85   int markPos = -1;  field in BufferedReader
215 	    limit = markPos = 0;  in mark()
218 	  markPos = pos;  in mark()
240 	if (markPos < 0)  in reset()
252 	  pos = markPos;  in reset()
318 		  markPos = -1; // read too far - invalidate the mark.  in read()
325 		if (markPos < 0)  in read()
369     if (markPos >= 0 && limit == buffer.length)  in fill()
370       markPos = -1;  in fill()
371     if (markPos < 0)  in fill()
383 	if (markPos == pos)  in fill()
384 	  ++markPos;  in fill()
556 	    markPos = -1;  in skip()