AcidAssassin

Thank you, this fixed my issue

When I try to get the registry object of my block using RegistryObject#get() I get a null pointer exception. If I remove the reference to the object, the block appears in game without any issues. Error Log: ---- Minecraft Crash Report ---- // You're mean. Time: 8/4/21 9:47 AM Description: Mod loading error has occurred java.lang.Exception: Mod Loading has failed at net.minecraftforge.fml.CrashReportExtender.dumpModLoadingCrashReport(CrashReportExtender.java:85) ~[forge-1.16.5-36.2.0_mapped_official_1.16.5-recomp.jar:?] {re:classloading} at net.minecraftforge.fml.client.ClientModLoader.completeModLoading(ClientModLoader.java:188) ~[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$null$1(Minecraft.java:508) ~[forge-1.16.5-36.2.0_mapped_official_1.16.5-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A} at net.minecraft.util.Util.ifElse(Util.java:320) ~[forge-1.16.5-36.2.0_mapped_official_1.16.5-recomp.jar:?] {re:classloading} at net.minecraft.client.Minecraft.lambda$new$2(Minecraft.java:504) ~[forge-1.16.5-36.2.0_mapped_official_1.16.5-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A} at net.minecraft.client.gui.ResourceLoadProgressGui.render(ResourceLoadProgressGui.java:113) ~[forge-1.16.5-36.2.0_mapped_official_1.16.5-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A} at net.minecraft.client.renderer.GameRenderer.render(GameRenderer.java:481) ~[forge-1.16.5-36.2.0_mapped_official_1.16.5-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A} at net.minecraft.client.Minecraft.runTick(Minecraft.java:976) ~[forge-1.16.5-36.2.0_mapped_official_1.16.5-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A} at net.minecraft.client.Minecraft.run(Minecraft.java:607) ~[forge-1.16.5-36.2.0_mapped_official_1.16.5-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A} at net.minecraft.client.main.Main.main(Main.java:184) ~[forge-1.16.5-36.2.0_mapped_official_1.16.5-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A} at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_271] {} at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_271] {} at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_271] {} at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_271] {} at net.minecraftforge.userdev.FMLUserdevClientLaunchProvider.lambda$launchService$0(FMLUserdevClientLaunchProvider.java:52) ~[forge-1.16.5-36.2.0_mapped_official_1.16.5-recomp.jar:?] {} at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-8.0.9.jar:?] {} at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-8.0.9.jar:?] {} at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-8.0.9.jar:?] {} at cpw.mods.modlauncher.Launcher.run(Launcher.java:82) [modlauncher-8.0.9.jar:?] {} at cpw.mods.modlauncher.Launcher.main(Launcher.java:66) [modlauncher-8.0.9.jar:?] {} at net.minecraftforge.userdev.LaunchTesting.main(LaunchTesting.java:108) [forge-1.16.5-36.2.0_mapped_official_1.16.5-recomp.jar:?] {} A detailed walkthrough of the error, its code path and all known details is as follows: --------------------------------------------------------------------------------------- -- Head -- Thread: Render thread Stacktrace: at java.util.Objects.requireNonNull(Objects.java:290) ~[?:1.8.0_271] {} -- MOD matter_exchange -- Details: Caused by 0: java.lang.ExceptionInInitializerError at acidassassin.matterexchange.MatterExchange.<init>(MatterExchange.java:19) ~[?:?] {re:classloading} at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:1.8.0_271] {} at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[?:1.8.0_271] {} at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[?:1.8.0_271] {} at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[?:1.8.0_271] {} at java.lang.Class.newInstance(Class.java:442) ~[?:1.8.0_271] {} at net.minecraftforge.fml.javafmlmod.FMLModContainer.constructMod(FMLModContainer.java:81) ~[forge:36.2] {re:classloading} at net.minecraftforge.fml.ModContainer.lambda$buildTransitionHandler$4(ModContainer.java:120) ~[forge:?] {re:classloading} at java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1640) ~[?:1.8.0_271] {} at java.util.concurrent.CompletableFuture$AsyncRun.exec(CompletableFuture.java:1632) ~[?:1.8.0_271] {} at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289) ~[?:1.8.0_271] {} at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1067) ~[?:1.8.0_271] {} at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1703) ~[?:1.8.0_271] {} at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:172) ~[?:1.8.0_271] {} Mod File: main Failure message: Matter Exchange (matter_exchange) has failed to load correctly java.lang.ExceptionInInitializerError: null Mod Version: NONE Mod Issue URL: NOT PROVIDED Exception message: java.lang.NullPointerException: Registry Object not present: matter_exchange:dissolver Stacktrace: at java.util.Objects.requireNonNull(Objects.java:290) ~[?:1.8.0_271] {} at net.minecraftforge.fml.RegistryObject.get(RegistryObject.java:120) ~[forge:?] {re:classloading} at acidassassin.matterexchange.common.register.ModTileEntities.<clinit>(ModTileEntities.java:17) ~[?:?] {re:classloading} at acidassassin.matterexchange.MatterExchange.<init>(MatterExchange.java:19) ~[?:?] {re:classloading} at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:1.8.0_271] {} at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[?:1.8.0_271] {} at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[?:1.8.0_271] {} at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[?:1.8.0_271] {} at java.lang.Class.newInstance(Class.java:442) ~[?:1.8.0_271] {} at net.minecraftforge.fml.javafmlmod.FMLModContainer.constructMod(FMLModContainer.java:81) ~[forge:36.2] {re:classloading} at net.minecraftforge.fml.ModContainer.lambda$buildTransitionHandler$4(ModContainer.java:120) ~[forge:?] {re:classloading} at java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1640) ~[?:1.8.0_271] {} at java.util.concurrent.CompletableFuture$AsyncRun.exec(CompletableFuture.java:1632) ~[?:1.8.0_271] {} at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289) ~[?:1.8.0_271] {} at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1067) ~[?:1.8.0_271] {} at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1703) ~[?:1.8.0_271] {} at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:172) ~[?:1.8.0_271] {} Block registration code: public class ModBlocks { public static final DeferredRegister<Block> BLOCKS = DeferredRegister.create(ForgeRegistries.BLOCKS, Resource.MODID); public static final RegistryObject<Block> DISSOLVER = register("dissolver", new DissolverBlock(), new Item.Properties().tab(ItemGroup.TAB_REDSTONE)); //public static final RegistryObject<Block> DISSOLVER = BLOCKS.register("dissolver", DissolverBlock::new); Doesn't work either // Register Block public static RegistryObject<Block> register(String name, Block block) { return BLOCKS.register(name, () -> block); } // Register Block with item public static RegistryObject<Block> register(String name, Block block, Item.Properties itemProperties) { ModItems.register(name, new BlockItem(block, itemProperties)); return BLOCKS.register(name, () -> block); } } Code that causes the error: public class ModTileEntities { public static final DeferredRegister<TileEntityType<?>> TILE_ENTITIES = DeferredRegister.create(ForgeRegistries.TILE_ENTITIES, Resource.MODID); public static final RegistryObject<TileEntityType<DissolverTileEntity>> DISSOLVER = register("dissolver", DissolverTileEntity::new, ModBlocks.DISSOLVER.get()); // Register tile entity public static <T extends TileEntity> RegistryObject<TileEntityType<T>> register (String name, Supplier<T> tileEntity, Block... blocks) { return TILE_ENTITIES.register(name, () -> TileEntityType.Builder.of(tileEntity, blocks).build(null)); } } Main class: @Mod(Resource.MODID) public class MatterExchange { public MatterExchange() { IEventBus bus = FMLJavaModLoadingContext.get().getModEventBus(); ModBlocks.BLOCKS.register(bus); ModItems.ITEMS.register(bus); ModTileEntities.TILE_ENTITIES.register(bus); MinecraftForge.EVENT_BUS.register(this); } }