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[SOLVED]Null Pointer Exception when registering tile entity

Atm2222

By Atm2222
in Modder Support

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Atm2222 Tree Puncher

Atm2222

Posted
Posted (edited)

Hello, I am following along with McJty's 1.12 modding tutorials and am at the point where I am creating a Tile Entity. I have followed the tutorial and there are no errors in IntelliJ. However, when I try to load the game it crashes.

I was stupid and forgot to change something from his tutorial to fit my mod. 

Crash Log:

Spoiler

---- Minecraft Crash Report ----
// Ooh. Shiny.

Time: 7/15/17 5:49 PM
Description: Initializing game

java.lang.NullPointerException: Initializing game
    at atm2222.firstmod.proxy.CommonProxy.registerItems(CommonProxy.java:60)
    at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_5_CommonProxy_registerItems_Register.invoke(.dynamic)
    at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:90)
    at net.minecraftforge.fml.common.eventhandler.EventBus$1.invoke(EventBus.java:143)
    at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:179)
    at net.minecraftforge.registries.GameData.fireRegistryEvents(GameData.java:723)
    at net.minecraftforge.fml.common.Loader.preinitializeMods(Loader.java:605)
    at net.minecraftforge.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:266)
    at net.minecraft.client.Minecraft.init(Minecraft.java:508)
    at net.minecraft.client.Minecraft.run(Minecraft.java:416)
    at net.minecraft.client.main.Main.main(Main.java:118)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    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(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at net.minecraftforge.gradle.GradleStartCommon.launch(GradleStartCommon.java:97)
    at GradleStart.main(GradleStart.java:26)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)


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

-- Head --
Thread: Client thread
Stacktrace:
    at atm2222.firstmod.proxy.CommonProxy.registerItems(CommonProxy.java:60)
    at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_5_CommonProxy_registerItems_Register.invoke(.dynamic)
    at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:90)
    at net.minecraftforge.fml.common.eventhandler.EventBus$1.invoke(EventBus.java:143)
    at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:179)
    at net.minecraftforge.registries.GameData.fireRegistryEvents(GameData.java:723)
    at net.minecraftforge.fml.common.Loader.preinitializeMods(Loader.java:605)
    at net.minecraftforge.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:266)
    at net.minecraft.client.Minecraft.init(Minecraft.java:508)

-- Initialization --
Details:
Stacktrace:
    at net.minecraft.client.Minecraft.run(Minecraft.java:416)
    at net.minecraft.client.main.Main.main(Main.java:118)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    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(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at net.minecraftforge.gradle.GradleStartCommon.launch(GradleStartCommon.java:97)
    at GradleStart.main(GradleStart.java:26)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)

-- System Details --
Details:
    Minecraft Version: 1.12
    Operating System: Windows 10 (amd64) version 10.0
    Java Version: 1.8.0_73, Oracle Corporation
    Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
    Memory: 819777688 bytes (781 MB) / 1007157248 bytes (960 MB) up to 3808428032 bytes (3632 MB)
    JVM Flags: 0 total; 
    IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
    FML: MCP 9.40 Powered by Forge 14.21.1.2413 5 mods loaded, 5 mods active
    States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored
    UCH    minecraft{1.12} [Minecraft] (minecraft.jar) 
    UCH    mcp{9.19} [Minecraft Coder Pack] (minecraft.jar) 
    UCH    FML{8.0.99.99} [Forge Mod Loader] (forgeSrc-1.12-14.21.1.2413.jar) 
    UCH    forge{14.21.1.2413} [Minecraft Forge] (forgeSrc-1.12-14.21.1.2413.jar) 
    UCH    firstmod{0.0.1} [Atm2222s First Mod] (FirstMod_main) 
    Loaded coremods (and transformers): 
    GL info: ' Vendor: 'ATI Technologies Inc.' Version: '4.5.13474 Compatibility Profile Context 22.19.162.4' Renderer: 'AMD Radeon R9 200 Series'
    Launched Version: 1.12
    LWJGL: 2.9.4
    OpenGL: AMD Radeon R9 200 Series GL version 4.5.13474 Compatibility Profile Context 22.19.162.4, 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: Yes
    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 Intel(R) Core(TM) i5-4690K CPU @ 3.50GHz

 

From this log, I know it occurs on line 60 or my CommonProxy Method.

CommonProxy:

Spoiler 

package atm2222.firstmod.proxy;

import atm2222.firstmod.Config;
import atm2222.firstmod.FirstMod;
import atm2222.firstmod.ModBlocks;
import atm2222.firstmod.blocks.FirstBlock;
import atm2222.firstmod.blocks.datablock.DataBlock;
import atm2222.firstmod.blocks.datablock.DataTileEntity;
import atm2222.firstmod.items.FirstItem;
import net.minecraft.block.Block;
import net.minecraft.item.Item;
import net.minecraft.item.ItemBlock;
import net.minecraftforge.common.config.Configuration;
import net.minecraftforge.event.RegistryEvent;
import net.minecraftforge.fml.common.Mod;
import net.minecraftforge.fml.common.event.FMLInitializationEvent;
import net.minecraftforge.fml.common.event.FMLPostInitializationEvent;
import net.minecraftforge.fml.common.event.FMLPreInitializationEvent;
import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
import net.minecraftforge.fml.common.registry.GameRegistry;

import java.io.File;

@Mod.EventBusSubscriber
public class CommonProxy {

    // Config instance
    public static Configuration config;

    public void preInit(FMLPreInitializationEvent e) {
        File directory = e.getModConfigurationDirectory();
        config = new Configuration(new File(directory.getPath(), "modtut.cfg"));
        Config.readConfig();
    }

    public void init(FMLInitializationEvent e) {
    }

    public void postInit(FMLPostInitializationEvent e) {
        if (config.hasChanged()) {
            config.save();
        }
    }

    @SubscribeEvent
    public static void registerBlocks(RegistryEvent.Register<Block> event) {
        event.getRegistry().register(new FirstBlock());

        event.getRegistry().register(new DataBlock());
        GameRegistry.registerTileEntity(DataTileEntity.class, FirstMod.MODID + "_datablock");
    }

    @SubscribeEvent
    public static void registerItems(RegistryEvent.Register<Item> event) {
        event.getRegistry().register(new ItemBlock(ModBlocks.firstBlock).setRegistryName(ModBlocks.firstBlock.getRegistryName()));

        event.getRegistry().register(new ItemBlock(ModBlocks.dataBlock).setRegistryName(ModBlocks.dataBlock.getRegistryName()));


        event.getRegistry().register(new FirstItem());

    }
}
 

Here are the two files pertaining to the TileEntity.

Spoiler 

package atm2222.firstmod.blocks.datablock;

import atm2222.firstmod.FirstMod;
import net.minecraft.block.Block;
import net.minecraft.block.ITileEntityProvider;
import net.minecraft.block.material.Material;
import net.minecraft.block.properties.PropertyDirection;
import net.minecraft.block.state.BlockStateContainer;
import net.minecraft.block.state.IBlockState;
import net.minecraft.client.renderer.block.model.ModelResourceLocation;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.init.Items;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.EnumFacing;
import net.minecraft.util.EnumHand;
import net.minecraft.util.math.BlockPos;
import net.minecraft.util.text.TextComponentString;
import net.minecraft.util.text.TextFormatting;
import net.minecraft.world.World;
import net.minecraftforge.client.model.ModelLoader;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;

import java.util.List;

public class DataBlock extends Block implements ITileEntityProvider{

    public static final PropertyDirection FACING = PropertyDirection.create("facing", EnumFacing.Plane.HORIZONTAL);

    public DataBlock() {
        super(Material.ROCK);
        setUnlocalizedName(FirstMod.MODID + ".datablock");
        setRegistryName("datablock");
    }

    @SideOnly(Side.CLIENT)
    public void initModel() {
        ModelLoader.setCustomModelResourceLocation(Item.getItemFromBlock(this), 0, new ModelResourceLocation(getRegistryName(), "inventory"));
    }

    @Override
    public TileEntity createNewTileEntity(World worldIn, int meta) {
        return new DataTileEntity();
    }

    private DataTileEntity getTE(World world, BlockPos pos) {
        return (DataTileEntity) world.getTileEntity(pos);
    }

    //@Override
    public boolean onBlockActivated(World world, BlockPos pos, IBlockState state, EntityPlayer player, EnumHand hand,
    ItemStack heldItem, EnumFacing side, float hitX, float hitY, float hitZ) {
        if (!world.isRemote) {
            // We only count on the server side.

            if (side == state.getValue(FACING)) {
                int counter;
                if (hitY < .5f) {
                    counter = getTE(world, pos).decrement();
                } else {
                    counter = getTE(world, pos).increment();
                }
                player.sendStatusMessage(new TextComponentString(TextFormatting.GREEN + "Counter: " + counter), false);
            }
        }
        // Return true also on the client to make sure that MC knows we handled this and will not try to place
        // a block on the client
        return true;
    }

    @Override
    public void onBlockPlacedBy(World world, BlockPos pos, IBlockState state, EntityLivingBase placer, ItemStack stack) {
        world.setBlockState(pos, state.withProperty(FACING, placer.getHorizontalFacing().getOpposite()), 2);
    }

    @Override
    public IBlockState getStateFromMeta(int meta) {
        // Since we only allow horizontal rotation we need only 2 bits for facing. North, South, West, East start at index 2 so we have to add 2 here.
        return getDefaultState().withProperty(FACING, EnumFacing.getFront((meta & 3) + 2));
    }

    @Override
    public int getMetaFromState(IBlockState state) {
        // Since we only allow horizontal rotation we need only 2 bits for facing. North, South, West, East start at index 2 so we have to subtract 2 here.
        return state.getValue(FACING).getIndex()-2;
    }

    @Override
    protected BlockStateContainer createBlockState() {
        return new BlockStateContainer(this, FACING);
    }
}
 
Spoiler 

package atm2222.firstmod.blocks.datablock;

import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.tileentity.TileEntity;

public class DataTileEntity extends TileEntity{

    private int counter = 0;

    public int decrement() {
        counter--;
        markDirty();
        return counter;
    }

    public int increment() {
        counter++;
        markDirty();
        return counter;
    }

    @Override
    public void readFromNBT(NBTTagCompound compound) {
        super.readFromNBT(compound);
        counter = compound.getInteger("counter");
    }

    @Override
    public NBTTagCompound writeToNBT(NBTTagCompound compound) {
        super.writeToNBT(compound);
        compound.setInteger("counter", counter);
        return compound;
    }
}
 

Here is another possibly important class:

Spoiler 

package atm2222.firstmod;

import atm2222.firstmod.blocks.FirstBlock;
import atm2222.firstmod.blocks.datablock.DataBlock;
import net.minecraftforge.fml.common.registry.GameRegistry;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;

public class ModBlocks {

    @SideOnly(Side.CLIENT)
    public static void initModels() {
        dataBlock.initModel();
    }
    @GameRegistry.ObjectHolder("firstmod:firstblock")
    public static FirstBlock firstBlock;

    @GameRegistry.ObjectHolder("modtut:datablock")
    public static DataBlock dataBlock;


}
 

If anybody knows of any common causes of this issue, please tell me!

 

Thanks!!

Edited by Atm2222
Problem Solved
Atm2222 Tree Puncher

Atm2222

Posted
  • Author
Posted

Oh, God thanks. I can't believe I was so stupid to not do that. modtut is mcjty's name, firstmod is mine. Thanks for helping by giving it a second look. :)

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