Forge 1.12.2 Coremodding：java.lang.ClassCircularityError

分类：编程问答

如何解决Forge 1.12.2 Coremodding：java.lang.ClassCircularityError

我尝试在 1.12.2 Forge 上制作一个 coremod，以修补 Lost Cities mod 中的一些缺失内容。 （来源：https://github.com/McJtyMods/LostCities/blob/1.12/src/main/java/mcjty/lostcities/dimensions/world/lost/BuildingInfo.java）

我和一个朋友写了这个 LostCitiesClasstransformer.java：

package com.seemdmax.lcpatches;

import static org.objectweb.asm.Opcodes.ALOAD;
import static org.objectweb.asm.Opcodes.GETSTATIC;
import static org.objectweb.asm.Opcodes.IFEQ;
import static org.objectweb.asm.Opcodes.IFGT;
import static org.objectweb.asm.Opcodes.ILOAD;
import static org.objectweb.asm.Opcodes.INVOKEINTERFACE;
import static org.objectweb.asm.Opcodes.INVOKESTATIC;
import static org.objectweb.asm.Opcodes.INVOKEVIRTUAL;

import java.util.Arrays;

import org.objectweb.asm.ClassReader;
import org.objectweb.asm.ClassWriter;
import org.objectweb.asm.Type;
import org.objectweb.asm.tree.AbstractInsnNode;
import org.objectweb.asm.tree.ClassNode;
import org.objectweb.asm.tree.InsnList;
import org.objectweb.asm.tree.JumpInsnNode;
import org.objectweb.asm.tree.LabelNode;
import org.objectweb.asm.tree.MethodInsnNode;
import org.objectweb.asm.tree.MethodNode;
import org.objectweb.asm.tree.VarInsnNode;

import mcjty.lostcities.api.ILostCityBuilding;
import mcjty.lostcities.dimensions.world.lost.BuildingInfo;
import net.minecraft.launchwrapper.IClasstransformer;

public class LostCitiesClasstransformer implements IClasstransformer {
    private static final String[] classesBeingTransformed = { "mcjty.lostcities.dimensions.world.lost.BuildingInfo" };

    @Override
    public byte[] transform(String name,String transformedname,byte[] classBeingTransformed) {
        boolean isObfuscated = !name.equals(transformedname);
        int index = Arrays.asList(classesBeingTransformed).indexOf(transformedname);
        return index != -1 ? transform(index,classBeingTransformed,isObfuscated) : classBeingTransformed;
    }

    private static byte[] transform(int index,byte[] classBeingTransformed,boolean isObfuscated) {
        System.out.println("Transform " + classesBeingTransformed[index] + " got called!");
        try {
            ClassNode classNode = new ClassNode();
            ClassReader classReader = new ClassReader(classBeingTransformed);
            classReader.accept(classNode,0);

            System.out.println("Transforming " + classesBeingTransformed[index] + " Is Obf: " + isObfuscated);
            switch (index) {
            case 0:
                transformlCCellars(classNode,isObfuscated);
                break;
            }

            ClassWriter classWriter = new ClassWriter(ClassWriter.COmpuTE_MAXS | ClassWriter.COmpuTE_FRAMES);
            classNode.accept(classWriter);
            return classWriter.toByteArray();
        } catch (Exception e) {
            e.printstacktrace();
        }
        return classBeingTransformed;
    }

    private static void transformlCCellars(ClassNode buildingInfoClass,boolean isObfuscated) {
        final String BUILDING_INFO = isObfuscated ? "<init>" : "<init>";
        final String BUILDING_INFO_DESC = isObfuscated
                ? "(IILmcjty/lostcities/dimensions/world/LostCityChunkGenerator;)V"
                : "(IILmcjty/lostcities/dimensions/world/LostCityChunkGenerator;)V";

        for (MethodNode method : buildingInfoClass.methods) {
            if (method.name.equals(BUILDING_INFO) && method.desc.equals(BUILDING_INFO_DESC)) {
                System.out.println("Found method in BuildingInfo to transform");
                AbstractInsnNode targetNode = null;
                for (AbstractInsnNode instruction : method.instructions.toArray()) {
                    if (instruction.getopcode() == ILOAD) {
                        if (((VarInsnNode) instruction).var == 13 & instruction.getNext().getopcode() == IFGT) {
                            System.out.println("Matched");
                            targetNode = instruction;
                            break;
                        }
                    }
                }
                if (targetNode != null) {
                    System.out.println("Target Node valid");
                    LabelNode newLabelNode = new LabelNode();

                    InsnList toInsert = new InsnList();
                    toInsert.add(new VarInsnNode(ALOAD,0));
                    toInsert.add(new MethodInsnNode(INVOKEVIRTUAL,Type.getInternalName(BuildingInfo.class),"getBuilding","()Lmcjty/lostcities/api/ILostCityBuilding",false));
                    toInsert.add(new MethodInsnNode(INVOKEINTERFACE,Type.getInternalName(ILostCityBuilding.class),"getMinCellars","()I",false));
                    toInsert.add(
                            new MethodInsnNode(INVOKESTATIC,Type.getInternalName(Math.class),"max","(II)I",false));
                    method.instructions.insertBefore(targetNode,toInsert);
                    System.out.println("Transform done!");
                } else {
                    System.out.println("Something went wrong transforming BuildingInfo!");
                }
            }
        }
    }
}

我们要打补丁的原始代码（Bytecode Outline）：

L101
    LINENUMBER 764 L101
    ALOAD 0
    GETFIELD mcjty/lostcities/dimensions/world/lost/BuildingInfo.profile : Lmcjty/lostcities/config/LostCityProfile;
    GETFIELD mcjty/lostcities/config/LostCityProfile.BUILDING_MINCELlars : I
    ILOAD 13
    IFGT L102
    ICONST_0
    GOTO L103
L102
   FRAME FULL [mcjty/lostcities/dimensions/world/lost/BuildingInfo I I mcjty/lostcities/dimensions/world/LostCityChunkGenerator mcjty/lostcities/api/LostChunkcharacteristics java/util/Random I mcjty/lostcities/dimensions/world/lost/cityassets/CityStyle mcjty/lostcities/dimensions/world/lost/cityassets/PredefinedCity$PredefinedBuilding F I I I I] [I]
    ALOAD 5
    ILOAD 13
    INVOKEVIRTUAL java/util/Random.nextInt (I)I
L103
   FRAME FULL [mcjty/lostcities/dimensions/world/lost/BuildingInfo I I mcjty/lostcities/dimensions/world/LostCityChunkGenerator mcjty/lostcities/api/LostChunkcharacteristics java/util/Random I mcjty/lostcities/dimensions/world/lost/cityassets/CityStyle mcjty/lostcities/dimensions/world/lost/cityassets/PredefinedCity$PredefinedBuilding F I I I I] [I I]
    IADD
    ISTORE 14
L104
    LINENUMBER 765 L104
    ALOAD 0
    INVOKEVIRTUAL mcjty/lostcities/dimensions/world/lost/BuildingInfo.getMaxHighwayLevel ()I
    IFLT L105
L167
    LOCALVARIABLE topleft Lmcjty/lostcities/dimensions/world/lost/BuildingInfo; L58 L73 8
    LOCALVARIABLE reldest F L96 L94 13
    LOCALVARIABLE predefinedBuilding Lmcjty/lostcities/dimensions/world/lost/cityassets/PredefinedCity$PredefinedBuilding; L75 L74 8
    LOCALVARIABLE cityFactor F L85 L74 9
    LOCALVARIABLE maxfloors I L86 L74 10
    LOCALVARIABLE f I L87 L74 11
    LOCALVARIABLE minfloors I L91 L74 12
    LOCALVARIABLE maxcellars I L101 L74 13
    LOCALVARIABLE fb I L104 L74 14
    LOCALVARIABLE r F L115 L74 15
    LOCALVARIABLE conditionContext Lmcjty/lostcities/dimensions/world/lost/cityassets/ConditionContext; L130 L140 10
    LOCALVARIABLE randomPart Ljava/lang/String; L131 L140 11
    LOCALVARIABLE i I L127 L128 9
    LOCALVARIABLE this Lmcjty/lostcities/dimensions/world/lost/BuildingInfo; L0 L167 0
    LOCALVARIABLE chunkX I L0 L167 1
    LOCALVARIABLE chunkZ I L0 L167 2
    LOCALVARIABLE provider Lmcjty/lostcities/dimensions/world/LostCityChunkGenerator; L0 L167 3
    LOCALVARIABLE characteristics Lmcjty/lostcities/api/LostChunkcharacteristics; L31 L167 4
    LOCALVARIABLE rand Ljava/util/Random; L37 L167 5
    LOCALVARIABLE b Z L39 L167 6
    LOCALVARIABLE cs Lmcjty/lostcities/dimensions/world/lost/cityassets/CityStyle; L55 L167 7
    LOCALVARIABLE building Lmcjty/lostcities/dimensions/world/lost/cityassets/Building; L126 L167 8
    MAXSTACK = 14
    MAXLOCALS = 16

包含我们修复的字节码大纲：

   L101
    LINENUMBER 764 L101
    ALOAD 0
    GETFIELD mcjty/lostcities/dimensions/world/lost/BuildingInfo.profile : Lmcjty/lostcities/config/LostCityProfile;
    GETFIELD mcjty/lostcities/config/LostCityProfile.BUILDING_MINCELlars : I
    ALOAD 0
    INVOKEVIRTUAL mcjty/lostcities/dimensions/world/lost/BuildingInfo.getBuilding ()Lmcjty/lostcities/api/ILostCityBuilding
    INVOKEINTERFACE mcjty/lostcities/api/ILostCityBuilding.getMinCellars ()I
    INVOKESTATIC java/lang/Math.max (II)I
    ILOAD 13
    IFGT L102
    ICONST_0
    GOTO L103
   L102
   FRAME FULL [mcjty/lostcities/dimensions/world/lost/BuildingInfo I I mcjty/lostcities/dimensions/world/LostCityChunkGenerator mcjty/lostcities/api/LostChunkcharacteristics java/util/Random I mcjty/lostcities/dimensions/world/lost/cityassets/CityStyle mcjty/lostcities/dimensions/world/lost/cityassets/PredefinedCity$PredefinedBuilding F I I I I] [I]
    ALOAD 5
    ILOAD 13
   L104
    LINENUMBER 765 L104
    INVOKEVIRTUAL java/util/Random.nextInt (I)I
   L103
   FRAME FULL [mcjty/lostcities/dimensions/world/lost/BuildingInfo I I mcjty/lostcities/dimensions/world/LostCityChunkGenerator mcjty/lostcities/api/LostChunkcharacteristics java/util/Random I mcjty/lostcities/dimensions/world/lost/cityassets/CityStyle mcjty/lostcities/dimensions/world/lost/cityassets/PredefinedCity$PredefinedBuilding F I I I I] [I I]
    IADD
    ISTORE 14

...

L168
    LOCALVARIABLE topleft Lmcjty/lostcities/dimensions/world/lost/BuildingInfo; L58 L73 8
    LOCALVARIABLE reldest F L96 L94 13
    LOCALVARIABLE predefinedBuilding Lmcjty/lostcities/dimensions/world/lost/cityassets/PredefinedCity$PredefinedBuilding; L75 L74 8
    LOCALVARIABLE cityFactor F L85 L74 9
    LOCALVARIABLE maxfloors I L86 L74 10
    LOCALVARIABLE f I L87 L74 11
    LOCALVARIABLE minfloors I L91 L74 12
    LOCALVARIABLE maxcellars I L101 L74 13
    LOCALVARIABLE fb I L105 L74 14
    LOCALVARIABLE r F L116 L74 15
    LOCALVARIABLE conditionContext Lmcjty/lostcities/dimensions/world/lost/cityassets/ConditionContext; L131 L141 10
    LOCALVARIABLE randomPart Ljava/lang/String; L132 L141 11
    LOCALVARIABLE i I L128 L129 9
    LOCALVARIABLE this Lmcjty/lostcities/dimensions/world/lost/BuildingInfo; L0 L168 0
    LOCALVARIABLE chunkX I L0 L168 1
    LOCALVARIABLE chunkZ I L0 L168 2
    LOCALVARIABLE provider Lmcjty/lostcities/dimensions/world/LostCityChunkGenerator; L0 L168 3
    LOCALVARIABLE characteristics Lmcjty/lostcities/api/LostChunkcharacteristics; L31 L168 4
    LOCALVARIABLE rand Ljava/util/Random; L37 L168 5
    LOCALVARIABLE b Z L39 L168 6
    LOCALVARIABLE cs Lmcjty/lostcities/dimensions/world/lost/cityassets/CityStyle; L55 L168 7
    LOCALVARIABLE building Lmcjty/lostcities/dimensions/world/lost/cityassets/Building; L127 L168 8
    MAXSTACK = 14
    MAXLOCALS = 16

我们得到的堆栈跟踪：

net.minecraft.util.ReportedException: Exception generating new chunk
    at net.minecraft.world.WorldServer.initialize(WorldServer.java:930) ~[WorldServer.class:?]
    at net.minecraft.server.integrated.IntegratedServer.loadAllWorlds(IntegratedServer.java:124) ~[IntegratedServer.class:?]
    at net.minecraft.server.integrated.IntegratedServer.init(IntegratedServer.java:160) ~[IntegratedServer.class:?]
    at net.minecraft.server.minecraftServer.run(minecraftServer.java:552) [minecraftServer.class:?]
    at java.lang.Thread.run(Thread.java:748) [?:1.8.0_281]
Caused by: java.lang.NoClassDefFoundError: mcjty/lostcities/dimensions/world/lost/BuildingInfo
    at mcjty.lostcities.dimensions.world.LostCityChunkGenerator.generateChunk(LostCityChunkGenerator.java:216) ~[LostCityChunkGenerator.class:?]
    at net.minecraft.world.gen.ChunkProviderServer.provideChunk(ChunkProviderServer.java:155) ~[ChunkProviderServer.class:?]
    at net.minecraft.world.World.getChunkFromChunkCoords(World.java:362) ~[World.class:?]
    at net.minecraft.world.World.getChunkFromBlockCoords(World.java:354) ~[World.class:?]
    at net.minecraft.world.World.getBlockState(World.java:995) ~[World.class:?]
    at net.minecraft.world.World.isAirBlock(World.java:279) ~[World.class:?]
    at net.minecraft.world.World.getGroundAboveSeaLevel(World.java:252) ~[World.class:?]
    at net.minecraft.world.WorldProvider.canCoordinateBeSpawn(WorldProvider.java:102) ~[WorldProvider.class:?]
    at net.minecraft.world.WorldServer.createSpawnPosition(WorldServer.java:989) ~[WorldServer.class:?]
    at net.minecraft.world.WorldServer.initialize(WorldServer.java:908) ~[WorldServer.class:?]
    ... 4 more
Caused by: java.lang.classNotFoundException: mcjty.lostcities.dimensions.world.lost.BuildingInfo
    at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191) ~[launchwrapper-1.12.jar:?]
    at java.lang.classLoader.loadClass(ClassLoader.java:418) ~[?:1.8.0_281]
    at java.lang.classLoader.loadClass(ClassLoader.java:351) ~[?:1.8.0_281]
    at mcjty.lostcities.dimensions.world.LostCityChunkGenerator.generateChunk(LostCityChunkGenerator.java:216) ~[LostCityChunkGenerator.class:?]
    at net.minecraft.world.gen.ChunkProviderServer.provideChunk(ChunkProviderServer.java:155) ~[ChunkProviderServer.class:?]
    at net.minecraft.world.World.getChunkFromChunkCoords(World.java:362) ~[World.class:?]
    at net.minecraft.world.World.getChunkFromBlockCoords(World.java:354) ~[World.class:?]
    at net.minecraft.world.World.getBlockState(World.java:995) ~[World.class:?]
    at net.minecraft.world.World.isAirBlock(World.java:279) ~[World.class:?]
    at net.minecraft.world.World.getGroundAboveSeaLevel(World.java:252) ~[World.class:?]
    at net.minecraft.world.WorldProvider.canCoordinateBeSpawn(WorldProvider.java:102) ~[WorldProvider.class:?]
    at net.minecraft.world.WorldServer.createSpawnPosition(WorldServer.java:989) ~[WorldServer.class:?]
    at net.minecraft.world.WorldServer.initialize(WorldServer.java:908) ~[WorldServer.class:?]
    ... 4 more
Caused by: net.minecraftforge.fml.common.asm.ASMTransformerWrapper$TransformerException: Exception in class transformer com.seemdmax.lcpatches.LostCitiesClasstransformer@1bec3ef7 from coremod Lost Cities Patches
    at net.minecraftforge.fml.common.asm.ASMTransformerWrapper$TransformerWrapper.transform(ASMTransformerWrapper.java:260) ~[forgeSrc-1.12.2-14.23.5.2847.jar:?]
    at net.minecraft.launchwrapper.LaunchClassLoader.runTransformers(LaunchClassLoader.java:279) ~[launchwrapper-1.12.jar:?]
    at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:176) ~[launchwrapper-1.12.jar:?]
    at java.lang.classLoader.loadClass(ClassLoader.java:418) ~[?:1.8.0_281]
    at java.lang.classLoader.loadClass(ClassLoader.java:351) ~[?:1.8.0_281]
    at mcjty.lostcities.dimensions.world.LostCityChunkGenerator.generateChunk(LostCityChunkGenerator.java:216) ~[LostCityChunkGenerator.class:?]
    at net.minecraft.world.gen.ChunkProviderServer.provideChunk(ChunkProviderServer.java:155) ~[ChunkProviderServer.class:?]
    at net.minecraft.world.World.getChunkFromChunkCoords(World.java:362) ~[World.class:?]
    at net.minecraft.world.World.getChunkFromBlockCoords(World.java:354) ~[World.class:?]
    at net.minecraft.world.World.getBlockState(World.java:995) ~[World.class:?]
    at net.minecraft.world.World.isAirBlock(World.java:279) ~[World.class:?]
    at net.minecraft.world.World.getGroundAboveSeaLevel(World.java:252) ~[World.class:?]
    at net.minecraft.world.WorldProvider.canCoordinateBeSpawn(WorldProvider.java:102) ~[WorldProvider.class:?]
    at net.minecraft.world.WorldServer.createSpawnPosition(WorldServer.java:989) ~[WorldServer.class:?]
    at net.minecraft.world.WorldServer.initialize(WorldServer.java:908) ~[WorldServer.class:?]
    ... 4 more
Caused by: java.lang.classCircularityError: mcjty/lostcities/dimensions/world/lost/BuildingInfo
    at com.seemdmax.lcpatches.LostCitiesClasstransformer.transformlCCellars(LostCitiesClasstransformer.java:100) ~[bin/:?]
    at com.seemdmax.lcpatches.LostCitiesClasstransformer.transform(LostCitiesClasstransformer.java:55) ~[bin/:?]
    at com.seemdmax.lcpatches.LostCitiesClasstransformer.transform(LostCitiesClasstransformer.java:39) ~[bin/:?]
    at net.minecraftforge.fml.common.asm.ASMTransformerWrapper$TransformerWrapper.transform(ASMTransformerWrapper.java:256) ~[forgeSrc-1.12.2-14.23.5.2847.jar:?]
    at net.minecraft.launchwrapper.LaunchClassLoader.runTransformers(LaunchClassLoader.java:279) ~[launchwrapper-1.12.jar:?]
    at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:176) ~[launchwrapper-1.12.jar:?]
    at java.lang.classLoader.loadClass(ClassLoader.java:418) ~[?:1.8.0_281]
    at java.lang.classLoader.loadClass(ClassLoader.java:351) ~[?:1.8.0_281]
    at mcjty.lostcities.dimensions.world.LostCityChunkGenerator.generateChunk(LostCityChunkGenerator.java:216) ~[LostCityChunkGenerator.class:?]
    at net.minecraft.world.gen.ChunkProviderServer.provideChunk(ChunkProviderServer.java:155) ~[ChunkProviderServer.class:?]
    at net.minecraft.world.World.getChunkFromChunkCoords(World.java:362) ~[World.class:?]
    at net.minecraft.world.World.getChunkFromBlockCoords(World.java:354) ~[World.class:?]
    at net.minecraft.world.World.getBlockState(World.java:995) ~[World.class:?]
    at net.minecraft.world.World.isAirBlock(World.java:279) ~[World.class:?]
    at net.minecraft.world.World.getGroundAboveSeaLevel(World.java:252) ~[World.class:?]
    at net.minecraft.world.WorldProvider.canCoordinateBeSpawn(WorldProvider.java:102) ~[WorldProvider.class:?]
    at net.minecraft.world.WorldServer.createSpawnPosition(WorldServer.java:989) ~[WorldServer.class:?]
    at net.minecraft.world.WorldServer.initialize(WorldServer.java:908) ~[WorldServer.class:?]
    ... 4 more

我们尝试了什么： 我们尝试使用不同的方式获得建筑物，例如使用GETFIELD。错误保持不变。

任何帮助将不胜感激。如果您需要了解更多详情，请随时询问。提前致谢。

编辑： 在对字符串进行硬编码后，我得到了另一个 Stacktrace。这是否仍然与我在 ASM 上做错有关？

net.minecraft.util.ReportedException: Exception generating new chunk
    at net.minecraft.world.WorldServer.initialize(WorldServer.java:930) ~[WorldServer.class:?]
    at net.minecraft.server.integrated.IntegratedServer.loadAllWorlds(IntegratedServer.java:124) ~[IntegratedServer.class:?]
    at net.minecraft.server.integrated.IntegratedServer.init(IntegratedServer.java:160) ~[IntegratedServer.class:?]
    at net.minecraft.server.minecraftServer.run(minecraftServer.java:552) [minecraftServer.class:?]
    at java.lang.Thread.run(Thread.java:748) [?:1.8.0_281]
Caused by: java.lang.NoClassDefFoundError: mcjty/lostcities/dimensions/world/lost/BuildingInfo
    at mcjty.lostcities.dimensions.world.LostCityChunkGenerator.generateChunk(LostCityChunkGenerator.java:216) ~[LostCityChunkGenerator.class:?]
    at net.minecraft.world.gen.ChunkProviderServer.provideChunk(ChunkProviderServer.java:155) ~[ChunkProviderServer.class:?]
    at net.minecraft.world.World.getChunkFromChunkCoords(World.java:362) ~[World.class:?]
    at net.minecraft.world.World.getChunkFromBlockCoords(World.java:354) ~[World.class:?]
    at net.minecraft.world.World.getBlockState(World.java:995) ~[World.class:?]
    at net.minecraft.world.World.isAirBlock(World.java:279) ~[World.class:?]
    at net.minecraft.world.World.getGroundAboveSeaLevel(World.java:252) ~[World.class:?]
    at net.minecraft.world.WorldProvider.canCoordinateBeSpawn(WorldProvider.java:102) ~[WorldProvider.class:?]
    at net.minecraft.world.WorldServer.createSpawnPosition(WorldServer.java:989) ~[WorldServer.class:?]
    at net.minecraft.world.WorldServer.initialize(WorldServer.java:908) ~[WorldServer.class:?]
    ... 4 more
Caused by: java.lang.classNotFoundException: mcjty.lostcities.dimensions.world.lost.BuildingInfo
    at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191) ~[launchwrapper-1.12.jar:?]
    at java.lang.classLoader.loadClass(ClassLoader.java:418) ~[?:1.8.0_281]
    at java.lang.classLoader.loadClass(ClassLoader.java:351) ~[?:1.8.0_281]
    at mcjty.lostcities.dimensions.world.LostCityChunkGenerator.generateChunk(LostCityChunkGenerator.java:216) ~[LostCityChunkGenerator.class:?]
    at net.minecraft.world.gen.ChunkProviderServer.provideChunk(ChunkProviderServer.java:155) ~[ChunkProviderServer.class:?]
    at net.minecraft.world.World.getChunkFromChunkCoords(World.java:362) ~[World.class:?]
    at net.minecraft.world.World.getChunkFromBlockCoords(World.java:354) ~[World.class:?]
    at net.minecraft.world.World.getBlockState(World.java:995) ~[World.class:?]
    at net.minecraft.world.World.isAirBlock(World.java:279) ~[World.class:?]
    at net.minecraft.world.World.getGroundAboveSeaLevel(World.java:252) ~[World.class:?]
    at net.minecraft.world.WorldProvider.canCoordinateBeSpawn(WorldProvider.java:102) ~[WorldProvider.class:?]
    at net.minecraft.world.WorldServer.createSpawnPosition(WorldServer.java:989) ~[WorldServer.class:?]
    at net.minecraft.world.WorldServer.initialize(WorldServer.java:908) ~[WorldServer.class:?]
    ... 4 more
Caused by: java.lang.Arrayindexoutofboundsexception: 41
    at org.objectweb.asm.Type.getType(Type.java:490) ~[asm-debug-all-5.2.jar:5.2]
    at org.objectweb.asm.Type.getReturnType(Type.java:384) ~[asm-debug-all-5.2.jar:5.2]
    at org.objectweb.asm.commons.Remapper.mapMethodDesc(Remapper.java:125) ~[asm-debug-all-5.2.jar:5.2]
    at org.objectweb.asm.commons.RemappingMethodAdapter.doVisitMethodInsn(RemappingMethodAdapter.java:157) ~[asm-debug-all-5.2.jar:5.2]
    at org.objectweb.asm.commons.RemappingMethodAdapter.visitMethodInsn(RemappingMethodAdapter.java:143) ~[asm-debug-all-5.2.jar:5.2]
    at org.objectweb.asm.ClassReader.readCode(ClassReader.java:1496) ~[asm-debug-all-5.2.jar:5.2]
    at org.objectweb.asm.ClassReader.readMethod(ClassReader.java:1032) ~[asm-debug-all-5.2.jar:5.2]
    at org.objectweb.asm.ClassReader.accept(ClassReader.java:708) ~[asm-debug-all-5.2.jar:5.2]
    at org.objectweb.asm.ClassReader.accept(ClassReader.java:521) ~[asm-debug-all-5.2.jar:5.2]
    at net.minecraftforge.fml.common.asm.transformers.DeobfuscationTransformer.transform(DeobfuscationTransformer.java:76) ~[forgeSrc-1.12.2-14.23.5.2847.jar:?]
    at net.minecraft.launchwrapper.LaunchClassLoader.runTransformers(LaunchClassLoader.java:279) ~[launchwrapper-1.12.jar:?]
    at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:176) ~[launchwrapper-1.12.jar:?]
    at java.lang.classLoader.loadClass(ClassLoader.java:418) ~[?:1.8.0_281]
    at java.lang.classLoader.loadClass(ClassLoader.java:351) ~[?:1.8.0_281]
    at mcjty.lostcities.dimensions.world.LostCityChunkGenerator.generateChunk(LostCityChunkGenerator.java:216) ~[LostCityChunkGenerator.class:?]
    at net.minecraft.world.gen.ChunkProviderServer.provideChunk(ChunkProviderServer.java:155) ~[ChunkProviderServer.class:?]
    at net.minecraft.world.World.getChunkFromChunkCoords(World.java:362) ~[World.class:?]
    at net.minecraft.world.World.getChunkFromBlockCoords(World.java:354) ~[World.class:?]
    at net.minecraft.world.World.getBlockState(World.java:995) ~[World.class:?]
    at net.minecraft.world.World.isAirBlock(World.java:279) ~[World.class:?]
    at net.minecraft.world.World.getGroundAboveSeaLevel(World.java:252) ~[World.class:?]
    at net.minecraft.world.WorldProvider.canCoordinateBeSpawn(WorldProvider.java:102) ~[WorldProvider.class:?]
    at net.minecraft.world.WorldServer.createSpawnPosition(WorldServer.java:989) ~[WorldServer.class:?]
    at net.minecraft.world.WorldServer.initialize(WorldServer.java:908) ~[WorldServer.class:?]
    ... 4 more

解决方法

问题是你做了Type.getInternalName(BuildingInfo.class)。那正是您在加载时尝试转换的类，因此您通过以需要加载它的方式使用它来创建循环引用。您需要在那里对字符串 "mcjty/lostcities/dimensions/world/lost/BuildingInfo" 进行硬编码。

此外，在 "()Lmcjty/lostcities/api/ILostCityBuilding" 中，应该在末尾有一个分号，因此将其更改为 "()Lmcjty/lostcities/api/ILostCityBuilding;"。

最后，您需要将 false 中的 true 更改为 new MethodInsnNode(INVOKEINTERFACE,Type.getInternalName(ILostCityBuilding.class),"getMinCellars","()I",false));，因为它实际上是一个接口方法。

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