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  1. Minecraft: Java Edition
  2. MC-213583

Crash upon importing world generation settings with over 256 layers

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Details

    • Bug
    • Status: Resolved
    • Resolution: Fixed
    • 21w03a, 21w05a, 21w05b, 21w06a, 21w07a, 21w08b, 21w10a
    • 21w11a
    • None
    • Confirmed
    • Crash
    • Very Important

    Description

      The bug

      Upon importing world generation settings that include over 256 layers, the game crashes. I've attached the settings file that I used when experiencing the issue, as well as the full crash report.

      Note that the world height can be any valid height, and that there must be at least 257 layers included.

      How to reproduce

      1. Select Singleplayer → Create New World → More World Options... → Import Settings
      2. Import the 213583.json file
        Game crashes

      Stack trace

      Description: mouseClicked event handler
      
      java.lang.ArrayIndexOutOfBoundsException: 256
      	at ctz.h(SourceFile:236)
      	at ctz.<init>(SourceFile:99)
      	at com.mojang.datafixers.util.Function6.lambda$null$4(Function6.java:18)
      	at com.mojang.serialization.DataResult$Instance.ap3(DataResult.java:337)
      	at com.mojang.serialization.codecs.RecordCodecBuilder$Instance$5.decode(RecordCodecBuilder.java:321)
      	at com.mojang.serialization.codecs.RecordCodecBuilder$2.decode(RecordCodecBuilder.java:107)
      	at com.mojang.serialization.MapDecoder.lambda$compressedDecode$0(MapDecoder.java:52)
      	at com.mojang.serialization.DataResult.lambda$flatMap$10(DataResult.java:138)
      	at com.mojang.datafixers.util.Either$Left.map(Either.java:38)
      	at com.mojang.serialization.DataResult.flatMap(DataResult.java:136)
      	at com.mojang.serialization.MapDecoder.compressedDecode(MapDecoder.java:52)
      	at com.mojang.serialization.MapCodec$MapCodecCodec.decode(MapCodec.java:91)
      	at com.mojang.serialization.Decoder$1.decode(Decoder.java:49)
      	at com.mojang.serialization.Codec$2.decode(Codec.java:71)
      	at com.mojang.serialization.Codec$1.decode(Codec.java:45)
      	at com.mojang.serialization.Decoder.parse(Decoder.java:18)
      	at com.mojang.serialization.codecs.FieldDecoder.decode(FieldDecoder.java:29)
      	at com.mojang.serialization.MapCodec$1.decode(MapCodec.java:34)
      	at com.mojang.serialization.MapDecoder$4.decode(MapDecoder.java:94)
      	at com.mojang.serialization.MapCodec$1.decode(MapCodec.java:34)
      	at com.mojang.serialization.codecs.KeyDispatchCodec.lambda$null$1(KeyDispatchCodec.java:67)
      	at com.mojang.serialization.DataResult.lambda$flatMap$10(DataResult.java:138)
      	at com.mojang.datafixers.util.Either$Left.map(Either.java:38)
      	at com.mojang.serialization.DataResult.flatMap(DataResult.java:136)
      	at com.mojang.serialization.codecs.KeyDispatchCodec.lambda$decode$2(KeyDispatchCodec.java:58)
      	at com.mojang.serialization.DataResult.lambda$flatMap$10(DataResult.java:138)
      	at com.mojang.datafixers.util.Either$Left.map(Either.java:38)
      	at com.mojang.serialization.DataResult.flatMap(DataResult.java:136)
      	at com.mojang.serialization.codecs.KeyDispatchCodec.decode(KeyDispatchCodec.java:56)
      	at com.mojang.serialization.MapDecoder.lambda$compressedDecode$0(MapDecoder.java:52)
      	at com.mojang.serialization.DataResult.lambda$flatMap$10(DataResult.java:138)
      	at com.mojang.datafixers.util.Either$Left.map(Either.java:38)
      	at com.mojang.serialization.DataResult.flatMap(DataResult.java:136)
      	at com.mojang.serialization.MapDecoder.compressedDecode(MapDecoder.java:52)
      	at com.mojang.serialization.MapCodec$MapCodecCodec.decode(MapCodec.java:91)
      	at com.mojang.serialization.Decoder.parse(Decoder.java:18)
      	at com.mojang.serialization.codecs.FieldDecoder.decode(FieldDecoder.java:29)
      	at com.mojang.serialization.MapCodec$1.decode(MapCodec.java:34)
      	at com.mojang.serialization.codecs.RecordCodecBuilder$Instance$3.decode(RecordCodecBuilder.java:249)
      	at com.mojang.serialization.codecs.RecordCodecBuilder$2.decode(RecordCodecBuilder.java:107)
      	at com.mojang.serialization.MapDecoder.lambda$compressedDecode$0(MapDecoder.java:52)
      	at com.mojang.serialization.DataResult.lambda$flatMap$10(DataResult.java:138)
      	at com.mojang.datafixers.util.Either$Left.map(Either.java:38)
      	at com.mojang.serialization.DataResult.flatMap(DataResult.java:136)
      	at com.mojang.serialization.MapDecoder.compressedDecode(MapDecoder.java:52)
      	at com.mojang.serialization.MapCodec$MapCodecCodec.decode(MapCodec.java:91)
      	at com.mojang.serialization.Decoder.parse(Decoder.java:18)
      	at com.mojang.serialization.codecs.BaseMapCodec.lambda$decode$2(BaseMapCodec.java:31)
      	at java.util.stream.ReduceOps$1ReducingSink.accept(ReduceOps.java:80)
      	at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
      	at java.util.Iterator.forEachRemaining(Iterator.java:116)
      	at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801)
      	at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
      	at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
      	at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708)
      	at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
      	at java.util.stream.ReferencePipeline.reduce(ReferencePipeline.java:484)
      	at com.mojang.serialization.codecs.BaseMapCodec.decode(BaseMapCodec.java:27)
      	at com.mojang.serialization.codecs.UnboundedMapCodec.lambda$decode$0(UnboundedMapCodec.java:38)
      	at com.mojang.serialization.DataResult.lambda$flatMap$10(DataResult.java:138)
      	at com.mojang.datafixers.util.Either$Left.map(Either.java:38)
      	at com.mojang.serialization.DataResult.flatMap(DataResult.java:136)
      	at com.mojang.serialization.codecs.UnboundedMapCodec.decode(UnboundedMapCodec.java:38)
      	at com.mojang.serialization.Decoder$2.decode(Decoder.java:63)
      	at com.mojang.serialization.Codec$2.decode(Codec.java:71)
      	at vv.decode(SourceFile:33)
      	at com.mojang.serialization.Decoder$2.decode(Decoder.java:63)
      	at com.mojang.serialization.Codec$2.decode(Codec.java:71)
      	at com.mojang.serialization.Decoder.parse(Decoder.java:18)
      	at com.mojang.serialization.codecs.FieldDecoder.decode(FieldDecoder.java:29)
      	at com.mojang.serialization.MapCodec$1.decode(MapCodec.java:34)
      	at com.mojang.serialization.codecs.RecordCodecBuilder$Instance$5.decode(RecordCodecBuilder.java:324)
      	at com.mojang.serialization.codecs.RecordCodecBuilder$2.decode(RecordCodecBuilder.java:107)
      	at com.mojang.serialization.MapDecoder.lambda$compressedDecode$0(MapDecoder.java:52)
      	at com.mojang.serialization.DataResult.lambda$flatMap$10(DataResult.java:138)
      	at com.mojang.datafixers.util.Either$Left.map(Either.java:38)
      	at com.mojang.serialization.DataResult.flatMap(DataResult.java:136)
      	at com.mojang.serialization.MapDecoder.compressedDecode(MapDecoder.java:52)
      	at com.mojang.serialization.MapCodec$MapCodecCodec.decode(MapCodec.java:91)
      	at com.mojang.serialization.Decoder$1.decode(Decoder.java:49)
      	at com.mojang.serialization.Codec$2.decode(Codec.java:71)
      	at com.mojang.serialization.Decoder.parse(Decoder.java:18)
      	at dye.a(SourceFile:171)
      	at dra.b(SourceFile:33)
      	at dqu.a(SourceFile:16)
      	at dqy.a(SourceFile:153)
      	at dry.a(SourceFile:27)
      	at dpr.b(SourceFile:92)
      	at duk.a(SourceFile:451)
      	at dpr.a(SourceFile:92)
      	at dpr.c(SourceFile:162)
      	at aow.execute(SourceFile:94)
      	at dpr.b(SourceFile:162)
      	at org.lwjgl.glfw.GLFWMouseButtonCallbackI.callback(GLFWMouseButtonCallbackI.java:36)
      	at org.lwjgl.system.JNI.invokeV(Native Method)
      	at org.lwjgl.glfw.GLFW.glfwWaitEventsTimeout(GLFW.java:3129)
      	at com.mojang.blaze3d.systems.RenderSystem.limitDisplayFPS(SourceFile:140)
      	at dpq.e(SourceFile:1076)
      	at dpq.e(SourceFile:688)
      	at net.minecraft.client.main.Main.main(SourceFile:215)
      

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              Unassigned Unassigned
              markderickson [Helper] markderickson
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              Dates

                Created:
                Updated:
                Resolved:
                CHK: