Specifing any value for the key "services" in (neoforge.)mods.toml always causes crash.

[heipiao233]

The key services in (neoforge.)mods.toml was introduced in MinecraftForge 37.0.0, the 1.17.1 update. It uses a new class ModJarMetadata to implement this by using ModuleDescriptor.Builder.uses.
However, the Builder was created by newAutomaticModule, which doesn't allow calling uses:

   public ModuleDescriptor$Builder uses(String service) {
      if (this.automatic) {
         throw new IllegalStateException("Automatic modules can not declare service dependences");
      } else if (this.uses.contains(Checks.requireServiceTypeName(service))) {
         throw new IllegalStateException("Dependence upon service " + service + " already declared");
      } else {
         this.uses.add(service);
         return this;
      }
   }

(Taken from decompiled OpenJDK 21 (using FernFlower decompiler), but it's same for OpenJDK 16/17.)

This key is documented, and is still not removed in Fancy Mod Loader 3.0.19.

An example that "supports" from MinecraftForge 37.x.x to NeoForge 20.6.20-beta (or later), please gunzip it.

[Technici4n]

That's quite funny. We should probably remove that key.