public override int lastIndexOf(object @object){int pos = _size;java.util.LinkedList.Link<E> link = voidLink.previous;if (@object != null){while (link != voidLink){pos--;if (@object.Equals(link.data)){return pos;}link = link.previous;}}else{while (link != voidLink){pos--;if ((object)link.data == null){return pos;}link = link.previous;}}return -1;}