code: public void add(byte b, Collection c) {
  		if ((c != null) && (c.size() > 0)) {
  			String s2 = get(b);
              for (Object aC : c) {
                  String s = (String) aC;
                  if (s2 == null)
                      s2 = s;
                  else
                      s2 += lineSeparator + s;
              }
  			set(b, s2);
  		}
  	}
docs: Add each element of collection c as new lines in field b