java.lang.IllegalStateException
at net.minecraft.util.thread.LockHelper.crash(LockHelper:27)
at net.minecraft.util.thread.LockHelper.checkLock(LockHelper:19)
at net.minecraft.world.chunk.PalettedContainer.lock(PalettedContainer:50)
at net.minecraft.world.chunk.PalettedContainer.setSync(PalettedContainer:110)
at net.minecraft.world.chunk.ChunkSection.setBlockState(ChunkSection:66)
at net.minecraft.world.chunk.ChunkSection.setBlockState(ChunkSection:60)
at net.minecraft.world.chunk.ProtoChunk.setBlockState(ProtoChunk:179)
at com.yungnickyoung.minecraft.betterstrongholds.world.processor.LegProcessor.process(LegProcessor.java:44)
at net.minecraft.structure.Structure.process(Structure:385)
at net.minecraft.structure.Structure.place(Structure:228)
at net.minecraft.structure.pool.SinglePoolElement.generate(SinglePoolElement:126)
at net.minecraft.structure.PoolStructurePiece.generate(PoolStructurePiece:88)
at net.minecraft.structure.PoolStructurePiece.generate(PoolStructurePiece:84)
at net.minecraft.structure.StructureStart.generateStructure(StructureStart:97)
at net.minecraft.world.biome.Biome.method_28401(Biome:366)
at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183)
at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:179)
at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197)
at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197)
at java.util.PrimitiveIterator$OfLong.forEachRemaining(PrimitiveIterator.java:189)
at it.unimi.dsi.fastutil.longs.LongIterator.forEachRemaining(LongIterator.java:53)
at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801)
at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484)
at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150)
at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173)
at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:596)
at net.minecraft.world.biome.Biome.generateFeatureStep(Biome:365)
at net.minecraft.world.gen.chunk.ChunkGenerator.generateFeatures(ChunkGenerator:245)
at net.minecraft.world.chunk.ChunkStatus.method_12151(ChunkStatus:100)
at net.minecraft.world.chunk.ChunkStatus.runGenerationTask(ChunkStatus:231)
at net.minecraft.server.world.ThreadedAnvilChunkStorage.method_17225(ThreadedAnvilChunkStorage:556)
at com.mojang.datafixers.util.Either$Left.map(Either.java:38)
at net.minecraft.server.world.ThreadedAnvilChunkStorage.method_17224(ThreadedAnvilChunkStorage:550)
at java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:1146)
at java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:478)
at net.minecraft.server.world.ChunkTaskPrioritySystem.method_17634(ChunkTaskPrioritySystem:58)
at net.minecraft.util.thread.TaskExecutor.runNext(TaskExecutor:91)
at net.minecraft.util.thread.TaskExecutor.runWhile(TaskExecutor:146)
at net.minecraft.util.thread.TaskExecutor.run(TaskExecutor:102)
at java.util.concurrent.ForkJoinTask$RunnableExecuteAction.exec(ForkJoinTask.java:1434)
at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:295)
at java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1016)
at java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1665)
at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1598)
at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:183)
well, everything is in the title...
java.lang.IllegalStateException at net.minecraft.util.thread.LockHelper.crash(LockHelper:27) at net.minecraft.util.thread.LockHelper.checkLock(LockHelper:19) at net.minecraft.world.chunk.PalettedContainer.lock(PalettedContainer:50) at net.minecraft.world.chunk.PalettedContainer.setSync(PalettedContainer:110) at net.minecraft.world.chunk.ChunkSection.setBlockState(ChunkSection:66) at net.minecraft.world.chunk.ChunkSection.setBlockState(ChunkSection:60) at net.minecraft.world.chunk.ProtoChunk.setBlockState(ProtoChunk:179) at com.yungnickyoung.minecraft.betterstrongholds.world.processor.LegProcessor.process(LegProcessor.java:44) at net.minecraft.structure.Structure.process(Structure:385) at net.minecraft.structure.Structure.place(Structure:228) at net.minecraft.structure.pool.SinglePoolElement.generate(SinglePoolElement:126) at net.minecraft.structure.PoolStructurePiece.generate(PoolStructurePiece:88) at net.minecraft.structure.PoolStructurePiece.generate(PoolStructurePiece:84) at net.minecraft.structure.StructureStart.generateStructure(StructureStart:97) at net.minecraft.world.biome.Biome.method_28401(Biome:366) at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:179) at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197) at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197) at java.util.PrimitiveIterator$OfLong.forEachRemaining(PrimitiveIterator.java:189) at it.unimi.dsi.fastutil.longs.LongIterator.forEachRemaining(LongIterator.java:53) at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801) at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:596) at net.minecraft.world.biome.Biome.generateFeatureStep(Biome:365) at net.minecraft.world.gen.chunk.ChunkGenerator.generateFeatures(ChunkGenerator:245) at net.minecraft.world.chunk.ChunkStatus.method_12151(ChunkStatus:100) at net.minecraft.world.chunk.ChunkStatus.runGenerationTask(ChunkStatus:231) at net.minecraft.server.world.ThreadedAnvilChunkStorage.method_17225(ThreadedAnvilChunkStorage:556) at com.mojang.datafixers.util.Either$Left.map(Either.java:38) at net.minecraft.server.world.ThreadedAnvilChunkStorage.method_17224(ThreadedAnvilChunkStorage:550) at java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:1146) at java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:478) at net.minecraft.server.world.ChunkTaskPrioritySystem.method_17634(ChunkTaskPrioritySystem:58) at net.minecraft.util.thread.TaskExecutor.runNext(TaskExecutor:91) at net.minecraft.util.thread.TaskExecutor.runWhile(TaskExecutor:146) at net.minecraft.util.thread.TaskExecutor.run(TaskExecutor:102) at java.util.concurrent.ForkJoinTask$RunnableExecuteAction.exec(ForkJoinTask.java:1434) at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:295) at java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1016) at java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1665) at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1598) at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:183)