code: static public void skip(InputStream is, int size) throws IOException {
  	    long n;
  		while (size > 0) {
  	        n = is.skip(size);
  	        if (n <= 0)
  	            break;
  			size -= n;
  		}
  	}
docs: This method is an alternative for the <CODE>InputStream.skip()</CODE>
  -method that doesn't seem to work properly for big values of <CODE>size
  </CODE>.
  
  @param is
  the <CODE>InputStream</CODE>
  @param size
  the number of bytes to skip
  @throws IOException