demovio/minecraft-create-touchpad-scrolling-fix
demovio/minecraft-create-touchpad-scrolling-fix
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[Forge] [Minecraft 1.20.1] [Create 6.0.8] java.lang.NullPointerException: Cannot assign field "f_93623_" because "this.confirmButton" is null in Schematic Table #1

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opened 2025-12-09 19:38:17 +01:00 by hloth · 0 comments
hloth commented 2025-12-09 19:38:17 +01:00
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Branch: forge-mc1.20.1-create6.0.8

The game crashes as soon as ScrollInput widget is rendered.

Crash log 
---- Minecraft Crash Report ----
// Shall we play a game?
Time: 2025-12-09 16:01:12
Description: Ticking screen
java.lang.NullPointerException: Cannot assign field "f_93623_" because "this.confirmButton" is null
at com.simibubi.create.content.schematics.table.SchematicTableScreen.m_181908_(SchematicTableScreen.java:203) ~[create-1.20.1-6.0.8.jar%23155!/:6.0.8] {re:classloading}
at net.minecraft.client.gui.screens.inventory.AbstractContainerScreen.m_86600_(AbstractContainerScreen.java:595) ~[client-1.20.1-20230612.114412-srg.jar%23157!/:?] {re:classloading,pl:runtimedistcleaner:A}
at net.minecraft.client.Minecraft.lambda$tick$42(Minecraft.java:1785) ~[client-1.20.1-20230612.114412-srg.jar%23157!/:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:A,pl:runtimedistcleaner:A}
at net.minecraft.client.gui.screens.Screen.m_96579_(Screen.java:437) ~[client-1.20.1-20230612.114412-srg.jar%23157!/:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:computing_frames,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:create.mixins.json:compat.xaeros.XaeroPauseScreenOverrideMixin,pl:mixin:A,pl:runtimedistcleaner:A}
at net.minecraft.client.Minecraft.m_91398_(Minecraft.java:1784) ~[client-1.20.1-20230612.114412-srg.jar%23157!/:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:A,pl:runtimedistcleaner:A}
at net.minecraft.client.Minecraft.m_91383_(Minecraft.java:1112) ~[client-1.20.1-20230612.114412-srg.jar%23157!/:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:A,pl:runtimedistcleaner:A}
at net.minecraft.client.Minecraft.m_91374_(Minecraft.java:718) ~[client-1.20.1-20230612.114412-srg.jar%23157!/:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:A,pl:runtimedistcleaner:A}
at net.minecraft.client.main.Main.main(Main.java:218) ~[1.20.1-47.4.13.jar:?] {re:classloading,pl:runtimedistcleaner:A}
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] {}
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:?] {}
at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:?] {}
at java.lang.reflect.Method.invoke(Unknown Source) ~[?:?] {}
at net.minecraftforge.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:111) ~[fmlloader-1.20.1-47.4.13.jar:?] {}
at net.minecraftforge.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:99) ~[fmlloader-1.20.1-47.4.13.jar:?] {}
at net.minecraftforge.fml.loading.targets.CommonClientLaunchHandler.lambda$makeService$0(CommonClientLaunchHandler.java:25) ~[fmlloader-1.20.1-47.4.13.jar:?] {}
at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) ~[modlauncher-10.0.9.jar:?] {}
at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) ~[modlauncher-10.0.9.jar:?] {}
at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) ~[modlauncher-10.0.9.jar:?] {}
at cpw.mods.modlauncher.Launcher.run(Launcher.java:108) ~[modlauncher-10.0.9.jar:?] {}
at cpw.mods.modlauncher.Launcher.main(Launcher.java:78) ~[modlauncher-10.0.9.jar:?] {}
at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) ~[modlauncher-10.0.9.jar:?] {}
at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) ~[modlauncher-10.0.9.jar:?] {}
at cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:141) ~[bootstraplauncher-1.1.2.jar:?] {}
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] {}
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:?] {}
at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:?] {}
at java.lang.reflect.Method.invoke(Unknown Source) ~[?:?] {}
at com.modrinth.theseus.MinecraftLaunch.relaunch(MinecraftLaunch.java:63) ~[theseus.jar%2380!/:?] {}
at com.modrinth.theseus.MinecraftLaunch.main(MinecraftLaunch.java:28) ~[theseus.jar%2380!/:?] {}
Branch: [forge-mc1.20.1-create6.0.8](https://git.hloth.dev/demovio/minecraft-create-touchpad-scrolling-fix/src/branch/forge-mc1.20.1-create6.0.8) The game crashes as soon as ScrollInput widget is rendered. <details> <summary>Crash log</summary> ``` ---- Minecraft Crash Report ---- // Shall we play a game? Time: 2025-12-09 16:01:12 Description: Ticking screen java.lang.NullPointerException: Cannot assign field "f_93623_" because "this.confirmButton" is null at com.simibubi.create.content.schematics.table.SchematicTableScreen.m_181908_(SchematicTableScreen.java:203) ~[create-1.20.1-6.0.8.jar%23155!/:6.0.8] {re:classloading} at net.minecraft.client.gui.screens.inventory.AbstractContainerScreen.m_86600_(AbstractContainerScreen.java:595) ~[client-1.20.1-20230612.114412-srg.jar%23157!/:?] {re:classloading,pl:runtimedistcleaner:A} at net.minecraft.client.Minecraft.lambda$tick$42(Minecraft.java:1785) ~[client-1.20.1-20230612.114412-srg.jar%23157!/:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:A,pl:runtimedistcleaner:A} at net.minecraft.client.gui.screens.Screen.m_96579_(Screen.java:437) ~[client-1.20.1-20230612.114412-srg.jar%23157!/:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:computing_frames,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:create.mixins.json:compat.xaeros.XaeroPauseScreenOverrideMixin,pl:mixin:A,pl:runtimedistcleaner:A} at net.minecraft.client.Minecraft.m_91398_(Minecraft.java:1784) ~[client-1.20.1-20230612.114412-srg.jar%23157!/:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:A,pl:runtimedistcleaner:A} at net.minecraft.client.Minecraft.m_91383_(Minecraft.java:1112) ~[client-1.20.1-20230612.114412-srg.jar%23157!/:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:A,pl:runtimedistcleaner:A} at net.minecraft.client.Minecraft.m_91374_(Minecraft.java:718) ~[client-1.20.1-20230612.114412-srg.jar%23157!/:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:A,pl:runtimedistcleaner:A} at net.minecraft.client.main.Main.main(Main.java:218) ~[1.20.1-47.4.13.jar:?] {re:classloading,pl:runtimedistcleaner:A} at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] {} at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:?] {} at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:?] {} at java.lang.reflect.Method.invoke(Unknown Source) ~[?:?] {} at net.minecraftforge.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:111) ~[fmlloader-1.20.1-47.4.13.jar:?] {} at net.minecraftforge.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:99) ~[fmlloader-1.20.1-47.4.13.jar:?] {} at net.minecraftforge.fml.loading.targets.CommonClientLaunchHandler.lambda$makeService$0(CommonClientLaunchHandler.java:25) ~[fmlloader-1.20.1-47.4.13.jar:?] {} at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) ~[modlauncher-10.0.9.jar:?] {} at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) ~[modlauncher-10.0.9.jar:?] {} at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) ~[modlauncher-10.0.9.jar:?] {} at cpw.mods.modlauncher.Launcher.run(Launcher.java:108) ~[modlauncher-10.0.9.jar:?] {} at cpw.mods.modlauncher.Launcher.main(Launcher.java:78) ~[modlauncher-10.0.9.jar:?] {} at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) ~[modlauncher-10.0.9.jar:?] {} at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) ~[modlauncher-10.0.9.jar:?] {} at cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:141) ~[bootstraplauncher-1.1.2.jar:?] {} at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] {} at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:?] {} at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:?] {} at java.lang.reflect.Method.invoke(Unknown Source) ~[?:?] {} at com.modrinth.theseus.MinecraftLaunch.relaunch(MinecraftLaunch.java:63) ~[theseus.jar%2380!/:?] {} at com.modrinth.theseus.MinecraftLaunch.main(MinecraftLaunch.java:28) ~[theseus.jar%2380!/:?] {} ``` </details> - This only happens when GuiScrollInputClientMixin tries to inject into ScrollInput's mouseScrolled - The issue is that in SchematicTableScreen containerTick method confirmButton.active is accessed before it can be set in init - Full discussion of this issue can be found in [Forge Discord](https://discord.minecraftforge.net/): https://discord.com/channels/1129059589325852724/1129069883813007360/1447971663642759249
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Reference: demovio/minecraft-create-touchpad-scrolling-fix#1
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