Program: 109782
Project: 109782
Buggy source:
public void includeRecipe(ItemStack result,Object aobj[]){
  Set<ItemStack> recipeContents=new HashSet<ItemStack>();
  addItemToRecipeContents(recipeContents,result);
  String recipeString="String_Node_Str";
  int i=0;
  int width=0;
  int height=0;
  if (aobj[i] instanceof String[]) {
    String[] cols=(String[])((String[])aobj[i++]);
    for (int j=0; j < cols.length; ++j) {
      String row=cols[j];
      ++height;
      width=row.length();
      recipeString=recipeString + row;
    }
  }
 else {
    while (aobj[i] instanceof String) {
      String row=(String)aobj[i++];
      ++height;
      width=row.length();
      recipeString=recipeString + row;
    }
  }
  HashMap<Character,ItemStack> charMap;
  for (charMap=new HashMap<Character,ItemStack>(); i < aobj.length; i+=2) {
    Character itemChar=(Character)aobj[i];
    ItemStack itemStack=null;
    if (aobj[i + 1] instanceof Item) {
      itemStack=new ItemStack((Item)aobj[i + 1]);
    }
 else     if (aobj[i + 1] instanceof Block) {
      itemStack=new ItemStack((Block)aobj[i + 1],1,-1);
    }
 else     if (aobj[i + 1] instanceof ItemStack) {
      itemStack=(ItemStack)aobj[i + 1];
    }
    charMap.put(itemChar,itemStack);
    addItemToRecipeContents(recipeContents,itemStack);
  }
  ItemStack[] slotArray=new ItemStack[width * height];
  for (int slots=0; slots < width * height; slots++) {
    char itemChar=recipeString.charAt(slots);
    if (charMap.containsKey(itemChar)) {
      slotArray[slots]=((ItemStack)charMap.get(itemChar)).copy();
    }
 else {
      slotArray[slots]=null;
    }
  }
  ShapedRecipes recipe=new ShapedRecipes(width,height,slotArray,result);
  for (  ItemStack item : recipeContents) {
    boolean foundKey=false;
    for (    ItemStack key : recipes.keySet()) {
      if (item.isItemEqual(key)) {
        foundKey=true;
        recipes.get(key).add(recipe);
        break;
      }
    }
    if (foundKey == false) {
      recipes.put(item,new ArrayList<ShapedRecipes>());
      recipes.get(item).add(recipe);
    }
  }
}

Fixed version (ground truth):
public void includeRecipe(ItemStack result,Object aobj[]){
  Set<ItemStack> recipeContents=new HashSet<ItemStack>();
  addItemToRecipeContents(recipeContents,result);
  String recipeString="String_Node_Str";
  int i=0;
  int width=0;
  int height=0;
  if (aobj[i] instanceof String[]) {
    String[] cols=(String[])((String[])aobj[i++]);
    for (int j=0; j < cols.length; ++j) {
      String row=cols[j];
      ++height;
      width=row.length();
      recipeString=recipeString + row;
    }
  }
 else {
    while (aobj[i] instanceof String) {
      String row=(String)aobj[i++];
      ++height;
      width=row.length();
      recipeString=recipeString + row;
    }
  }
  HashMap<Character,ItemStack> charMap;
  for (charMap=new HashMap<Character,ItemStack>(); i < aobj.length; i+=2) {
    Character itemChar=(Character)aobj[i];
    ItemStack itemStack=null;
    if (aobj[i + 1] instanceof Item) {
      itemStack=new ItemStack((Item)aobj[i + 1]);
    }
 else     if (aobj[i + 1] instanceof Block) {
      itemStack=new ItemStack((Block)aobj[i + 1],1,-1);
    }
 else     if (aobj[i + 1] instanceof ItemStack) {
      itemStack=(ItemStack)aobj[i + 1];
    }
    charMap.put(itemChar,itemStack);
    addItemToRecipeContents(recipeContents,itemStack);
  }
  NonNullList<Ingredient> slotArray=NonNullList.withSize(width * height,Ingredient.EMPTY);
  for (int slots=0; slots < width * height; slots++) {
    char itemChar=recipeString.charAt(slots);
    if (charMap.containsKey(itemChar)) {
      slotArray.set(slots,CraftingHelper.getIngredient(charMap.get(itemChar)));
    }
  }
  ShapedRecipes recipe=new ShapedRecipes(null,width,height,slotArray,result);
  for (  ItemStack item : recipeContents) {
    boolean foundKey=false;
    for (    ItemStack key : recipes.keySet()) {
      if (item.isItemEqual(key)) {
        foundKey=true;
        recipes.get(key).add(recipe);
        break;
      }
    }
    if (foundKey == false) {
      recipes.put(item,new ArrayList<ShapedRecipes>());
      recipes.get(item).add(recipe);
    }
  }
}