docs: public boolean exists() {
  		// Try file existence: can we find the file in the file system?
  		try {
  			return getFile().exists();
  		}
  		catch (IOException ex) {
  			// Fall back to stream existence: can we open the stream?
  			try {
  				InputStream is = getInputStream();
  				is.close();
  				return true;
  			}
  			catch (Throwable isEx) {
  				return false;
  			}
  		}
  	}