) at ns.b(SourceFile:162) at cgb.a(SourceFile:98) at cgb.j(SourceFile:130) at net.minecraft.server.MinecraftServer.run(SourceFile:436) at java.lang.Thread.run(Unknown Source)
- relates to
MC-116926 Advancement file containing only "null" crashes server