Constructing a Custom BiomeProviderType

[Andrew Murdza]

I am interested in registering my own BiomeProviderType which uses my custom BiomeProvider BiomeProviderNew. I am familiar with java reflection and the Function<C,T> generic class and I read this question. The problem that I am having is that in order to get the constructor I need to get the class of BiomeProviderType<OverworldBiomeProviderSettings, OverworldBiomeProvider> (once I get things to work I will replace OverworldBiomeProvider with BiomeProviderNew). I want to say

Class<BiomeProviderType<OverworldBiomeProviderSettings, OverworldBiomeProvider>> class=BiomeProviderType<OverworldBiomeProviderSettings, OverworldBiomeProvider>.class; But this is not possible. I read that I could get the class using Types according to the second answer on this link and on this link, but this resulted in the exception sun.reflect.generics.reflectiveObjects.ParameterizedTypeImpl cannot be cast to java.lang.Class. This link talks about the exception but I don't know how to apply it to my case. Similarly, I also need to get the class of Function<OverworldBiomeProviderSettings, OverworldBiomeProvider> and Function<OverworldBiomeProviderSettings, OverworldBiomeProvider>

 

This is my code:

Spoiler

    public static void onRegisterBiomeProvider(final RegistryEvent.Register<BiomeProviderType<?, ?>> event) {
        final IForgeRegistry<BiomeProviderType<?, ?>> registry = event.getRegistry();
        Class<BiomeProviderType<OverworldBiomeProviderSettings, OverworldBiomeProvider>> providerClass = (Class<BiomeProviderType<OverworldBiomeProviderSettings, OverworldBiomeProvider>>) new TypeToken<BiomeProviderType<OverworldBiomeProviderSettings, OverworldBiomeProvider>>() {
        }.getType();
        Class<Function<OverworldBiomeProviderSettings, OverworldBiomeProvider>> paramType1 = (Class<Function<OverworldBiomeProviderSettings, OverworldBiomeProvider>>) new TypeToken<Function<OverworldBiomeProviderSettings, OverworldBiomeProvider>>() {
        }.getType();
        Class<Function<WorldInfo, OverworldBiomeProviderSettings>> paramType2 = (Class<Function<WorldInfo, OverworldBiomeProviderSettings>>) new TypeToken<Function<WorldInfo, OverworldBiomeProviderSettings>>() {
        }.getType();
        Constructor<BiomeProviderType<OverworldBiomeProviderSettings, OverworldBiomeProvider>> constructor;
        try {
            constructor = providerClass.getConstructor(new Class[] {paramType1,paramType2});
            Function<OverworldBiomeProviderSettings, BiomeProviderNew> function = BiomeProviderNew::new;
            Function<WorldInfo, OverworldBiomeProviderSettings> function2 = OverworldBiomeProviderSettings::new;
            try {
                BiomeProviderType<OverworldBiomeProviderSettings, OverworldBiomeProvider> biomeProvider = constructor
                        .newInstance(function, function2);
                registry.register(biomeProvider);
            } catch (InstantiationException | IllegalAccessException | IllegalArgumentException
                    | InvocationTargetException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        } catch (NoSuchMethodException | SecurityException e1) {
            // TODO Auto-generated catch block
            e1.printStackTrace();
        }

This is the stacktrace I got

Spoiler

[14Mar2020 09:00:58.449] [Render thread/ERROR] [net.minecraftforge.fml.javafmlmod.FMLModContainer/]: Exception caught during firing event: sun.reflect.generics.reflectiveObjects.ParameterizedTypeImpl cannot be cast to java.lang.Class
    Index: 3
    Listeners:
        0: NORMAL
        1: ASM: class com.ageofempiresmod.ModEventSubscriber onRegisterBlocks(Lnet/minecraftforge/event/RegistryEvent$Register;)V
        2: ASM: class com.ageofempiresmod.ModEventSubscriber onRegisterItems(Lnet/minecraftforge/event/RegistryEvent$Register;)V
        3: ASM: class com.ageofempiresmod.ModEventSubscriber onRegisterBiomeProvider(Lnet/minecraftforge/event/RegistryEvent$Register;)V
java.lang.ClassCastException: sun.reflect.generics.reflectiveObjects.ParameterizedTypeImpl cannot be cast to java.lang.Class
    at com.ageofempiresmod.ModEventSubscriber.onRegisterBiomeProvider(ModEventSubscriber.java:57)
    at net.minecraftforge.eventbus.ASMEventHandler_11_ModEventSubscriber_onRegisterBiomeProvider_Register.invoke(.dynamic)
    at net.minecraftforge.eventbus.ASMEventHandler.invoke(ASMEventHandler.java:80)
    at net.minecraftforge.eventbus.EventBus.post(EventBus.java:258)
    at net.minecraftforge.fml.javafmlmod.FMLModContainer.fireEvent(FMLModContainer.java:106)
    at java.util.function.Consumer.lambda$andThen$0(Consumer.java:65)
    at java.util.function.Consumer.lambda$andThen$0(Consumer.java:65)
    at net.minecraftforge.fml.ModContainer.transitionState(ModContainer.java:112)
    at net.minecraftforge.fml.ModList.lambda$dispatchSynchronousEvent$5(ModList.java:125)
    at java.util.ArrayList.forEach(ArrayList.java:1257)
    at net.minecraftforge.fml.ModList.dispatchSynchronousEvent(ModList.java:125)
    at net.minecraftforge.fml.ModList.lambda$static$1(ModList.java:96)
    at net.minecraftforge.fml.LifecycleEventProvider.dispatch(LifecycleEventProvider.java:71)
    at net.minecraftforge.fml.ModLoader.dispatchAndHandleError(ModLoader.java:197)
    at net.minecraftforge.fml.ModLoader.lambda$gatherAndInitializeMods$24(ModLoader.java:189)
    at net.minecraftforge.registries.GameData.fireRegistryEvents(GameData.java:969)
    at net.minecraftforge.fml.ModLoader.gatherAndInitializeMods(ModLoader.java:189)
    at net.minecraftforge.fml.client.ClientModLoader.lambda$begin$2(ClientModLoader.java:97)
    at net.minecraftforge.fml.client.ClientModLoader.lambda$createRunnableWithCatch$5(ClientModLoader.java:113)
    at net.minecraftforge.fml.client.ClientModLoader.begin(ClientModLoader.java:97)
    at net.minecraft.client.Minecraft.<init>(Minecraft.java:393)
    at net.minecraft.client.main.Main.main(Main.java:141)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at net.minecraftforge.userdev.FMLUserdevClientLaunchProvider.lambda$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)

[14Mar2020 09:00:58.516] [Render thread/ERROR] [net.minecraftforge.fml.javafmlmod.FMLModContainer/LOADING]: Caught exception during event RegistryEvent.Register<minecraft:biome_source_type> dispatch for modid ageofempiresmod
java.lang.ClassCastException: sun.reflect.generics.reflectiveObjects.ParameterizedTypeImpl cannot be cast to java.lang.Class
    at com.ageofempiresmod.ModEventSubscriber.onRegisterBiomeProvider(ModEventSubscriber.java:57) ~[main/:?]
    at net.minecraftforge.eventbus.ASMEventHandler_11_ModEventSubscriber_onRegisterBiomeProvider_Register.invoke(.dynamic) ~[?:?]
    at net.minecraftforge.eventbus.ASMEventHandler.invoke(ASMEventHandler.java:80) ~[eventbus-2.0.0-milestone.1-service.jar:?]
    at net.minecraftforge.eventbus.EventBus.post(EventBus.java:258) ~[eventbus-2.0.0-milestone.1-service.jar:?]
    at net.minecraftforge.fml.javafmlmod.FMLModContainer.fireEvent(FMLModContainer.java:106) ~[forge-1.15.2-31.1.1_mapped_snapshot_20190719-1.14.3-recomp.jar:31.1]
    at java.util.function.Consumer.lambda$andThen$0(Consumer.java:65) ~[?:1.8.0_231]
    at java.util.function.Consumer.lambda$andThen$0(Consumer.java:65) ~[?:1.8.0_231]
    at net.minecraftforge.fml.ModContainer.transitionState(ModContainer.java:112) ~[forge-1.15.2-31.1.1_mapped_snapshot_20190719-1.14.3-recomp.jar:?]
    at net.minecraftforge.fml.ModList.lambda$dispatchSynchronousEvent$5(ModList.java:125) ~[forge-1.15.2-31.1.1_mapped_snapshot_20190719-1.14.3-recomp.jar:?]
    at java.util.ArrayList.forEach(ArrayList.java:1257) ~[?:1.8.0_231]
    at net.minecraftforge.fml.ModList.dispatchSynchronousEvent(ModList.java:125) ~[forge-1.15.2-31.1.1_mapped_snapshot_20190719-1.14.3-recomp.jar:?]
    at net.minecraftforge.fml.ModList.lambda$static$1(ModList.java:96) ~[forge-1.15.2-31.1.1_mapped_snapshot_20190719-1.14.3-recomp.jar:?]
    at net.minecraftforge.fml.LifecycleEventProvider.dispatch(LifecycleEventProvider.java:71) ~[forge-1.15.2-31.1.1_mapped_snapshot_20190719-1.14.3-recomp.jar:?]
    at net.minecraftforge.fml.ModLoader.dispatchAndHandleError(ModLoader.java:197) ~[forge-1.15.2-31.1.1_mapped_snapshot_20190719-1.14.3-recomp.jar:?]
    at net.minecraftforge.fml.ModLoader.lambda$gatherAndInitializeMods$24(ModLoader.java:189) ~[forge-1.15.2-31.1.1_mapped_snapshot_20190719-1.14.3-recomp.jar:?]
    at net.minecraftforge.registries.GameData.fireRegistryEvents(GameData.java:969) ~[forge-1.15.2-31.1.1_mapped_snapshot_20190719-1.14.3-recomp.jar:?]
    at net.minecraftforge.fml.ModLoader.gatherAndInitializeMods(ModLoader.java:189) ~[forge-1.15.2-31.1.1_mapped_snapshot_20190719-1.14.3-recomp.jar:?]
    at net.minecraftforge.fml.client.ClientModLoader.lambda$begin$2(ClientModLoader.java:97) ~[forge-1.15.2-31.1.1_mapped_snapshot_20190719-1.14.3-recomp.jar:?]
    at net.minecraftforge.fml.client.ClientModLoader.lambda$createRunnableWithCatch$5(ClientModLoader.java:113) ~[forge-1.15.2-31.1.1_mapped_snapshot_20190719-1.14.3-recomp.jar:?]
    at net.minecraftforge.fml.client.ClientModLoader.begin(ClientModLoader.java:97) ~[forge-1.15.2-31.1.1_mapped_snapshot_20190719-1.14.3-recomp.jar:?]
    at net.minecraft.client.Minecraft.<init>(Minecraft.java:393) ~[forge-1.15.2-31.1.1_mapped_snapshot_20190719-1.14.3-recomp.jar:?]
    at net.minecraft.client.main.Main.main(Main.java:141) ~[forge-1.15.2-31.1.1_mapped_snapshot_20190719-1.14.3-recomp.jar:?]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_231]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_231]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_231]
    at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_231]
    at net.minecraftforge.userdev.FMLUserdevClientLaunchProvider.lambda$launchService$0(FMLUserdevClientLaunchProvider.java:55) ~[forge-1.15.2-31.1.1_mapped_snapshot_20190719-1.14.3-recomp.jar:?]
    at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-5.0.0-milestone.4.jar:?]
    at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-5.0.0-milestone.4.jar:?]
    at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-5.0.0-milestone.4.jar:?]
    at cpw.mods.modlauncher.Launcher.run(Launcher.java:81) [modlauncher-5.0.0-milestone.4.jar:?]
    at cpw.mods.modlauncher.Launcher.main(Launcher.java:65) [modlauncher-5.0.0-milestone.4.jar:?]
    at net.minecraftforge.userdev.LaunchTesting.main(LaunchTesting.java:102) [forge-1.15.2-31.1.1_mapped_snapshot_20190719-1.14.3-recomp.jar:?]
[14Mar2020 09:00:58.571] [Render thread/FATAL] [net.minecraftforge.fml.ModLoader/LOADING]: Failed to complete lifecycle event LOAD_REGISTRIES, 1 errors found
[14Mar2020 09:00:58.576] [Render thread/FATAL] [net.minecraftforge.eventbus.EventBus/EVENTBUS]: EventBus 0 shutting down - future events will not be posted.
java.lang.Exception: stacktrace
    at net.minecraftforge.eventbus.EventBus.shutdown(EventBus.java:278) ~[eventbus-2.0.0-milestone.1-service.jar:?]
    at net.minecraftforge.fml.client.ClientModLoader.lambda$createRunnableWithCatch$5(ClientModLoader.java:115) ~[forge-1.15.2-31.1.1_mapped_snapshot_20190719-1.14.3-recomp.jar:?]
    at net.minecraftforge.fml.client.ClientModLoader.begin(ClientModLoader.java:97) ~[forge-1.15.2-31.1.1_mapped_snapshot_20190719-1.14.3-recomp.jar:?]
    at net.minecraft.client.Minecraft.<init>(Minecraft.java:393) ~[forge-1.15.2-31.1.1_mapped_snapshot_20190719-1.14.3-recomp.jar:?]
    at net.minecraft.client.main.Main.main(Main.java:141) ~[forge-1.15.2-31.1.1_mapped_snapshot_20190719-1.14.3-recomp.jar:?]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_231]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_231]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_231]
    at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_231]
    at net.minecraftforge.userdev.FMLUserdevClientLaunchProvider.lambda$launchService$0(FMLUserdevClientLaunchProvider.java:55) ~[forge-1.15.2-31.1.1_mapped_snapshot_20190719-1.14.3-recomp.jar:?]
    at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-5.0.0-milestone.4.jar:?]
    at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-5.0.0-milestone.4.jar:?]
    at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-5.0.0-milestone.4.jar:?]
    at cpw.mods.modlauncher.Launcher.run(Launcher.java:81) [modlauncher-5.0.0-milestone.4.jar:?]
    at cpw.mods.modlauncher.Launcher.main(Launcher.java:65) [modlauncher-5.0.0-milestone.4.jar:?]
    at net.minecraftforge.userdev.LaunchTesting.main(LaunchTesting.java:102) [forge-1.15.2-31.1.1_mapped_snapshot_20190719-1.14.3-recomp.jar:?]
[14Mar2020 09:01:05.716] [Render thread/INFO] [com.mojang.text2speech.NarratorWindows/]: Narrator library for x64 successfully loaded
[14Mar2020 09:01:06.035] [Render thread/INFO] [net.minecraft.resources.SimpleReloadableResourceManager/]: Reloading ResourceManager: Default, Mod Resources
[14Mar2020 09:01:11.455] [Server-Worker-1/ERROR] [net.minecraftforge.fml.ModLoader/LOADING]: Skipping lifecycle event SETUP, 1 errors found.
[14Mar2020 09:01:11.455] [Server-Worker-1/FATAL] [net.minecraftforge.fml.ModLoader/LOADING]: Failed to complete lifecycle event SETUP, 1 errors found
[14Mar2020 09:01:11.456] [Server-Worker-1/FATAL] [net.minecraftforge.eventbus.EventBus/EVENTBUS]: EventBus 0 shutting down - future events will not be posted.
java.lang.Exception: stacktrace
    at net.minecraftforge.eventbus.EventBus.shutdown(EventBus.java:278) ~[eventbus-2.0.0-milestone.1-service.jar:?]
    at net.minecraftforge.fml.client.ClientModLoader.lambda$createRunnableWithCatch$5(ClientModLoader.java:115) ~[?:?]
    at net.minecraftforge.fml.client.ClientModLoader.startModLoading(ClientModLoader.java:123) ~[?:?]
    at net.minecraftforge.fml.client.ClientModLoader.lambda$onreload$3(ClientModLoader.java:105) ~[?:?]
    at net.minecraftforge.fml.client.ClientModLoader.lambda$createRunnableWithCatch$5(ClientModLoader.java:113) ~[?:?]
    at java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1626) [?:1.8.0_231]
    at java.util.concurrent.CompletableFuture$AsyncRun.exec(CompletableFuture.java:1618) [?:1.8.0_231]
    at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289) [?:1.8.0_231]
    at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056) [?:1.8.0_231]
    at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692) [?:1.8.0_231]
    at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157) [?:1.8.0_231]
[14Mar2020 09:01:20.479] [Server-Worker-3/ERROR] [net.minecraftforge.fml.ModLoader/LOADING]: Skipping lifecycle event ENQUEUE_IMC, 1 errors found.
[14Mar2020 09:01:20.480] [Server-Worker-3/FATAL] [net.minecraftforge.fml.ModLoader/LOADING]: Failed to complete lifecycle event ENQUEUE_IMC, 1 errors found
[14Mar2020 09:01:20.480] [Server-Worker-3/FATAL] [net.minecraftforge.eventbus.EventBus/EVENTBUS]: EventBus 0 shutting down - future events will not be posted.
java.lang.Exception: stacktrace
    at net.minecraftforge.eventbus.EventBus.shutdown(EventBus.java:278) ~[eventbus-2.0.0-milestone.1-service.jar:?]
    at net.minecraftforge.fml.client.ClientModLoader.lambda$createRunnableWithCatch$5(ClientModLoader.java:115) ~[?:?]
    at net.minecraftforge.fml.client.ClientModLoader.finishModLoading(ClientModLoader.java:137) ~[?:?]
    at net.minecraftforge.fml.client.ClientModLoader.lambda$onreload$4(ClientModLoader.java:107) ~[?:?]
    at java.util.concurrent.CompletableFuture.uniRun(CompletableFuture.java:705) [?:1.8.0_231]
    at java.util.concurrent.CompletableFuture$UniRun.tryFire(CompletableFuture.java:687) [?:1.8.0_231]
    at java.util.concurrent.CompletableFuture$Completion.exec(CompletableFuture.java:443) [?:1.8.0_231]
    at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289) [?:1.8.0_231]
    at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056) [?:1.8.0_231]
    at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692) [?:1.8.0_231]
    at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157) [?:1.8.0_231]
 

 

I guess this is more of a java question than a question about forge. Thanks!

Edited March 14, 2020 by Andrew Murdza