[1.15.2] Make server summon entity based on client

TallYate · June 17, 2020

public class key {
	private final int key;

	public key(int keyIn) {
		this.key = keyIn;
	}

	public static void encode(key msg, PacketBuffer buf) {
		buf.writeInt(msg.key);
	}

	public static key decode(PacketBuffer buf) {
		return new key(buf.readInt());
	}

	public static void handle(key msg, Supplier<NetworkEvent.Context> ctx) {
		if(msg.key==0 && ctx.get().getSender().getItemStackFromSlot(EquipmentSlotType.FEET).getItem()==ModItems.KABOOTS.get()) {
		    ctx.get().enqueueWork(() -> {
		        ServerPlayerEntity sender = ctx.get().getSender();
		        Vec3d pos = sender.getPositionVec();
		        sender.world.addEntity(new TNTEntity(sender.world, pos.getX(), pos.getY(), pos.getZ(), sender));
		    });
		}
	    ctx.get().setPacketHandled(true);
	}
}

@Mod.EventBusSubscriber(modid = CrudeTechMod.MOD_ID, bus = Bus.FORGE)
public class KeyBinds {
	
	static KeyBinding[] keyBindings = new KeyBinding[1]; 
	
	public static final KeyBinding keyExplosiveJump = new KeyBinding("Explosive Jump", GLFW.GLFW_KEY_Y, "Crude Tech");
		static Boolean keyExplosiveJumpPress = false;
	
	public static void registerKeyBindings() {
		for(int i=0; i<keyBindings.length; i++) {
			ClientRegistry.registerKeyBinding(keyBindings[i]);
		}
	}
	
	private static final String PROTOCOL_VERSION = "1";
	public static final SimpleChannel INSTANCE = NetworkRegistry.newSimpleChannel(
	    new ResourceLocation(CrudeTechMod.MOD_ID, "explosivejump"),
	    () -> PROTOCOL_VERSION,
	    PROTOCOL_VERSION::equals,
	    PROTOCOL_VERSION::equals
	);
	
	@SubscribeEvent
	public static void onInput (InputEvent.KeyInputEvent event) {
		if(event.getKey()==keyExplosiveJump.getKey().getKeyCode() && !keyExplosiveJumpPress) {
			CrudeTechMod.log("pressed");
			INSTANCE.sendToServer(new key(0));
			keyExplosiveJumpPress=true;
		}
	}
	
	
	@SubscribeEvent
	public static void onTick (ClientTickEvent event) {
		if(keyExplosiveJumpPress) {
			if(!keyExplosiveJump.isKeyDown()) {
				keyExplosiveJumpPress=false;
			}
		}
	}
	
}

This crashes the game when y is pressed

TallYate · June 17, 2020

Unrelated but, if you open this website from a search engine
https://forums.minecraftforge.net//forum/70-modder-support/

There is an extra slash -----------^

Edited June 17, 2020 by TallYate
space

poopoodice · June 17, 2020

Post the log, and have you register the packet?

[NoOneButNo] · June 17, 2020

Never trust the client. Just send a packet (like what you are doing) and do the check in the packet itself.

TallYate · June 17, 2020

[m[1;31m[21:31:27] [Render thread/ERROR] [ne.mi.fm.ne.si.IndexedMessageCodec/SIMPLENET]: Received invalid message me.joshua.crudetechmod.key on channel crudetech:explosivejump
[m[1;31m[21:31:27] [Render thread/ERROR] [ne.mi.ev.EventBus/EVENTBUS]: Exception caught during firing event: Invalid message me.joshua.crudetechmod.key
	Index: 1
	Listeners:
		0: NORMAL
		1: ASM: class me.joshua.crudetechmod.KeyBinds onInput(Lnet/minecraftforge/client/event/InputEvent$KeyInputEvent;)V
java.lang.IllegalArgumentException: Invalid message me.joshua.crudetechmod.key
	at net.minecraftforge.fml.network.simple.IndexedMessageCodec.build(IndexedMessageCodec.java:145)
	at net.minecraftforge.fml.network.simple.SimpleChannel.encodeMessage(SimpleChannel.java:85)
	at net.minecraftforge.fml.network.simple.SimpleChannel.toBuffer(SimpleChannel.java:98)
	at net.minecraftforge.fml.network.simple.SimpleChannel.toVanillaPacket(SimpleChannel.java:129)
	at net.minecraftforge.fml.network.simple.SimpleChannel.sendTo(SimpleChannel.java:109)
	at net.minecraftforge.fml.network.simple.SimpleChannel.sendToServer(SimpleChannel.java:104)
	at me.joshua.crudetechmod.KeyBinds.onInput(KeyBinds.java:53)
	at net.minecraftforge.eventbus.ASMEventHandler_2_KeyBinds_onInput_KeyInputEvent.invoke(.dynamic)
	at net.minecraftforge.eventbus.ASMEventHandler.invoke(ASMEventHandler.java:80)
	at net.minecraftforge.eventbus.EventBus.post(EventBus.java:258)
	at net.minecraftforge.client.ForgeHooksClient.fireKeyInput(ForgeHooksClient.java:798)
	at net.minecraft.client.KeyboardListener.onKeyEvent(KeyboardListener.java:364)
	at net.minecraft.client.KeyboardListener.lambda$null$7(KeyboardListener.java:399)
	at net.minecraft.util.concurrent.ThreadTaskExecutor.execute(ThreadTaskExecutor.java:86)
	at net.minecraft.client.KeyboardListener.lambda$setupCallbacks$8(KeyboardListener.java:398)
	at org.lwjgl.glfw.GLFWKeyCallbackI.callback(GLFWKeyCallbackI.java:37)
	at org.lwjgl.system.JNI.invokeV(Native Method)
	at org.lwjgl.glfw.GLFW.glfwPollEvents(GLFW.java:3101)
	at com.mojang.blaze3d.systems.RenderSystem.flipFrame(RenderSystem.java:85)
	at net.minecraft.client.MainWindow.flipFrame(MainWindow.java:296)
	at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:983)
	at net.minecraft.client.Minecraft.run(Minecraft.java:558)
	at net.minecraft.client.main.Main.main(Main.java:177)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at net.minecraftforge.userdev.FMLUserdevClientLaunchProvider.lambda$launchService$0(FMLUserdevClientLaunchProvider.java:55)
	at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37)
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54)
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72)
	at cpw.mods.modlauncher.Launcher.run(Launcher.java:81)
	at cpw.mods.modlauncher.Launcher.main(Launcher.java:65)
	at net.minecraftforge.userdev.LaunchTesting.main(LaunchTesting.java:102)

[m[1;31m[21:31:27] [Render thread/FATAL] [minecraft/Minecraft]: Unreported exception thrown!
java.lang.IllegalArgumentException: Invalid message me.joshua.crudetechmod.key
	at net.minecraftforge.fml.network.simple.IndexedMessageCodec.build(IndexedMessageCodec.java:145) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading}
	at net.minecraftforge.fml.network.simple.SimpleChannel.encodeMessage(SimpleChannel.java:85) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading}
	at net.minecraftforge.fml.network.simple.SimpleChannel.toBuffer(SimpleChannel.java:98) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading}
	at net.minecraftforge.fml.network.simple.SimpleChannel.toVanillaPacket(SimpleChannel.java:129) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading}
	at net.minecraftforge.fml.network.simple.SimpleChannel.sendTo(SimpleChannel.java:109) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading}
	at net.minecraftforge.fml.network.simple.SimpleChannel.sendToServer(SimpleChannel.java:104) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading}
	at me.joshua.crudetechmod.KeyBinds.onInput(KeyBinds.java:53) ~[main/:?] {re:classloading}
	at net.minecraftforge.eventbus.ASMEventHandler_2_KeyBinds_onInput_KeyInputEvent.invoke(.dynamic) ~[?:?] {}
	at net.minecraftforge.eventbus.ASMEventHandler.invoke(ASMEventHandler.java:80) ~[eventbus-2.2.0-service.jar:?] {}
	at net.minecraftforge.eventbus.EventBus.post(EventBus.java:258) ~[eventbus-2.2.0-service.jar:?] {}
	at net.minecraftforge.client.ForgeHooksClient.fireKeyInput(ForgeHooksClient.java:798) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading}
	at net.minecraft.client.KeyboardListener.onKeyEvent(KeyboardListener.java:364) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.KeyboardListener.lambda$null$7(KeyboardListener.java:399) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.util.concurrent.ThreadTaskExecutor.execute(ThreadTaskExecutor.java:86) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:accesstransformer:B}
	at net.minecraft.client.KeyboardListener.lambda$setupCallbacks$8(KeyboardListener.java:398) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at org.lwjgl.glfw.GLFWKeyCallbackI.callback(GLFWKeyCallbackI.java:37) ~[lwjgl-glfw-3.2.2.jar:build 10] {}
	at org.lwjgl.system.JNI.invokeV(Native Method) ~[lwjgl-3.2.2.jar:build 10] {}
	at org.lwjgl.glfw.GLFW.glfwPollEvents(GLFW.java:3101) ~[lwjgl-glfw-3.2.2.jar:build 10] {}
	at com.mojang.blaze3d.systems.RenderSystem.flipFrame(RenderSystem.java:85) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.MainWindow.flipFrame(MainWindow.java:296) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:983) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.run(Minecraft.java:558) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.main.Main.main(Main.java:177) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_231] {}
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_231] {}
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_231] {}
	at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_231] {}
	at net.minecraftforge.userdev.FMLUserdevClientLaunchProvider.lambda$launchService$0(FMLUserdevClientLaunchProvider.java:55) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-5.1.0.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-5.1.0.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-5.1.0.jar:?] {}
	at cpw.mods.modlauncher.Launcher.run(Launcher.java:81) [modlauncher-5.1.0.jar:?] {}
	at cpw.mods.modlauncher.Launcher.main(Launcher.java:65) [modlauncher-5.1.0.jar:?] {}
	at net.minecraftforge.userdev.LaunchTesting.main(LaunchTesting.java:102) [forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {}
[m[32m[21:31:28] [Server thread/INFO] [minecraft/MinecraftServer]: Stopping server

What do you mean by register the packet?

7 hours ago, [NoOneButNo] said:

Never trust the client. Just send a packet (like what you are doing) and do the check in the packet itself.

I thought the handle was server side. How do you check in the packet itself?

TallYate · June 17, 2020

How do I do that?

TallYate · June 17, 2020

It works now

private static final String PROTOCOL_VERSION = "1";
	public static final SimpleChannel INSTANCE = NetworkRegistry.newSimpleChannel(
	    new ResourceLocation(CrudeTechMod.MOD_ID, "explosivejump"),
	    () -> PROTOCOL_VERSION,
	    PROTOCOL_VERSION::equals,
	    PROTOCOL_VERSION::equals
	);
	static int i=0;
	
	
	@SubscribeEvent
	public static void onInput (InputEvent.KeyInputEvent event) {
		if(event.getKey()==keyExplosiveJump.getKey().getKeyCode() && !keyExplosiveJumpPress && Minecraft.getInstance().player.getItemStackFromSlot(EquipmentSlotType.FEET).getItem()==ModItems.KABOOTS.get()) {
			CrudeTechMod.log("pressed");
			INSTANCE.registerMessage(i++, key.class, key::encode, key::decode, key::handle);
			INSTANCE.sendToServer(new key(0));
			keyExplosiveJumpPress=true;
		}
	}

Edited June 17, 2020 by TallYate
forgot eula

TallYate · June 17, 2020

The runServer is crashing

[m[1;31m[10:58:30] [Server thread/FATAL] [ne.mi.fm.ModLoader/LOADING]: Failed to complete lifecycle event CONSTRUCT, 1 errors found
[m[1;31m[10:58:30] [Server thread/ERROR] [minecraft/MinecraftServer]: Encountered an unexpected exception
net.minecraftforge.fml.LoadingFailedException: Loading errors encountered: [
	Crude Tech Mod (crudetech) has failed to load correctly
§7null
]
	at net.minecraftforge.fml.ModLoader.dispatchAndHandleError(ModLoader.java:218) ~[?:?] {re:classloading}
	at net.minecraftforge.fml.ModLoader.gatherAndInitializeMods(ModLoader.java:200) ~[?:?] {re:classloading}
	at net.minecraftforge.fml.server.ServerModLoader.begin(ServerModLoader.java:45) ~[?:?] {re:classloading}
	at net.minecraft.server.dedicated.DedicatedServer.init(DedicatedServer.java:125) ~[?:?] {re:classloading,pl:accesstransformer:B}
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:638) [?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at java.lang.Thread.run(Unknown Source) [?:1.8.0_231] {}
[m[1;31m[10:58:30] [Server thread/ERROR] [minecraft/MinecraftServer]: This crash report has been saved to: C:\Users\shijo\eclipse-workspace\CrudeTechMod\run\.\crash-reports\crash-2020-06-17_10.58.30-server.txt
[m[32m[10:58:30] [Server thread/INFO] [minecraft/MinecraftServer]: Stopping server
[m[32m[10:58:30] [Server thread/INFO] [minecraft/MinecraftServer]: Saving worlds
[m[1;31m[10:58:30] [Server thread/ERROR] [minecraft/MinecraftServer]: Exception stopping the server
java.lang.RuntimeException: The server has failed to initialize correctly due to mod loading errors. Examine the crash report for more details.
	at net.minecraftforge.common.DimensionManager.getWorld(DimensionManager.java:185) ~[?:?] {re:classloading}
	at net.minecraft.server.MinecraftServer.getWorld(MinecraftServer.java:1053) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.server.MinecraftServer.save(MinecraftServer.java:552) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.server.MinecraftServer.stopServer(MinecraftServer.java:587) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.server.dedicated.DedicatedServer.stopServer(DedicatedServer.java:602) ~[?:?] {re:classloading,pl:accesstransformer:B}
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:701) [?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at java.lang.Thread.run(Unknown Source) [?:1.8.0_231] {}
[m[36m[10:58:30] [Server thread/DEBUG] [ne.mi.fm.lo.FileUtils/CORE]: Found existing serverconfig directory : .\world\serverconfig
[m[36m[10:58:30] [Server thread/DEBUG] [ne.mi.fm.co.ConfigTracker/CONFIG]: Unloading configs type SERVER

TallYate · June 17, 2020

https://pastebin.com/nMHPQQU7

TallYate · June 17, 2020

debug
https://pastebin.com/AavvA1Xx

Novârch · June 17, 2020

37 minutes ago, TallYate said:

https://pastebin.com/nMHPQQU7

It seems you tried to use KeyBind on the Server, keybinds are client side, also why are you registering your packet on a key press? You should register it somewhere else, I've always done it in my main constructor.

Edited June 17, 2020 by Novârch
Noticed weird packet registration

TallYate · June 17, 2020

private void doClientStuff(final FMLClientSetupEvent event) {
		KeyBinds.registerKeyBindings();
	}

this is my main

@Mod.EventBusSubscriber(modid = CrudeTechMod.MOD_ID, bus = Bus.FORGE)
public class KeyBinds {
	
	static KeyBinding[] keyBindings = new KeyBinding[1]; 
	
	public static final KeyBinding keyExplosiveJump = new KeyBinding("Explosive Jump", GLFW.GLFW_KEY_Y, "Crude Tech");
		static Boolean keyExplosiveJumpPress = false;
	
	public static void registerKeyBindings() {
		for(int i=0; i<keyBindings.length; i++) {
			ClientRegistry.registerKeyBinding(keyBindings[i]);
		}
		
	}
	
	private static final String PROTOCOL_VERSION = "1";
	public static final SimpleChannel INSTANCE = NetworkRegistry.newSimpleChannel(
	    new ResourceLocation(CrudeTechMod.MOD_ID, "explosivejump"),
	    () -> PROTOCOL_VERSION,
	    PROTOCOL_VERSION::equals,
	    PROTOCOL_VERSION::equals
	);
	static int i=0;
	
	
	@SubscribeEvent
	public static void onInput (InputEvent.KeyInputEvent event) {
		if(event.getKey()==keyExplosiveJump.getKey().getKeyCode() && !keyExplosiveJumpPress && Minecraft.getInstance().player.getItemStackFromSlot(EquipmentSlotType.FEET).getItem()==ModItems.KABOOTS.get()) {
			CrudeTechMod.log("pressed");
			INSTANCE.registerMessage(i++, key.class, key::encode, key::decode, key::handle);
			INSTANCE.sendToServer(new key(0));
			keyExplosiveJumpPress=true;
		}
	}
	
	
	@SubscribeEvent
	public static void onTick (ClientTickEvent event) {
		if(keyExplosiveJumpPress && !keyExplosiveJump.isKeyDown()) {
			keyExplosiveJumpPress=false;
		}
	}
	
}

This is KeyBinds.java

Should I move INSTANCE.registerMessage(i++, key.class, key::encode, key::decode, key::handle);
to registerKeyBindings?

TallYate · June 17, 2020

@Mod.EventBusSubscriber(modid = CrudeTechMod.MOD_ID, bus = Bus.FORGE)
public class KeyBinds {
	
	static KeyBinding[] keyBindings = new KeyBinding[1]; 
	
	public static final KeyBinding keyExplosiveJump = new KeyBinding("Explosive Jump", GLFW.GLFW_KEY_Y, "Crude Tech");
		static Boolean keyExplosiveJumpPress = false;
	
	@OnlyIn(Dist.CLIENT)
	public static void registerKeyBindings() {
		for(int i=0; i<keyBindings.length; i++) {
			ClientRegistry.registerKeyBinding(keyBindings[i]);
		}
	}
	
	private static final String PROTOCOL_VERSION = "1";
	public static final SimpleChannel INSTANCE = NetworkRegistry.newSimpleChannel(
	    new ResourceLocation(CrudeTechMod.MOD_ID, "explosivejump"),
	    () -> PROTOCOL_VERSION,
	    PROTOCOL_VERSION::equals,
	    PROTOCOL_VERSION::equals
	);
	static int i=0;
	
	
	@OnlyIn(Dist.CLIENT)
	@SubscribeEvent
	public static void onInput (InputEvent.KeyInputEvent event) {
		if(event.getKey()==keyExplosiveJump.getKey().getKeyCode() && !keyExplosiveJumpPress && Minecraft.getInstance().player.getItemStackFromSlot(EquipmentSlotType.FEET).getItem()==ModItems.KABOOTS.get()) {
			CrudeTechMod.log("pressed");
			INSTANCE.registerMessage(i++, key.class, key::encode, key::decode, key::handle);
			INSTANCE.sendToServer(new key(0));
			keyExplosiveJumpPress=true;
		}
	}
	
	@OnlyIn(Dist.CLIENT)
	@SubscribeEvent
	public static void onTick (ClientTickEvent event) {
		if(keyExplosiveJumpPress && !keyExplosiveJump.isKeyDown()) {
			keyExplosiveJumpPress=false;
		}
	}
	
}

I heard you weren't supposed to use @OnlyIn

TallYate · June 17, 2020

what do you mean by seperate it?

TallYate · June 17, 2020

@Mod.EventBusSubscriber(modid = CrudeTechMod.MOD_ID, bus = Bus.FORGE, value = Dist.CLIENT)
public class KeyBinds {
	
static KeyBinding[] keyBindings = new KeyBinding[1]; 
	
	public static final KeyBinding keyExplosiveJump = new KeyBinding("Explosive Jump", GLFW.GLFW_KEY_Y, "Crude Tech");
		static Boolean keyExplosiveJumpPress = false;
	
	
	@SubscribeEvent
	public static void onTick (ClientTickEvent event) {
		if(keyExplosiveJumpPress && !keyExplosiveJump.isKeyDown()) {
			keyExplosiveJumpPress=false;
		}
	}
	
	@SubscribeEvent
	public static void onInput (InputEvent.KeyInputEvent event) {
		if(event.getKey()==keyExplosiveJump.getKey().getKeyCode() && !keyExplosiveJumpPress && Minecraft.getInstance().player.getItemStackFromSlot(EquipmentSlotType.FEET).getItem()==ModItems.KABOOTS.get()) {
			CrudeTechMod.log("pressed");
			Packets.INSTANCE.registerMessage(Packets.i++, key.class, key::encode, key::decode, key::handle);
			Packets.INSTANCE.sendToServer(new key(0));
			keyExplosiveJumpPress=true;
		}
	}
	
	public static void registerKeyBindings() {
		for(int i=0; i<keyBindings.length; i++) {
			ClientRegistry.registerKeyBinding(keyBindings[i]);
		}
	}
}

public class Packets {
	private static final String PROTOCOL_VERSION = "1";
	public static final SimpleChannel INSTANCE = NetworkRegistry.newSimpleChannel(
	    new ResourceLocation(CrudeTechMod.MOD_ID, "explosivejump"),
	    () -> PROTOCOL_VERSION,
	    PROTOCOL_VERSION::equals,
	    PROTOCOL_VERSION::equals
	);
	public static int i=0;
}

so where do I put the registerMessage

TallYate · June 17, 2020

Now the server starts, but when the keybind is pressed, the client crashes

TallYate · June 17, 2020

It doesn't let me put it there

here is the crash
https://pastebin.com/1xx32Fmg

TallYate · June 17, 2020

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

-- Head --
Thread: Render thread
Stacktrace:
	at java.util.ComparableTimSort.binarySort(Unknown Source)
	at java.util.ComparableTimSort.sort(Unknown Source)
	at java.util.Arrays.sort(Unknown Source)
	at net.minecraft.client.gui.widget.list.KeyBindingList.<init>(KeyBindingList.java:27)
	at net.minecraft.client.gui.screen.ControlsScreen.init(ControlsScreen.java:32)
	at net.minecraft.client.gui.screen.Screen.init(Screen.java:339)
	at net.minecraft.client.Minecraft.displayGuiScreen(Minecraft.java:833)
	at net.minecraft.client.gui.screen.OptionsScreen.lambda$init$6(OptionsScreen.java:79)
	at net.minecraft.client.gui.widget.button.Button.onPress(Button.java:16)
	at net.minecraft.client.gui.widget.button.AbstractButton.onClick(AbstractButton.java:17)
	at net.minecraft.client.gui.widget.Widget.mouseClicked(Widget.java:136)
	at net.minecraft.client.gui.INestedGuiEventHandler.mouseClicked(INestedGuiEventHandler.java:31)
	at net.minecraft.client.MouseHelper.lambda$mouseButtonCallback$0(MouseHelper.java:87)

-- Affected screen --
Details:
	Screen name: net.minecraft.client.gui.screen.OptionsScreen
Stacktrace:
	at net.minecraft.client.gui.screen.Screen.wrapScreenError(Screen.java:446)
	at net.minecraft.client.MouseHelper.mouseButtonCallback(MouseHelper.java:85)
	at net.minecraft.client.MouseHelper.lambda$null$4(MouseHelper.java:173)
	at net.minecraft.util.concurrent.ThreadTaskExecutor.execute(ThreadTaskExecutor.java:86)
	at net.minecraft.client.MouseHelper.lambda$registerCallbacks$5(MouseHelper.java:172)
	at org.lwjgl.glfw.GLFWMouseButtonCallbackI.callback(GLFWMouseButtonCallbackI.java:36)
	at org.lwjgl.system.JNI.invokeV(Native Method)
	at org.lwjgl.glfw.GLFW.glfwPollEvents(GLFW.java:3101)
	at com.mojang.blaze3d.systems.RenderSystem.flipFrame(RenderSystem.java:89)

-- Affected level --
Details:
	All players: 1 total; [ClientPlayerEntity['Dev'/281, l='MpServer', x=-250.08, y=66.00, z=75.47]]
	Chunk stats: Client Chunk Cache: 729, 462
	Level dimension: DimensionType{minecraft:overworld}
	Level name: MpServer
	Level seed: -7738337295078555559
	Level generator: ID 00 - default, ver 1. Features enabled: false
	Level generator options: {}
	Level spawn location: World: (-256,64,65), Chunk: (at 0,4,1 in -16,4; contains blocks -256,0,64 to -241,255,79), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
	Level time: 13819 game time, 13819 day time
	Known server brands: 
	Level was modded: false
	Level storage version: 0x00000 - Unknown?
	Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false)
	Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
	Server brand: forge
	Server type: Non-integrated multiplayer server
Stacktrace:
	at net.minecraft.client.world.ClientWorld.fillCrashReport(ClientWorld.java:457)
	at net.minecraft.client.Minecraft.addGraphicsAndWorldToCrashReport(Minecraft.java:1839)
	at net.minecraft.client.Minecraft.run(Minecraft.java:572)
	at net.minecraft.client.main.Main.main(Main.java:177)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at net.minecraftforge.userdev.FMLUserdevClientLaunchProvider.lambda$launchService$0(FMLUserdevClientLaunchProvider.java:55)
	at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37)
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54)
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72)
	at cpw.mods.modlauncher.Launcher.run(Launcher.java:81)
	at cpw.mods.modlauncher.Launcher.main(Launcher.java:65)
	at net.minecraftforge.userdev.LaunchTesting.main(LaunchTesting.java:102)

-- System Details --
Details:
	Minecraft Version: 1.15.2
	Minecraft Version ID: 1.15.2
	Operating System: Windows 10 (amd64) version 10.0
	Java Version: 1.8.0_231, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 1070229488 bytes (1020 MB) / 3440377856 bytes (3281 MB) up to 7621050368 bytes (7268 MB)
	CPUs: 6
	JVM Flags: 1 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump
	ModLauncher: 5.1.0+69+master.79f13f7
	ModLauncher launch target: fmluserdevclient
	ModLauncher naming: mcp
	ModLauncher services: 
		/eventbus-2.2.0-service.jar eventbus PLUGINSERVICE 
		/forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-launcher.jar object_holder_definalize PLUGINSERVICE 
		/forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-launcher.jar runtime_enum_extender PLUGINSERVICE 
		/accesstransformers-2.1.1-shadowed.jar accesstransformer PLUGINSERVICE 
		/forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-launcher.jar capability_inject_definalize PLUGINSERVICE 
		/forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-launcher.jar runtimedistcleaner PLUGINSERVICE 
		/forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-launcher.jar fml TRANSFORMATIONSERVICE 
	FML: 31.2
	Forge: net.minecraftforge:31.2.0
	FML Language Providers: 
		javafml@31.2
		minecraft@1
	Mod List: 
		client-extra.jar Minecraft {minecraft@1.15.2 DONE}
		forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar Forge {forge@31.2.0 DONE}
		main Crude Tech Mod {crudetech@NONE DONE}
	Launched Version: MOD_DEV
	Backend library: LWJGL version 3.2.2 build 10
	Backend API: GeForce GTX 1060 6GB/PCIe/SSE2 GL version 4.6.0 NVIDIA 432.00, 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)
	Resource Packs: 
	Current Language: English (US)
	CPU: 6x Intel(R) Core(TM) i5-9600K CPU @ 3.70GHz
[17Jun2020 13:11:17.796] [Render thread/INFO] [STDOUT/]: [net.minecraft.util.registry.Bootstrap:printToSYSOUT:110]: #@!@# Game crashed! Crash report saved to: #@!@# C:\Users\shijo\eclipse-workspace\CrudeTechMod\run\.\crash-reports\crash-2020-06-17_13.11.17-client.txt

I moved the registerMessage to FMLCommonSetupEvent. Now,
pressing the keybind causes lag
Going to options crashed the client

TallYate · June 17, 2020

[m[32m[13:36:29] [Realms Notification Availability checker #1/INFO] [mojang/RealmsClient]: Could not authorize you against Realms server: Invalid session id
[m[1;31m[13:36:33] [Render thread/ERROR] [minecraft/GameSettings]: Failed to save options
java.lang.NullPointerException: null
	at net.minecraft.client.GameSettings.saveOptions(GameSettings.java:633) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.gui.screen.OptionsScreen.removed(OptionsScreen.java:114) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.displayGuiScreen(Minecraft.java:822) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.gui.screen.OptionsScreen.lambda$init$6(OptionsScreen.java:79) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.gui.widget.button.Button.onPress(Button.java:16) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.gui.widget.button.AbstractButton.onClick(AbstractButton.java:17) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.gui.widget.Widget.mouseClicked(Widget.java:136) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.gui.INestedGuiEventHandler.mouseClicked(INestedGuiEventHandler.java:31) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.MouseHelper.lambda$mouseButtonCallback$0(MouseHelper.java:87) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.gui.screen.Screen.wrapScreenError(Screen.java:446) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.MouseHelper.mouseButtonCallback(MouseHelper.java:85) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.MouseHelper.lambda$null$4(MouseHelper.java:173) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.util.concurrent.ThreadTaskExecutor.execute(ThreadTaskExecutor.java:86) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:accesstransformer:B}
	at net.minecraft.client.MouseHelper.lambda$registerCallbacks$5(MouseHelper.java:172) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at org.lwjgl.glfw.GLFWMouseButtonCallbackI.callback(GLFWMouseButtonCallbackI.java:36) ~[lwjgl-glfw-3.2.2.jar:build 10] {}
	at org.lwjgl.system.JNI.invokeV(Native Method) ~[lwjgl-3.2.2.jar:build 10] {}
	at org.lwjgl.glfw.GLFW.glfwPollEvents(GLFW.java:3101) ~[lwjgl-glfw-3.2.2.jar:build 10] {}
	at com.mojang.blaze3d.systems.RenderSystem.flipFrame(RenderSystem.java:89) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.MainWindow.flipFrame(MainWindow.java:296) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:983) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.run(Minecraft.java:558) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.main.Main.main(Main.java:177) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_231] {}
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_231] {}
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_231] {}
	at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_231] {}
	at net.minecraftforge.userdev.FMLUserdevClientLaunchProvider.lambda$launchService$0(FMLUserdevClientLaunchProvider.java:55) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-5.1.0.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-5.1.0.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-5.1.0.jar:?] {}
	at cpw.mods.modlauncher.Launcher.run(Launcher.java:81) [modlauncher-5.1.0.jar:?] {}
	at cpw.mods.modlauncher.Launcher.main(Launcher.java:65) [modlauncher-5.1.0.jar:?] {}
	at net.minecraftforge.userdev.LaunchTesting.main(LaunchTesting.java:102) [forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {}
[m[1;31m[13:36:34] [Render thread/ERROR] [minecraft/GameSettings]: Failed to save options
java.lang.NullPointerException: null
	at net.minecraft.client.GameSettings.saveOptions(GameSettings.java:633) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.gui.screen.SettingsScreen.removed(SettingsScreen.java:20) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.displayGuiScreen(Minecraft.java:822) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.updateScreenTick(Minecraft.java:1766) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.unloadWorld(Minecraft.java:1739) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.freeMemory(Minecraft.java:1057) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.run(Minecraft.java:573) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.main.Main.main(Main.java:177) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_231] {}
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_231] {}
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_231] {}
	at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_231] {}
	at net.minecraftforge.userdev.FMLUserdevClientLaunchProvider.lambda$launchService$0(FMLUserdevClientLaunchProvider.java:55) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-5.1.0.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-5.1.0.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-5.1.0.jar:?] {}
	at cpw.mods.modlauncher.Launcher.run(Launcher.java:81) [modlauncher-5.1.0.jar:?] {}
	at cpw.mods.modlauncher.Launcher.main(Launcher.java:65) [modlauncher-5.1.0.jar:?] {}
	at net.minecraftforge.userdev.LaunchTesting.main(LaunchTesting.java:102) [forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {}
[m[1;31m[13:36:34] [Render thread/FATAL] [minecraft/Minecraft]: Reported exception thrown!
net.minecraft.crash.ReportedException: mouseClicked event handler
	at net.minecraft.client.gui.screen.Screen.wrapScreenError(Screen.java:453) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.MouseHelper.mouseButtonCallback(MouseHelper.java:85) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.MouseHelper.lambda$null$4(MouseHelper.java:173) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.util.concurrent.ThreadTaskExecutor.execute(ThreadTaskExecutor.java:86) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:accesstransformer:B}
	at net.minecraft.client.MouseHelper.lambda$registerCallbacks$5(MouseHelper.java:172) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at org.lwjgl.glfw.GLFWMouseButtonCallbackI.callback(GLFWMouseButtonCallbackI.java:36) ~[lwjgl-glfw-3.2.2.jar:build 10] {}
	at org.lwjgl.system.JNI.invokeV(Native Method) ~[lwjgl-3.2.2.jar:build 10] {}
	at org.lwjgl.glfw.GLFW.glfwPollEvents(GLFW.java:3101) ~[lwjgl-glfw-3.2.2.jar:build 10] {}
	at com.mojang.blaze3d.systems.RenderSystem.flipFrame(RenderSystem.java:89) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.MainWindow.flipFrame(MainWindow.java:296) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:983) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.run(Minecraft.java:558) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.main.Main.main(Main.java:177) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_231] {}
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_231] {}
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_231] {}
	at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_231] {}
	at net.minecraftforge.userdev.FMLUserdevClientLaunchProvider.lambda$launchService$0(FMLUserdevClientLaunchProvider.java:55) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-5.1.0.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-5.1.0.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-5.1.0.jar:?] {}
	at cpw.mods.modlauncher.Launcher.run(Launcher.java:81) [modlauncher-5.1.0.jar:?] {}
	at cpw.mods.modlauncher.Launcher.main(Launcher.java:65) [modlauncher-5.1.0.jar:?] {}
	at net.minecraftforge.userdev.LaunchTesting.main(LaunchTesting.java:102) [forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {}
Caused by: java.lang.NullPointerException
	at java.util.ComparableTimSort.binarySort(Unknown Source) ~[?:1.8.0_231] {}
	at java.util.ComparableTimSort.sort(Unknown Source) ~[?:1.8.0_231] {}
	at java.util.Arrays.sort(Unknown Source) ~[?:1.8.0_231] {}
	at net.minecraft.client.gui.widget.list.KeyBindingList.<init>(KeyBindingList.java:27) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.gui.screen.ControlsScreen.init(ControlsScreen.java:32) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.gui.screen.Screen.init(Screen.java:339) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.displayGuiScreen(Minecraft.java:833) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.gui.screen.OptionsScreen.lambda$init$6(OptionsScreen.java:79) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.gui.widget.button.Button.onPress(Button.java:16) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.gui.widget.button.AbstractButton.onClick(AbstractButton.java:17) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.gui.widget.Widget.mouseClicked(Widget.java:136) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.gui.INestedGuiEventHandler.mouseClicked(INestedGuiEventHandler.java:31) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.MouseHelper.lambda$mouseButtonCallback$0(MouseHelper.java:87) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.gui.screen.Screen.wrapScreenError(Screen.java:446) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	... 23 more
[m[32m[13:36:34] [Render thread/INFO] [STDOUT/]: [net.minecraft.util.registry.Bootstrap:printToSYSOUT:110]: ---- Minecraft Crash Report ----
// You're mean.

Time: 17/06/20 1:36 PM
Description: mouseClicked event handler

java.lang.NullPointerException: mouseClicked event handler
	at java.util.ComparableTimSort.binarySort(Unknown Source) ~[?:1.8.0_231] {}
	at java.util.ComparableTimSort.sort(Unknown Source) ~[?:1.8.0_231] {}
	at java.util.Arrays.sort(Unknown Source) ~[?:1.8.0_231] {}
	at net.minecraft.client.gui.widget.list.KeyBindingList.<init>(KeyBindingList.java:27) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.gui.screen.ControlsScreen.init(ControlsScreen.java:32) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.gui.screen.Screen.init(Screen.java:339) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.displayGuiScreen(Minecraft.java:833) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.gui.screen.OptionsScreen.lambda$init$6(OptionsScreen.java:79) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.gui.widget.button.Button.onPress(Button.java:16) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.gui.widget.button.AbstractButton.onClick(AbstractButton.java:17) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.gui.widget.Widget.mouseClicked(Widget.java:136) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.gui.INestedGuiEventHandler.mouseClicked(INestedGuiEventHandler.java:31) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.MouseHelper.lambda$mouseButtonCallback$0(MouseHelper.java:87) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.gui.screen.Screen.wrapScreenError(Screen.java:446) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.MouseHelper.mouseButtonCallback(MouseHelper.java:85) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.MouseHelper.lambda$null$4(MouseHelper.java:173) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.util.concurrent.ThreadTaskExecutor.execute(ThreadTaskExecutor.java:86) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:accesstransformer:B}
	at net.minecraft.client.MouseHelper.lambda$registerCallbacks$5(MouseHelper.java:172) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at org.lwjgl.glfw.GLFWMouseButtonCallbackI.callback(GLFWMouseButtonCallbackI.java:36) ~[lwjgl-glfw-3.2.2.jar:build 10] {}
	at org.lwjgl.system.JNI.invokeV(Native Method) ~[lwjgl-3.2.2.jar:build 10] {}
	at org.lwjgl.glfw.GLFW.glfwPollEvents(GLFW.java:3101) ~[lwjgl-glfw-3.2.2.jar:build 10] {}
	at com.mojang.blaze3d.systems.RenderSystem.flipFrame(RenderSystem.java:89) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.MainWindow.flipFrame(MainWindow.java:296) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:983) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.run(Minecraft.java:558) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.main.Main.main(Main.java:177) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_231] {}
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_231] {}
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_231] {}
	at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_231] {}
	at net.minecraftforge.userdev.FMLUserdevClientLaunchProvider.lambda$launchService$0(FMLUserdevClientLaunchProvider.java:55) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-5.1.0.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-5.1.0.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-5.1.0.jar:?] {}
	at cpw.mods.modlauncher.Launcher.run(Launcher.java:81) [modlauncher-5.1.0.jar:?] {}
	at cpw.mods.modlauncher.Launcher.main(Launcher.java:65) [modlauncher-5.1.0.jar:?] {}
	at net.minecraftforge.userdev.LaunchTesting.main(LaunchTesting.java:102) [forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {}

Edited June 17, 2020 by TallYate
added the stuff above

TallYate · June 17, 2020

@Mod.EventBusSubscriber(modid = CrudeTechMod.MOD_ID, bus = Bus.FORGE, value = Dist.CLIENT)
public class KeyBinds {

	static KeyBinding[] keyBindings = new KeyBinding[1];

	public static final KeyBinding keyExplosiveJump = new KeyBinding("description", GLFW.GLFW_KEY_Y, "tech");
		static Boolean keyExplosiveJumpPress = false;

	@SubscribeEvent
	public static void onTick(ClientTickEvent event) {
		if (keyExplosiveJumpPress && !keyExplosiveJump.isKeyDown()) {
			keyExplosiveJumpPress = false;
		}
	}

	@SubscribeEvent
	public static void onInput(InputEvent.KeyInputEvent event) {
		if (event.getKey() == keyExplosiveJump.getKey().getKeyCode() && !keyExplosiveJumpPress
				&& Minecraft.getInstance().player.getItemStackFromSlot(EquipmentSlotType.FEET)
						.getItem() == ModItems.KABOOTS.get()) {
			CrudeTechMod.log("pressed");
			Packets.INSTANCE.sendToServer(new key(0));
			keyExplosiveJumpPress = true;
		}
	}

	public static void registerKeyBindings() {
		for (int i = 0; i < keyBindings.length; i++) {
			ClientRegistry.registerKeyBinding(keyBindings[i]);
		}
	}
}

public class Packets {
		private static final String PROTOCOL_VERSION = "1";
		public static final SimpleChannel INSTANCE = NetworkRegistry.newSimpleChannel(
		    new ResourceLocation(CrudeTechMod.MOD_ID, "main"),
		    () -> PROTOCOL_VERSION,
		    PROTOCOL_VERSION::equals,
		    PROTOCOL_VERSION::equals
		);
		public static int i=0;
}

private void setup(final FMLCommonSetupEvent event) {
		Packets.INSTANCE.registerMessage(Packets.i++, key.class, key::encode, key::decode, key::handle);
	}
	
	private void doClientStuff(final FMLClientSetupEvent event) {
		KeyBinds.registerKeyBindings();
	}

If you happen to find what I did wrong, please tell me!

TallYate · June 17, 2020

The problem was that I made the array at the beginning, but then used keyExplosiveJump instead of array[0]

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