AccessWidenerUtils: Ignore fabric.mod.json on (Neo)Forge

Fixes #165. Closes #180.
architectury · Dec 9, 2023 · 9f070d2 · 9f070d2
1 parent 827c0e9
commit 9f070d2
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/src/main/java/net/fabricmc/loom/configuration/mods/AccessWidenerUtils.java b/src/main/java/net/fabricmc/loom/configuration/mods/AccessWidenerUtils.java
@@ -37,6 +37,7 @@
 import net.fabricmc.loom.util.ModPlatform;
 import net.fabricmc.loom.util.fmj.FabricModJson;
 import net.fabricmc.loom.util.fmj.FabricModJsonFactory;
+import net.fabricmc.loom.util.fmj.ModMetadataFabricModJson;
 
 public class AccessWidenerUtils {
 	/**
@@ -63,6 +64,13 @@ public static AccessWidenerData readAccessWidenerData(Path inputJar, ModPlatform
 		}
 
 		final FabricModJson fabricModJson = FabricModJsonFactory.createFromZip(inputJar);
+
+		if (platform.isForgeLike() && !(fabricModJson instanceof ModMetadataFabricModJson)) {
+			// Ignore actual fabric.mod.json files on NeoForge and Forge.
+			// See https://github.com/architectury/architectury-loom/issues/165.
+			return null;
+		}
+
 		final List<String> classTweakers = List.copyOf(fabricModJson.getClassTweakers().keySet());
 
 		if (classTweakers.isEmpty()) {