Program: 10359
Project: 10359
Buggy source:
/** 
 * Gets a Item Object from a string form.
 * @param string  The string or dScript argument String
 * @param player  The dPlayer to be used for player contextswhere applicable.
 * @param npc     The dNPC to be used for NPC contextswhere applicable.
 * @return  an Item, or null if incorrectly formatted
 */
@ObjectFetcher("String_Node_Str") public static dItem valueOf(String string,dPlayer player,dNPC npc){
  if (string == null)   return null;
  Matcher m;
  dItem stack=null;
  final Pattern item_by_entity_id=Pattern.compile("String_Node_Str");
  m=item_by_entity_id.matcher(string);
  if (m.matches()) {
    for (    World world : Bukkit.getWorlds()) {
      for (      Entity entity : world.getEntitiesByClass(Item.class)) {
        if (entity.getEntityId() == Integer.valueOf(m.group(2))) {
          stack=new dItem(((Item)entity).getItemStack());
          if (m.group(3) != null) {
            stack.setAmount(Integer.valueOf(m.group(3)));
          }
          return stack;
        }
      }
    }
  }
  final Pattern item_by_saved=Pattern.compile("String_Node_Str");
  m=item_by_saved.matcher(string);
  if (m.matches() && NotableManager.isSaved(m.group(2)) && NotableManager.isType(m.group(2),dItem.class)) {
    stack=(dItem)NotableManager.getSavedObject(m.group(2));
    if (m.group(3) != null) {
      stack.setAmount(Integer.valueOf(m.group(3)));
    }
    return stack;
  }
  string=string.replace("String_Node_Str","String_Node_Str");
  m=ITEM_PATTERN.matcher(string);
  if (m.matches()) {
    try {
      if (ScriptRegistry.containsScript(m.group(1),ItemScriptContainer.class)) {
        stack=ScriptRegistry.getScriptContainerAs(m.group(1),ItemScriptContainer.class).getItemFrom(player,npc);
      }
 else       if (ScriptRegistry.containsScript(m.group(1),BookScriptContainer.class)) {
        stack=ScriptRegistry.getScriptContainerAs(m.group(1),BookScriptContainer.class).getBookFrom(player,npc);
      }
      if (stack != null) {
        if (m.group(3) != null) {
          stack.setAmount(Integer.valueOf(m.group(3)));
        }
        return stack;
      }
    }
 catch (    Exception e) {
    }
    try {
      String material=m.group(1).toUpperCase();
      if (aH.matchesInteger(material)) {
        stack=new dItem(Integer.valueOf(material));
      }
 else {
        stack=new dItem(Material.valueOf(material));
      }
      if (m.group(2) != null) {
        stack.setDurability(Short.valueOf(m.group(2)));
      }
      if (m.group(3) != null) {
        stack.setAmount(Integer.valueOf(m.group(3)));
      }
      return stack;
    }
 catch (    Exception e) {
      if (!string.equalsIgnoreCase("String_Node_Str"))       dB.log("String_Node_Str" + string);
    }
  }
  if (!nope)   dB.log("String_Node_Str" + string);
  return null;
}

Fixed version (ground truth):
/** 
 * Gets a Item Object from a string form.
 * @param string  The string or dScript argument String
 * @param player  The dPlayer to be used for player contextswhere applicable.
 * @param npc     The dNPC to be used for NPC contextswhere applicable.
 * @return  an Item, or null if incorrectly formatted
 */
@ObjectFetcher("String_Node_Str") public static dItem valueOf(String string,dPlayer player,dNPC npc){
  if (string == null)   return null;
  Matcher m;
  dItem stack=null;
  final Pattern item_by_entity_id=Pattern.compile("String_Node_Str");
  m=item_by_entity_id.matcher(string);
  if (m.matches()) {
    for (    World world : Bukkit.getWorlds()) {
      for (      Entity entity : world.getEntitiesByClass(Item.class)) {
        if (entity.getEntityId() == Integer.valueOf(m.group(2))) {
          stack=new dItem(((Item)entity).getItemStack());
          if (m.group(3) != null) {
            stack.setAmount(Integer.valueOf(m.group(3)));
          }
          return stack;
        }
      }
    }
  }
  final Pattern item_by_saved=Pattern.compile("String_Node_Str");
  m=item_by_saved.matcher(string);
  if (m.matches() && NotableManager.isSaved(m.group(2)) && NotableManager.isType(m.group(2),dItem.class)) {
    stack=(dItem)NotableManager.getSavedObject(m.group(2));
    if (m.group(3) != null) {
      stack.setAmount(Integer.valueOf(m.group(3)));
    }
    return stack;
  }
  string=string.replace("String_Node_Str","String_Node_Str");
  m=ITEM_PATTERN.matcher(string);
  if (m.matches()) {
    try {
      if (ScriptRegistry.containsScript(m.group(1),ItemScriptContainer.class)) {
        stack=ScriptRegistry.getScriptContainerAs(m.group(1),ItemScriptContainer.class).getItemFrom(player,npc);
      }
 else       if (ScriptRegistry.containsScript(m.group(1),BookScriptContainer.class)) {
        stack=ScriptRegistry.getScriptContainerAs(m.group(1),BookScriptContainer.class).getBookFrom(player,npc);
      }
      if (stack != null) {
        if (m.group(3) != null) {
          stack.setAmount(Integer.valueOf(m.group(3)));
        }
        return stack;
      }
    }
 catch (    Exception e) {
    }
    try {
      String material=m.group(1).toUpperCase();
      if (aH.matchesInteger(material)) {
        stack=new dItem(Integer.valueOf(material));
      }
 else {
        stack=new dItem(dMaterial.valueOf(material).getMaterial());
      }
      if (m.group(2) != null) {
        stack.setDurability(Short.valueOf(m.group(2)));
      }
      if (m.group(3) != null) {
        stack.setAmount(Integer.valueOf(m.group(3)));
      }
      return stack;
    }
 catch (    Exception e) {
      if (!string.equalsIgnoreCase("String_Node_Str"))       dB.log("String_Node_Str" + string);
    }
  }
  if (!nope)   dB.log("String_Node_Str" + string);
  return null;
}