Test of mcp patching

build.gradle

@@ -51,6 +51,7 @@ minecraft {
             patchAfter "clean"
             genPatchesFrom "clean"
             genMcpPatches = true
+            applyMcpPatches = true
             with common
         }
     }

patches/minecraft/net/minecraft/client/gui/GuiMainMenu.java.patch

@@ -0,0 +1,44 @@
+--- ../src-base/minecraft/net/minecraft/client/gui/GuiMainMenu.java
++++ ../src-work/minecraft/net/minecraft/client/gui/GuiMainMenu.java
+@@ -198,6 +198,11 @@
+         this.buttonList.add(new GuiButton(1, this.width / 2 - 100, p_73969_1_, I18n.format("menu.singleplayer", new Object[0])));
+         this.buttonList.add(new GuiButton(2, this.width / 2 - 100, p_73969_1_ + p_73969_2_ * 1, I18n.format("menu.multiplayer", new Object[0])));
+         this.buttonList.add(this.realmsButton = new GuiButton(14, this.width / 2 - 100, p_73969_1_ + p_73969_2_ * 2, I18n.format("menu.online", new Object[0])));
++        GuiButton fmlModButton = new GuiButton(6, this.width / 2 - 100, p_73969_1_ + p_73969_2_ * 2, I18n.format("fml.menu.mods"));
++        fmlModButton.xPosition = this.width / 2 + 2;
++        realmsButton.width = 98;
++        fmlModButton.width = 98;
++        this.buttonList.add(fmlModButton);
+     }
+ 
+     private void addDemoButtons(int p_73972_1_, int p_73972_2_)
+@@ -245,6 +250,11 @@
+             this.mc.shutdown();
+         }
+ 
++        if (button.id == 6)
++        {
++            this.mc.displayGuiScreen(new net.minecraftforge.fml.client.GuiModList(this));
++        }
++
+         if (button.id == 11)
+         {
+             this.mc.launchIntegratedServer("Demo_World", "Demo_World", DemoWorldServer.demoWorldSettings);
+@@ -490,7 +500,16 @@
+             s = s + " Demo";
+         }
+ 
+-        this.drawString(this.fontRendererObj, s, 2, this.height - 10, -1);
++        java.util.List<String> brandings = com.google.common.collect.Lists.reverse(net.minecraftforge.fml.common.FMLCommonHandler.instance().getBrandings(true));
++        for (int brdline = 0; i < brandings.size(); i++)
++        {
++            String brd = brandings.get(brdline);
++            if (!com.google.common.base.Strings.isNullOrEmpty(brd))
++            {
++                this.drawString(this.fontRendererObj, brd, 2, this.height - ( 10 + brdline * (this.fontRendererObj.FONT_HEIGHT + 1)), 16777215);
++            }
++        }
++        net.minecraftforge.client.ForgeHooksClient.renderMainMenu(this, this.fontRendererObj, this.width, this.height);
+         String s1 = "Copyright Mojang AB. Do not distribute!";
+         this.drawString(this.fontRendererObj, s1, this.width - this.fontRendererObj.getStringWidth(s1) - 2, this.height - 10, -1);
+ 

src/main/java/net/minecraftforge/common/ForgeVersion.java

@@ -255,6 +255,7 @@ public class ForgeVersion
 
     public static CheckResult getResult(ModContainer mod)
     {
+        if (mod == null) return PENDING_CHECK;
         if (mod instanceof InjectedModContainer)
             mod = ((InjectedModContainer)mod).wrappedContainer;
         CheckResult ret = results.get(mod);

src/main/java/net/minecraftforge/fml/common/launcher/FMLDeobfTweaker.java

@@ -31,7 +31,7 @@ public class FMLDeobfTweaker implements ITweaker {
             classLoader.registerTransformer(transformer);
         }
         classLoader.registerTransformer("net.minecraftforge.fml.common.asm.transformers.ModAccessTransformer");
-        classLoader.registerTransformer("net.minecraftforge.fml.common.asm.transformers.ItemStackTransformer");
+//        classLoader.registerTransformer("net.minecraftforge.fml.common.asm.transformers.ItemStackTransformer");
         try
         {
             FMLRelaunchLog.fine("Validating minecraft");