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Java.lang.NullpointerException

Nxty

By Nxty
in Modder Support

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Nxty Tree Puncher

Nxty

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Posted (edited)

 

 

I have my main class, and it registers the adCommand class,  

package nxty.test;

import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

import net.minecraft.client.Minecraft;
import net.minecraft.util.ChatComponentText;
import net.minecraftforge.client.ClientCommandHandler;
import net.minecraftforge.common.MinecraftForge;
import net.minecraftforge.fml.common.Mod;
import net.minecraftforge.fml.common.Mod.EventHandler;
import net.minecraftforge.fml.common.event.FMLInitializationEvent;
import nxty.util.AutoDenyThreadFactory;

@Mod(modid = "autoDeny", version = "1.0", clientSideOnly = true, acceptedMinecraftVersions = "1.8.9")
public class Main {
	public static final Logger logger = LogManager.getLogger("autoDeny");
	public static Minecraft mc = Minecraft.getMinecraft();
	
	public static final ExecutorService Threadpool;
	
	static {
		Threadpool = Executors.newCachedThreadPool(new AutoDenyThreadFactory());
	}
	
	@Mod.Instance
	private static Main instance;
	
	@EventHandler
	public void init(FMLInitializationEvent event) {
		ClientCommandHandler.instance.registerCommand(new adCommand());	
		MinecraftForge.EVENT_BUS.register(new sendMessage());
	}
	
	public static Main getInstance() {
		return instance;
	}
	
	public void sendMessage(String message, Object... replacements) {
		if(mc.thePlayer == null)return;
		
		try {
			message = String.format(message, replacements);
		} catch(Exception ex) {
			mc.thePlayer.addChatComponentMessage(new ChatComponentText(message));
		}
	}
}

and i have my adCommand class:
  

package nxty.test;

import java.util.List;

import net.minecraft.command.CommandException;
import net.minecraft.command.ICommand;
import net.minecraft.command.ICommandSender;
import net.minecraft.util.BlockPos;

public class adCommand implements ICommand{
	public static boolean toggle = true;
	@Override
	public int compareTo(ICommand arg0) {
		// TODO Auto-generated method stub
		return 0;
	}

	@Override
	public String getCommandName() {
		// TODO Auto-generated method stub
		return "autodeny";
	}

	@Override
	public String getCommandUsage(ICommandSender sender) {
		// TODO Auto-generated method stub
		return "Usage: /" + getCommandName() + " [on/off]";
	}

	@Override
	public List<String> getCommandAliases() {
		// TODO Auto-generated method stub
		return null;
	}

	@Override
	public void processCommand(ICommandSender sender, String[] args) throws CommandException {
		// TODO Auto-generated method stub
		if(args[0].equals("on")) {
			toggle = true;
			Main.getInstance().sendMessage("AutoDeny is now toggled on.");
		} else if(args[0].equals("off")) {
			toggle = false;
			Main.getInstance().sendMessage("AutoDeny is now toggled off.");
		}
	}

	@Override
	public boolean canCommandSenderUseCommand(ICommandSender sender) {
		// TODO Auto-generated method stub
		return true;
	}

	@Override
	public List<String> addTabCompletionOptions(ICommandSender sender, String[] args, BlockPos pos) {
		// TODO Auto-generated method stub
		return null;
	}

	@Override
	public boolean isUsernameIndex(String[] args, int index) {
		// TODO Auto-generated method stub
		return false;
	}
	
}

and when the game loads when i try to run it, i get this crash report 

---- Minecraft Crash Report ----
// You're mean.

Time: 4/14/18 3:02 PM
Description: Initializing game

java.lang.NullPointerException: Initializing game
	at net.minecraft.command.CommandHandler.registerCommand(CommandHandler.java:134)
	at nxty.test.Main.init(Main.java:34)
	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.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:560)
	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 com.google.common.eventbus.EventSubscriber.handleEvent(EventSubscriber.java:74)
	at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47)
	at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322)
	at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304)
	at com.google.common.eventbus.EventBus.post(EventBus.java:275)
	at net.minecraftforge.fml.common.LoadController.sendEventToModContainer(LoadController.java:211)
	at net.minecraftforge.fml.common.LoadController.propogateStateMessage(LoadController.java:189)
	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 com.google.common.eventbus.EventSubscriber.handleEvent(EventSubscriber.java:74)
	at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47)
	at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322)
	at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304)
	at com.google.common.eventbus.EventBus.post(EventBus.java:275)
	at net.minecraftforge.fml.common.LoadController.distributeStateMessage(LoadController.java:118)
	at net.minecraftforge.fml.common.Loader.initializeMods(Loader.java:737)
	at net.minecraftforge.fml.client.FMLClientHandler.finishMinecraftLoading(FMLClientHandler.java:310)
	at net.minecraft.client.Minecraft.startGame(Minecraft.java:532)
	at net.minecraft.client.Minecraft.run(Minecraft.java:360)
	at net.minecraft.client.main.Main.main(Main.java:116)
	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.minecraft.launchwrapper.Launch.launch(Launch.java:135)
	at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
	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.gradle.GradleStartCommon.launch(GradleStartCommon.java:97)
	at GradleStart.main(GradleStart.java:26)


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

-- Head --
Stacktrace:
	at net.minecraft.command.CommandHandler.registerCommand(CommandHandler.java:134)
	at nxty.test.Main.init(Main.java:34)
	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.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:560)
	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 com.google.common.eventbus.EventSubscriber.handleEvent(EventSubscriber.java:74)
	at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47)
	at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322)
	at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304)
	at com.google.common.eventbus.EventBus.post(EventBus.java:275)
	at net.minecraftforge.fml.common.LoadController.sendEventToModContainer(LoadController.java:211)
	at net.minecraftforge.fml.common.LoadController.propogateStateMessage(LoadController.java:189)
	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 com.google.common.eventbus.EventSubscriber.handleEvent(EventSubscriber.java:74)
	at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47)
	at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322)
	at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304)
	at com.google.common.eventbus.EventBus.post(EventBus.java:275)
	at net.minecraftforge.fml.common.LoadController.distributeStateMessage(LoadController.java:118)
	at net.minecraftforge.fml.common.Loader.initializeMods(Loader.java:737)
	at net.minecraftforge.fml.client.FMLClientHandler.finishMinecraftLoading(FMLClientHandler.java:310)
	at net.minecraft.client.Minecraft.startGame(Minecraft.java:532)

-- Initialization --
Details:
Stacktrace:
	at net.minecraft.client.Minecraft.run(Minecraft.java:360)
	at net.minecraft.client.main.Main.main(Main.java:116)
	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.minecraft.launchwrapper.Launch.launch(Launch.java:135)
	at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
	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.gradle.GradleStartCommon.launch(GradleStartCommon.java:97)
	at GradleStart.main(GradleStart.java:26)

-- System Details --
Details:
	Minecraft Version: 1.8.9
	Operating System: Windows 8.1 (amd64) version 6.3
	Java Version: 1.8.0_161, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 865954920 bytes (825 MB) / 1038876672 bytes (990 MB) up to 1038876672 bytes (990 MB)
	JVM Flags: 3 total; -Xincgc -Xmx1024M -Xms1024M
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	FML: MCP 9.19 Powered by Forge 11.15.1.2318 4 mods loaded, 4 mods active
	States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored
	UCHI	mcp{9.19} [Minecraft Coder Pack] (minecraft.jar) 
	UCHI	FML{8.0.99.99} [Forge Mod Loader] (forgeSrc-1.8.9-11.15.1.2318-1.8.9.jar) 
	UCHI	Forge{11.15.1.2318} [Minecraft Forge] (forgeSrc-1.8.9-11.15.1.2318-1.8.9.jar) 
	UCHE	autoDeny{1.0} [autoDeny] (bin) 
	Loaded coremods (and transformers): 
	GL info: ' Vendor: 'ATI Technologies Inc.' Version: '4.5.13399 Compatibility Profile Context 15.200.1062.1004' Renderer: 'AMD Radeon HD 7800 Series'
	Launched Version: 1.8.9
	LWJGL: 2.9.4
	OpenGL: AMD Radeon HD 7800 Series GL version 4.5.13399 Compatibility Profile Context 15.200.1062.1004, ATI Technologies Inc.
	GL Caps: Using GL 1.3 multitexturing.
Using GL 1.3 texture combiners.
Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported.
Shaders are available because OpenGL 2.1 is supported.
VBOs are available because OpenGL 1.5 is supported.

	Using VBOs: No
	Is Modded: Definitely; Client brand changed to 'fml,forge'
	Type: Client (map_client.txt)
	Resource Packs: 
	Current Language: English (US)
	Profiler Position: N/A (disabled)
	CPU: 4x AMD A8-3870 APU with Radeon(tm) HD Graphics

There is no error in eclipse, and I really dont know what im doing wrong.

I'm making a 1.8.9 mod because its a hypixel based mod, there is more files to the mod but this is where the error occurs 

Edited by Nxty
Nxty Tree Puncher

Nxty

Posted
  • Author
Posted (edited)

Still getting the same error

The error is occuring where i register the command class. 

Edited by Nxty
Nxty Tree Puncher

Nxty

Posted
  • Author
Posted

Ok my problem was that i was returning "null" on the "getCommandAliases" thing and the registry needs that to work. Sry i need to think about it before posting :\

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