Validator Error on empty class

[LexManos]

While poking a FG issue I had to make an empty class:

package com.example.examplemod;
public final class ExampleMod { }

which resulted in an validation error:

Caused by: java.lang.NullPointerException: Cannot invoke "javax.lang.model.element.TypeElement.asType()" because the return value of "javax.lang.model.util.Elements.getTypeElement(java.lang.CharSequence)" is null
        at net.minecraftforge.eventbus.validator.AbstractValidator.init(AbstractValidator.java:74)
        at net.minecraftforge.eventbus.validator.EventBusValidator.init(EventBusValidator.java:33)

[PaintNinja]

Is EventBus on the compile classpath? The line it's failing on is where it grabs the javac type object that the validator needs in order to do inheritance checks:

EventBus/eventbus-validator/src/main/java/net/minecraftforge/eventbus/validator/AbstractValidator.java

Line 74 in e2e1a16

EventTypes.inheritableEvent = elements.getTypeElement(InheritableEvent.class.getCanonicalName()).asType();

Is this on Java 21 or 25? I vaguely remember 25 doing some changes to how APs are loaded, maybe something about needing to put EventBus on the AP classpath on top of implementation.

[LexManos]

That would be a no, and makes sense.
I was working on the vanilla issue you reported. So i changed the MC dep to vanilla and didn't notice i left the AP in.