GatherDataEvent never fired?

[Code_Cube]

Here is the relevant portion of my code:

 

@Mod("sizecraft")
@Mod.EventBusSubscriber(Dist.CLIENT)
public class SizeCraftMod {


    // <Other mod code>


    @Mod.EventBusSubscriber(modid = "sizecraft", bus = Mod.EventBusSubscriber.Bus.MOD)
    public static class RegistryEvents {   


        // <Other registry-related things>


        @SubscribeEvent
        public static void gatherData(GatherDataEvent event) {
            DataGenerator gen = event.getGenerator();
            ExistingFileHelper helper = event.getExistingFileHelper();
            // Trigger a nullptr exception so that we can know that this event handler is being called.
            ((GatherDataEvent) null).description();

            if (event.includeServer()) {
            }
            if (event.includeClient()) {
                gen.addProvider(new HeldEntityItem.ModelProvider(gen, helper));
            }
        }
    }
}

 

 

I intentionally added that line which should trigger a NullPointerException when the event handler is run. However, the game never crashes and no error is written to the console. I tried just doing a print statement earlier, but that did not show up either. I am basing my code on this file by LexManos which, if the commit message is to be believed, should work on 1.15.2, the same version I am running. Is there something I am missing?

Edited July 13, 2020 by Code_Cube

[LexManos]

... You need to run the data run config, not the client/server.

This is a in dev only event.

[Code_Cube]

Ah, okay. Thank you for the clarification.