@Mod.EventHandler
public void init(FMLInitializationEvent evt) {
	try {
		proxy.init(evt);
		nativeConverters.stream().forEachOrdered(forgeLoadable -> forgeLoadable.init(evt));
		int size = novaModWrappers.size() + novaWrappers.size();
		if (size > 0) {
			ProgressManager.ProgressBar progressBar = ProgressManager.push("Initializing NOVA wrappers", size);
			FMLProgressBar fmlProgressBar = new FMLProgressBar(progressBar);
			novaModWrappers.stream().forEachOrdered(wrapper -> {
				fmlProgressBar.step(wrapper.getClass());
				wrapper.init(evt);
			});
			novaWrappers.stream().forEachOrdered(wrapper -> {
				fmlProgressBar.step(wrapper.getClass());
				wrapper.init(evt);
			});
			fmlProgressBar.finish();
			ProgressManager.pop(progressBar);
		}
	} catch (Exception e) {
		Game.logger().error("Error during init");
		e.printStackTrace();
		throw new InitializationException(e);
	}
}
 

private static void loadModSubsets() {
    ProgressBar bar = ProgressManager.push("Mod Subsets", ForgeRegistries.ITEMS.getKeys().size());
    HashMap<String, ItemStackSet> modSubsets = new HashMap<>();

    for (Item item : ForgeRegistries.ITEMS) {
        try {
            ResourceLocation ident = item.getRegistryName();
            bar.step(ident.toString());
            if (ident == null) {
                LogHelper.error("Failed to find identifier for: " + item);
                continue;
            }
            String modId = ident.getResourceDomain();
            ItemInfo.itemOwners.put(item, modId);
            ItemStackSet itemset = modSubsets.computeIfAbsent(modId, k -> new ItemStackSet());
            itemset.with(item);
        } catch (Throwable t) {
            LogHelper.errorError("Failed to process mod subset item %s %s", t, String.valueOf(item), String.valueOf(item.getRegistryName()));
        }
    }
    ProgressManager.pop(bar);

    API.addSubset("Mod.Minecraft", modSubsets.remove("minecraft"));
    for (Entry<String, ItemStackSet> entry : modSubsets.entrySet()) {
        ModContainer mc = FMLCommonHandler.instance().findContainerFor(entry.getKey());
        if (mc == null) {
            LogHelper.error("Missing container for " + entry.getKey());
        } else {
            API.addSubset("Mod." + mc.getName(), entry.getValue());
        }
    }
}
 

@Mod.EventHandler
public void postInit(FMLPostInitializationEvent evt) {
	try {
		proxy.postInit(evt);
		nativeConverters.stream().forEachOrdered(forgeLoadable -> forgeLoadable.postInit(evt));
		Game.recipes().init();
		int size = novaModWrappers.size() + novaWrappers.size();
		if (size > 0) {
			ProgressManager.ProgressBar progressBar = ProgressManager.push("Post-initializing NOVA wrappers", size);
			FMLProgressBar fmlProgressBar = new FMLProgressBar(progressBar);
			novaModWrappers.stream().forEachOrdered(wrapper -> {
				fmlProgressBar.step(wrapper.getClass());
				wrapper.postInit(evt);
			});
			novaWrappers.stream().forEachOrdered(wrapper -> {
				fmlProgressBar.step(wrapper.getClass());
				wrapper.postInit(evt);
			});
			fmlProgressBar.finish();
			ProgressManager.pop(progressBar);
		}
	} catch (Exception e) {
		Game.logger().error("Error during postInit");
		e.printStackTrace();
		throw new InitializationException(e);
	}
}