MC-236752java.lang.NullPointerException when generating configured feature
Minecraft crashed when I traveled to my custom dimension after making changes to cobweb_patch.json, which (if working correctly) would generate a patch of cobwebs in a biome made of soul sand. Specifically, I was attempting to get the cobweb patches to generate at surface level like my trees are. I won't upload a full data pack specifically for testing the issue, but hopefully the stack trace and the JSON file in question should give some insight into what might be causing the problem. (Edit: switching from vegetation_patch to random_patch fixed the crash and got the cobweb patches spawning correctly.)
Encountered an unexpected exception z: Feature placement at net.minecraft.server.MinecraftServer.b(SourceFile:895) at net.minecraft.server.MinecraftServer.a(SourceFile:831) at faq.a(SourceFile:96) at net.minecraft.server.MinecraftServer.x(SourceFile:697) at net.minecraft.server.MinecraftServer.a(SourceFile:270) at java.base/java.lang.Thread.run(Thread.java:831) Caused by: java.lang.NullPointerException: Cannot invoke "cro.a(bxl, cmo, java.util.Random, gg)" because the return value of "java.util.function.Supplier.get()" is null at cuj.a(SourceFile:94) at cuj.a(SourceFile:88) at cuj.a(SourceFile:37) at cro.a(SourceFile:58) at cru.a(SourceFile:29) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.Streams$StreamBuilderImpl.forEachRemaining(Streams.java:411) at java.base/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:762) at java.base/java.util.stream.ReferencePipeline$7$1.accept(ReferencePipeline.java:276) at java.base/java.util.stream.Streams$StreamBuilderImpl.forEachRemaining(Streams.java:411) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:596) at java.base/java.util.stream.ReferencePipeline$7$1.accept(ReferencePipeline.java:276) at java.base/java.util.stream.Streams$StreamBuilderImpl.forEachRemaining(Streams.java:411) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:596) at cru.a(SourceFile:28) at cro.a(SourceFile:58) at cru.a(SourceFile:29) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.IntPipeline$1$1.accept(IntPipeline.java:180) at java.base/java.util.stream.Streams$RangeIntSpliterator.forEachRemaining(Streams.java:104) at java.base/java.util.Spliterator$OfInt.forEachRemaining(Spliterator.java:699) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:596) at cru.a(SourceFile:28) at cro.a(SourceFile:58) at bxp.a(SourceFile:388) at cmo.a(SourceFile:245) at cmq.c(SourceFile:100) at cmq.a(SourceFile:231) at abe.a(SourceFile:556) at com.mojang.datafixers.util.Either$Left.map(Either.java:38) at abe.a(SourceFile:550) at java.base/java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:1146) at java.base/java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:478) at abg.b(SourceFile:58) at aqy.g(SourceFile:91) at aqy.a(SourceFile:146) at aqy.run(SourceFile:102) at java.base/java.util.concurrent.ForkJoinTask$RunnableExecuteAction.exec(ForkJoinTask.java:1434) at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:295) at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1016) at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1665) at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1598) at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:183)
Environment
Windows 10
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Created Issue:
java.lang.NullPointerException when generating configured feature
Minecraft crashed when I traveled to my custom dimension after making changes to cobweb_patch.json, which (if working correctly) would generate a patch of cobwebs in a biome made of soul sand. Specifically, I was attempting to get the cobweb patches to generate at surface level like my trees are. I won't upload a full data pack specifically for testing the issue, but hopefully the stack trace and the JSON file in question should give some insight into what might be causing the problem.
Encountered an unexpected exception z: Feature placement at net.minecraft.server.MinecraftServer.b(SourceFile:895) at net.minecraft.server.MinecraftServer.a(SourceFile:831) at faq.a(SourceFile:96) at net.minecraft.server.MinecraftServer.x(SourceFile:697) at net.minecraft.server.MinecraftServer.a(SourceFile:270) at java.base/java.lang.Thread.run(Thread.java:831) Caused by: java.lang.NullPointerException: Cannot invoke "cro.a(bxl, cmo, java.util.Random, gg)" because the return value of "java.util.function.Supplier.get()" is null at cuj.a(SourceFile:94) at cuj.a(SourceFile:88) at cuj.a(SourceFile:37) at cro.a(SourceFile:58) at cru.a(SourceFile:29) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.Streams$StreamBuilderImpl.forEachRemaining(Streams.java:411) at java.base/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:762) at java.base/java.util.stream.ReferencePipeline$7$1.accept(ReferencePipeline.java:276) at java.base/java.util.stream.Streams$StreamBuilderImpl.forEachRemaining(Streams.java:411) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:596) at java.base/java.util.stream.ReferencePipeline$7$1.accept(ReferencePipeline.java:276) at java.base/java.util.stream.Streams$StreamBuilderImpl.forEachRemaining(Streams.java:411) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:596) at cru.a(SourceFile:28) at cro.a(SourceFile:58) at cru.a(SourceFile:29) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.IntPipeline$1$1.accept(IntPipeline.java:180) at java.base/java.util.stream.Streams$RangeIntSpliterator.forEachRemaining(Streams.java:104) at java.base/java.util.Spliterator$OfInt.forEachRemaining(Spliterator.java:699) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:596) at cru.a(SourceFile:28) at cro.a(SourceFile:58) at bxp.a(SourceFile:388) at cmo.a(SourceFile:245) at cmq.c(SourceFile:100) at cmq.a(SourceFile:231) at abe.a(SourceFile:556) at com.mojang.datafixers.util.Either$Left.map(Either.java:38) at abe.a(SourceFile:550) at java.base/java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:1146) at java.base/java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:478) at abg.b(SourceFile:58) at aqy.g(SourceFile:91) at aqy.a(SourceFile:146) at aqy.run(SourceFile:102) at java.base/java.util.concurrent.ForkJoinTask$RunnableExecuteAction.exec(ForkJoinTask.java:1434) at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:295) at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1016) at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1665) at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1598) at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:183)Environment
Windows 10
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Added Attachments:
Changed Description:
Minecraft crashed when I traveled to my custom dimension after making changes to cobweb_patch.json, which (if working correctly) would generate a patch of cobwebs in a biome made of soul sand. Specifically, I was attempting to get the cobweb patches to generate at surface level like my trees are. I won't upload a full data pack specifically for testing the issue, but hopefully the stack trace and the JSON file in question should give some insight into what might be causing the problem. (Edit: switching from vegetation_patch to random_patch fixed the crash and got the cobweb patches spawning correctly.)
Encountered an unexpected exception z: Feature placement at net.minecraft.server.MinecraftServer.b(SourceFile:895) at net.minecraft.server.MinecraftServer.a(SourceFile:831) at faq.a(SourceFile:96) at net.minecraft.server.MinecraftServer.x(SourceFile:697) at net.minecraft.server.MinecraftServer.a(SourceFile:270) at java.base/java.lang.Thread.run(Thread.java:831) Caused by: java.lang.NullPointerException: Cannot invoke "cro.a(bxl, cmo, java.util.Random, gg)" because the return value of "java.util.function.Supplier.get()" is null at cuj.a(SourceFile:94) at cuj.a(SourceFile:88) at cuj.a(SourceFile:37) at cro.a(SourceFile:58) at cru.a(SourceFile:29) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.Streams$StreamBuilderImpl.forEachRemaining(Streams.java:411) at java.base/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:762) at java.base/java.util.stream.ReferencePipeline$7$1.accept(ReferencePipeline.java:276) at java.base/java.util.stream.Streams$StreamBuilderImpl.forEachRemaining(Streams.java:411) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:596) at java.base/java.util.stream.ReferencePipeline$7$1.accept(ReferencePipeline.java:276) at java.base/java.util.stream.Streams$StreamBuilderImpl.forEachRemaining(Streams.java:411) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:596) at cru.a(SourceFile:28) at cro.a(SourceFile:58) at cru.a(SourceFile:29) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.IntPipeline$1$1.accept(IntPipeline.java:180) at java.base/java.util.stream.Streams$RangeIntSpliterator.forEachRemaining(Streams.java:104) at java.base/java.util.Spliterator$OfInt.forEachRemaining(Spliterator.java:699) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:596) at cru.a(SourceFile:28) at cro.a(SourceFile:58) at bxp.a(SourceFile:388) at cmo.a(SourceFile:245) at cmq.c(SourceFile:100) at cmq.a(SourceFile:231) at abe.a(SourceFile:556) at com.mojang.datafixers.util.Either$Left.map(Either.java:38) at abe.a(SourceFile:550) at java.base/java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:1146) at java.base/java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:478) at abg.b(SourceFile:58) at aqy.g(SourceFile:91) at aqy.a(SourceFile:146) at aqy.run(SourceFile:102) at java.base/java.util.concurrent.ForkJoinTask$RunnableExecuteAction.exec(ForkJoinTask.java:1434) at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:295) at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1016) at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1665) at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1598) at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:183)
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Removed Category: (Unassigned)
Can this still be reproduced in 1.18.2?
After a bit of testing I'd say this was most likely fixed during one of the updates to configured features.
Resolving as CR for now. Please let us know if you can reproduce this with a more recent version.