This is my code :

@Mod.EventBusSubscriber(value = Dist.CLIENT)
public class KeyBoardInput {
    public static final KeyMapping BASE_SKILL = new KeyMapping("key.message",
            KeyConflictContext.IN_GAME,
            KeyModifier.CONTROL,
            InputConstants.Type.KEYSYM,
            GLFW.GLFW_KEY_J,
            "key.category.neutrino");

    @SubscribeEvent
    public static void onKeyboardInput(InputEvent.Key event) {
        System.err.println(event.getKey()+":"+event.getAction());
        if (BASE_SKILL.consumeClick()) {
            assert Minecraft.getInstance().player != null;
            System.out.println("Player"+Minecraft.getInstance().player.getName()+"down"+event.getKey());
        }else{
            System.out.println("not a rule");
        }
    }
}

@Mod.EventBusSubscriber(bus = Mod.EventBusSubscriber.Bus.MOD, value = Dist.CLIENT)
public class KeybindingRegistry {
    @SubscribeEvent
    public static void onClientSetup(FMLClientSetupEvent event) {
        ClientRegistry.registerKeyBinding(KeyBoardInput.BASE_SKILL);
    }
}

This is my version 1.16 code, and it is successful, but there is no ClientRegistry class in 1.19.4, and I don’t know if there is any problem with other parts.

And i did not find a corresponding countermeasure in https://forge.gemwire.uk/wiki/Main_Page 

https://github.com/MinecraftForge/MinecraftForge/blob/1.20.x/src/main/java/net/minecraftforge/client/event/RegisterKeyMappingsEvent.java