When trying to test my mod it crashes with a NullPointerException. But it doesn't point to any of my code, just an attempt to compare a TranslationTextComponent....somewhere.

I've tried checking the method references but there's literally hundreds of places it can point to, and so far nothing I've checked leads anywhere near my code.

Does anyone have any idea what would cause this?

Crash log: 

Spoiler

---- Minecraft Crash Report ----
// Uh... Did I do that?

Time: 9/8/21, 8:11 PM
Description: Initializing game

java.lang.NullPointerException: Cannot invoke "java.lang.CharSequence.length()" because "this.text" is null
	at java.util.regex.Matcher.getTextLength(Matcher.java:1770) ~[?:?] {}
	at java.util.regex.Matcher.reset(Matcher.java:416) ~[?:?] {}
	at java.util.regex.Matcher.<init>(Matcher.java:253) ~[?:?] {}
	at java.util.regex.Pattern.matcher(Pattern.java:1134) ~[?:?] {}
	at net.minecraft.util.text.TranslationTextComponent.decomposeTemplate(TranslationTextComponent.java:55) ~[forge-1.16.5-36.2.0_mapped_official_1.16.5-recomp.jar:?] {re:classloading}
	at net.minecraft.util.text.TranslationTextComponent.decompose(TranslationTextComponent.java:45) ~[forge-1.16.5-36.2.0_mapped_official_1.16.5-recomp.jar:?] {re:classloading}
	at net.minecraft.util.text.TranslationTextComponent.visitSelf(TranslationTextComponent.java:141) ~[forge-1.16.5-36.2.0_mapped_official_1.16.5-recomp.jar:?] {re:classloading}
	at net.minecraft.util.text.ITextComponent.visit(ITextComponent.java:83) ~[forge-1.16.5-36.2.0_mapped_official_1.16.5-recomp.jar:?] {re:classloading}
	at net.minecraft.util.text.ITextComponent.visit(ITextComponent.java:88) ~[forge-1.16.5-36.2.0_mapped_official_1.16.5-recomp.jar:?] {re:classloading}
	at net.minecraft.util.text.ITextProperties.getString(ITextProperties.java:88) ~[forge-1.16.5-36.2.0_mapped_official_1.16.5-recomp.jar:?] {re:classloading}
	at net.minecraft.util.text.ITextComponent.getString(ITextComponent.java:38) ~[forge-1.16.5-36.2.0_mapped_official_1.16.5-recomp.jar:?] {re:classloading}
	at net.minecraft.client.Minecraft.lambda$null$5(Minecraft.java:643) ~[forge-1.16.5-36.2.0_mapped_official_1.16.5-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:195) ~[?:?] {}
	at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1625) ~[?:?] {}
	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$OfRef.evaluateSequential(ForEachOps.java:173) ~[?:?] {}
	at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[?:?] {}
	at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) ~[?:?] {}
	at net.minecraft.client.util.SearchTree.index(SearchTree.java:35) ~[forge-1.16.5-36.2.0_mapped_official_1.16.5-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.util.SearchTreeReloadable.add(SearchTreeReloadable.java:46) ~[forge-1.16.5-36.2.0_mapped_official_1.16.5-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.lambda$createSearchTrees$10(Minecraft.java:660) ~[forge-1.16.5-36.2.0_mapped_official_1.16.5-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at java.lang.Iterable.forEach(Iterable.java:75) ~[?:?] {}
	at net.minecraft.client.Minecraft.createSearchTrees(Minecraft.java:659) ~[forge-1.16.5-36.2.0_mapped_official_1.16.5-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.<init>(Minecraft.java:476) ~[forge-1.16.5-36.2.0_mapped_official_1.16.5-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.main.Main.main(Main.java:149) ~[forge-1.16.5-36.2.0_mapped_official_1.16.5-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] {}
	at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64) ~[?:?] {}
	at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] {}
	at java.lang.reflect.Method.invoke(Method.java:564) ~[?:?] {}
	at net.minecraftforge.userdev.FMLUserdevClientLaunchProvider.lambda$launchService$0(FMLUserdevClientLaunchProvider.java:52) ~[forge-1.16.5-36.2.0_mapped_official_1.16.5-recomp.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-8.0.9.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-8.0.9.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-8.0.9.jar:?] {}
	at cpw.mods.modlauncher.Launcher.run(Launcher.java:82) [modlauncher-8.0.9.jar:?] {}
	at cpw.mods.modlauncher.Launcher.main(Launcher.java:66) [modlauncher-8.0.9.jar:?] {}
	at net.minecraftforge.userdev.LaunchTesting.main(LaunchTesting.java:108) [forge-1.16.5-36.2.0_mapped_official_1.16.5-recomp.jar:?] {}


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Thread: Render thread
Stacktrace:
	at java.util.regex.Matcher.getTextLength(Matcher.java:1770) ~[?:?] {}
	at java.util.regex.Matcher.reset(Matcher.java:416) ~[?:?] {}
	at java.util.regex.Matcher.<init>(Matcher.java:253) ~[?:?] {}
	at java.util.regex.Pattern.matcher(Pattern.java:1134) ~[?:?] {}
	at net.minecraft.util.text.TranslationTextComponent.decomposeTemplate(TranslationTextComponent.java:55) ~[forge:?] {re:classloading}
	at net.minecraft.util.text.TranslationTextComponent.decompose(TranslationTextComponent.java:45) ~[forge:?] {re:classloading}
	at net.minecraft.util.text.TranslationTextComponent.visitSelf(TranslationTextComponent.java:141) ~[forge:?] {re:classloading}
	at net.minecraft.util.text.ITextComponent.visit(ITextComponent.java:83) ~[forge:?] {re:classloading}
	at net.minecraft.util.text.ITextComponent.visit(ITextComponent.java:88) ~[forge:?] {re:classloading}
	at net.minecraft.util.text.ITextProperties.getString(ITextProperties.java:88) ~[forge:?] {re:classloading}
	at net.minecraft.util.text.ITextComponent.getString(ITextComponent.java:38) ~[forge:?] {re:classloading}
	at net.minecraft.client.Minecraft.lambda$null$5(Minecraft.java:643) ~[forge:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:195) ~[?:?] {}
	at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1625) ~[?:?] {}
	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$OfRef.evaluateSequential(ForEachOps.java:173) ~[?:?] {}
	at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[?:?] {}
	at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) ~[?:?] {}
	at net.minecraft.client.util.SearchTree.index(SearchTree.java:35) ~[forge:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.util.SearchTreeReloadable.add(SearchTreeReloadable.java:46) ~[forge:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.lambda$createSearchTrees$10(Minecraft.java:660) ~[forge:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at java.lang.Iterable.forEach(Iterable.java:75) ~[?:?] {}
	at net.minecraft.client.Minecraft.createSearchTrees(Minecraft.java:659) ~[forge:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.<init>(Minecraft.java:476) ~[forge:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
-- Initialization --
Details:
Stacktrace:
	at net.minecraft.client.main.Main.main(Main.java:149) ~[forge-1.16.5-36.2.0_mapped_official_1.16.5-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] {}
	at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64) ~[?:?] {}
	at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] {}
	at java.lang.reflect.Method.invoke(Method.java:564) ~[?:?] {}
	at net.minecraftforge.userdev.FMLUserdevClientLaunchProvider.lambda$launchService$0(FMLUserdevClientLaunchProvider.java:52) ~[forge-1.16.5-36.2.0_mapped_official_1.16.5-recomp.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-8.0.9.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-8.0.9.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-8.0.9.jar:?] {}
	at cpw.mods.modlauncher.Launcher.run(Launcher.java:82) [modlauncher-8.0.9.jar:?] {}
	at cpw.mods.modlauncher.Launcher.main(Launcher.java:66) [modlauncher-8.0.9.jar:?] {}
	at net.minecraftforge.userdev.LaunchTesting.main(LaunchTesting.java:108) [forge-1.16.5-36.2.0_mapped_official_1.16.5-recomp.jar:?] {}


-- System Details --
Details:
	Minecraft Version: 1.16.5
	Minecraft Version ID: 1.16.5
	Operating System: Windows 10 (amd64) version 10.0
	Java Version: 15.0.2, Oracle Corporation
	Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 237189424 bytes (226 MB) / 903872512 bytes (862 MB) up to 2111832064 bytes (2014 MB)
	CPUs: 12
	JVM Flags: 3 total; -XX:+IgnoreUnrecognizedVMOptions -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -XX:+ShowCodeDetailsInExceptionMessages
	ModLauncher: 8.0.9+86+master.3cf110c
	ModLauncher launch target: fmluserdevclient
	ModLauncher naming: mcp
	ModLauncher services: 
		/mixin-0.8.2.jar mixin PLUGINSERVICE 
		/eventbus-4.0.0.jar eventbus PLUGINSERVICE 
		/forge-1.16.5-36.2.0_mapped_official_1.16.5-launcher.jar object_holder_definalize PLUGINSERVICE 
		/forge-1.16.5-36.2.0_mapped_official_1.16.5-launcher.jar runtime_enum_extender PLUGINSERVICE 
		/forge-1.16.5-36.2.0_mapped_official_1.16.5-launcher.jar capability_inject_definalize PLUGINSERVICE 
		/accesstransformers-3.0.1.jar accesstransformer PLUGINSERVICE 
		/forge-1.16.5-36.2.0_mapped_official_1.16.5-launcher.jar runtimedistcleaner PLUGINSERVICE 
		/mixin-0.8.2.jar mixin TRANSFORMATIONSERVICE 
		/forge-1.16.5-36.2.0_mapped_official_1.16.5-launcher.jar fml TRANSFORMATIONSERVICE 
	FML: 36.2
	Forge: net.minecraftforge:36.2.0
	FML Language Providers: 
		javafml@36.2
		minecraft@1
	Mod List: 
		client-extra.jar                                  |Minecraft                     |minecraft                     |1.16.5              |COMMON_SET|Manifest: a1:d4:5e:04:4f:d3:d6:e0:7b:37:97:cf:77:b0:de:ad:4a:47:ce:8c:96:49:5f:0a:cf:8c:ae:b2:6d:4b:8a:3f
		main                                              |FandomCraft Infinite          |fcix                          |0.1                 |COMMON_SET|Manifest: NOSIGNATURE
		forge-1.16.5-36.2.0_mapped_official_1.16.5-recomp.|Forge                         |forge                         |36.2.0              |COMMON_SET|Manifest: NOSIGNATURE
		Baubles-1.8.7.1-1.16.5_mapped_official_1.16.5.jar |Baubles                       |baubles                       |1.8.7               |COMMON_SET|Manifest: NOSIGNATURE
	Crash Report UUID: 5fd83b62-4461-449d-b7d1-8dd3a71c9252
	Launched Version: MOD_DEV
	Backend library: LWJGL version 3.2.2 build 10
	Backend API: NVIDIA GeForce GTX 1650 SUPER/PCIe/SSE2 GL version 4.6.0 NVIDIA 471.96, NVIDIA Corporation
	GL Caps: Using framebuffer using OpenGL 3.0
	Using VBOs: Yes
	Is Modded: Definitely; Client brand changed to 'forge'
	Type: Client (map_client.txt)
	CPU: 12x AMD Ryzen 5 3600 6-Core Processor 

 

 

Edited September 9, 20214 yr by SapphireSky
solved

Does 1.16.5 support java 15?

12 hours ago, poopoodice said:

Does 1.16.5 support java 15?

My Eclipse is using that as default, but my project is using 1.8. I'm guessing the printout does a generic Java version check instead of checking the version that's actually being used? But that wasn't the problem anyway.

9 hours ago, diesieben07 said:

Do you create a new TranslationTextComponent anywhere? Show your items and blocks and their registrations.

This was it! When overriding the method to define Item names I forgot to change the automatically-placed TranslationTextComponent to StringTextComponent. I'm not sure why that didn't come up in the initial reference search, but it's working now.

Just now, diesieben07 said:

This is not how this works.

The item names should be defined in your language files, not anywhere else.

Well that is how it's working for me, and it is working.

And yes I know they're supposed to be. But they don't need to be, so if I can avoid the hassle of having yet another reference file to constantly edit, I'm gonna do it. The only argument to use the language file is for other people to be able to edit the names to translate them, and very few people actually ever do that, so I just don't care. It works just as well, and if anything is slightly more efficient not using one. Just because the creators of something want us to do something their way, doesn't mean it's at all required or even bad to do otherwise.