Check name prefix used for tile entity registrations (#4681)

src/main/java/net/minecraftforge/fml/common/registry/GameRegistry.java

@@ -226,11 +226,19 @@ public class GameRegistry
         FurnaceRecipes.instance().addSmeltingRecipe(input, output, xp);
     }
 
+    @Deprecated //TODO: Remove in 1.13, Use ResourceLocation version.
     public static void registerTileEntity(Class<? extends TileEntity> tileEntityClass, String key)
     {
+        // As return is ignored for compatibility, always check namespace
+        GameData.checkPrefix(new ResourceLocation(key).toString());
         TileEntity.register(key, tileEntityClass);
     }
 
+    public static void registerTileEntity(Class<? extends TileEntity> tileEntityClass, ResourceLocation key)
+    {
+        registerTileEntity(tileEntityClass, key.toString());
+    }
+
     /**
      * @deprecated set your item's {@link Item#getItemBurnTime(ItemStack)} or subscribe to {@link FurnaceFuelBurnTimeEvent} instead.
      */

src/main/java/net/minecraftforge/registries/GameData.java

@@ -51,8 +51,11 @@ import net.minecraftforge.event.RegistryEvent;
 import net.minecraftforge.event.RegistryEvent.MissingMappings;
 import net.minecraftforge.fml.common.EnhancedRuntimeException;
 import net.minecraftforge.fml.common.FMLCommonHandler;
+import net.minecraftforge.fml.common.FMLContainer;
 import net.minecraftforge.fml.common.FMLLog;
+import net.minecraftforge.fml.common.InjectedModContainer;
 import net.minecraftforge.fml.common.Loader;
+import net.minecraftforge.fml.common.ModContainer;
 import net.minecraftforge.fml.common.StartupQuery;
 import net.minecraftforge.fml.common.ZipperUtil;
 import net.minecraftforge.fml.common.registry.EntityEntry;
@@ -69,6 +72,7 @@ import java.util.Collection;
 import java.util.Collections;
 import java.util.LinkedHashMap;
 import java.util.List;
+import java.util.Locale;
 import java.util.Map;
 import java.util.function.BiConsumer;
 import java.util.function.Predicate;
@@ -756,6 +760,21 @@ public class GameData
         */
     }
 
+    public static ResourceLocation checkPrefix(String name)
+    {
+        int index = name.lastIndexOf(':');
+        String oldPrefix = index == -1 ? "" : name.substring(0, index).toLowerCase(Locale.ROOT);
+        name = index == -1 ? name : name.substring(index + 1);
+        ModContainer mc = Loader.instance().activeModContainer();
+        String prefix = mc == null || (mc instanceof InjectedModContainer && ((InjectedModContainer)mc).wrappedContainer instanceof FMLContainer) ? "minecraft" : mc.getModId().toLowerCase(Locale.ROOT);
+        if (!oldPrefix.equals(prefix) && oldPrefix.length() > 0)
+        {
+            FMLLog.log.warn("Potentially Dangerous alternative prefix `{}` for name `{}`, expected `{}`. This could be a intended override, but in most cases indicates a broken mod.", oldPrefix, name, prefix);
+            prefix = oldPrefix;
+        }
+        return new ResourceLocation(prefix, name);
+    }
+
     private static Field regName;
     private static void forceRegistryName(IForgeRegistryEntry<?> entry, ResourceLocation name)
     {

src/main/java/net/minecraftforge/registries/IForgeRegistryEntry.java

@@ -22,11 +22,6 @@ package net.minecraftforge.registries;
 import com.google.common.reflect.TypeToken;
 
 import net.minecraft.util.ResourceLocation;
-import net.minecraftforge.fml.common.FMLContainer;
-import net.minecraftforge.fml.common.FMLLog;
-import net.minecraftforge.fml.common.InjectedModContainer;
-import net.minecraftforge.fml.common.Loader;
-import net.minecraftforge.fml.common.ModContainer;
 
 import javax.annotation.Nullable;
 
@@ -75,17 +70,7 @@ public interface IForgeRegistryEntry<V>
             if (getRegistryName() != null)
                 throw new IllegalStateException("Attempted to set registry name with existing registry name! New: " + name + " Old: " + getRegistryName());
 
-            int index = name.lastIndexOf(':');
-            String oldPrefix = index == -1 ? "" : name.substring(0, index).toLowerCase();
-            name = index == -1 ? name : name.substring(index + 1);
-            ModContainer mc = Loader.instance().activeModContainer();
-            String prefix = mc == null || (mc instanceof InjectedModContainer && ((InjectedModContainer)mc).wrappedContainer instanceof FMLContainer) ? "minecraft" : mc.getModId().toLowerCase();
-            if (!oldPrefix.equals(prefix) && oldPrefix.length() > 0)
-            {
-                FMLLog.log.info("Potentially Dangerous alternative prefix `{}` for name `{}`, expected `{}`. This could be a intended override, but in most cases indicates a broken mod.", oldPrefix, name, prefix);
-                prefix = oldPrefix;
-            }
-            this.registryName = new ResourceLocation(prefix, name);
+            this.registryName = GameData.checkPrefix(name);
             return (T)this;
         }
 

src/test/java/net/minecraftforge/debug/client/rendering/FastTESRTransparentTest.java

@@ -251,7 +251,7 @@ public class FastTESRTransparentTest
     @EventHandler
     public void preInit(FMLPreInitializationEvent evt)
     {
-        GameRegistry.registerTileEntity(TransparentFastTE.class, "fast-tesr-te");
+        GameRegistry.registerTileEntity(TransparentFastTE.class, MODID + ":fast-tesr-te");
     }
 
     @EventBusSubscriber(value = Side.CLIENT, modid = MODID)