* @param itemId : int designating the ID of the item
*/
public L2ItemInstance(int objectId, int itemId)
{
super(objectId);
super.setKnownList(new NullKnownList(this));
_itemId = itemId;
_item = ItemTable.getInstance().getTemplate(itemId);
if (_itemId == 0 || _item == null)
throw new IllegalArgumentException();
_count = 1;