public void flush() throws IOException {
  if (closed) {
    return;
  }
  if (gzipstream != null) {
    gzipstream.flush();
  }
}

public void flush ( ) throws IOException { if ( closed ) { return ; } if ( gzipstream != null ) { gzipstream . flush ( ) ; } }
flush any buffered data for this output stream , which also causes the response to be committed .
