Program: 10177
Project: 10177
Buggy source:
@EventHandler public void scriptReload(ScriptReloadEvent event){
  for (  Map.Entry<ItemScriptContainer,List<String>> entry : recipes_to_register.entrySet()) {
    ItemScriptContainer container=entry.getKey();
    List<String> recipeList=entry.getValue();
    for (int n=0; n < recipeList.size(); n++) {
      recipeList.set(n,TagManager.tag(recipeList.get(n),new BukkitTagContext(container.player,container.npc,false,null,dB.shouldDebug(container),new dScript(container))));
    }
    List<dItem> ingredients=new ArrayList<dItem>();
    boolean shouldRegister=true;
    recipeLoop:     for (    String recipeRow : recipeList) {
      String[] elements=recipeRow.split("String_Node_Str",3);
      for (      String element : elements) {
        dItem ingredient=dItem.valueOf(element.replaceAll("String_Node_Str","String_Node_Str"));
        if (ingredient == null) {
          dB.echoError("String_Node_Str" + container.getName() + "String_Node_Str"+ element);
          shouldRegister=false;
          break recipeLoop;
        }
        ingredients.add(ingredient);
      }
    }
    if (shouldRegister) {
      ItemScriptContainer.specialrecipesMap.put(container,ingredients);
    }
  }
  for (  Map.Entry<ItemScriptContainer,String> entry : shapeless_to_register.entrySet()) {
    ItemScriptContainer container=entry.getKey();
    String string=entry.getValue();
    String list=TagManager.tag(string,new BukkitTagContext(container.player,container.npc,false,null,dB.shouldDebug(container),new dScript(container)));
    List<dItem> ingredients=new ArrayList<dItem>();
    boolean shouldRegister=true;
    for (    String element : dList.valueOf(list)) {
      dItem ingredient=dItem.valueOf(element.replaceAll("String_Node_Str","String_Node_Str"));
      if (ingredient == null) {
        dB.echoError("String_Node_Str" + container.getName() + "String_Node_Str"+ element);
        shouldRegister=false;
        break;
      }
      ingredients.add(ingredient);
    }
    if (shouldRegister) {
      ItemScriptContainer.shapelessRecipesMap.put(container,ingredients);
    }
  }
}

Fixed version (ground truth):
@EventHandler public void scriptReload(ScriptReloadEvent event){
  for (  Map.Entry<ItemScriptContainer,List<String>> entry : recipes_to_register.entrySet()) {
    ItemScriptContainer container=entry.getKey();
    List<String> recipeList=entry.getValue();
    for (int n=0; n < recipeList.size(); n++) {
      recipeList.set(n,TagManager.tag(recipeList.get(n),new BukkitTagContext(container.player,container.npc,false,null,dB.shouldDebug(container),new dScript(container))));
    }
    List<dItem> ingredients=new ArrayList<dItem>();
    boolean shouldRegister=true;
    recipeLoop:     for (    String recipeRow : recipeList) {
      String[] elements=recipeRow.split("String_Node_Str",3);
      for (      String element : elements) {
        dItem ingredient=dItem.valueOf(element.replaceAll("String_Node_Str","String_Node_Str"));
        if (ingredient == null) {
          dB.echoError("String_Node_Str" + container.getName() + "String_Node_Str"+ element);
          shouldRegister=false;
          break recipeLoop;
        }
        ingredients.add(ingredient);
      }
    }
    if (shouldRegister) {
      ItemScriptContainer.specialrecipesMap.put(container,ingredients);
    }
  }
  for (  Map.Entry<ItemScriptContainer,String> entry : shapeless_to_register.entrySet()) {
    ItemScriptContainer container=entry.getKey();
    String string=entry.getValue();
    String list=TagManager.tag(string,new BukkitTagContext(container.player,container.npc,false,null,dB.shouldDebug(container),new dScript(container)));
    List<dItem> ingredients=new ArrayList<dItem>();
    boolean shouldRegister=true;
    for (    String element : dList.valueOf(list)) {
      dItem ingredient=dItem.valueOf(element.replaceAll("String_Node_Str","String_Node_Str"));
      if (ingredient == null) {
        dB.echoError("String_Node_Str" + container.getName() + "String_Node_Str"+ element);
        shouldRegister=false;
        break;
      }
      ingredients.add(ingredient);
    }
    if (shouldRegister) {
      ItemScriptContainer.shapelessRecipesMap.put(container,ingredients);
    }
  }
  recipes_to_register.clear();
  shapeless_to_register.clear();
}