public void appendLogs(Appendable output) throws IOException, RunnerException {
  final String url=bindAddress + ':' + port+ "/log/_app";
  final String logContent=sendGet(new URL(url.startsWith("http://") ? url : "http://" + url));
  output.append(String.format("%n====> GWT-code-server.log <===="));
  output.append(logContent);
  output.append(System.lineSeparator());
}

public void appendLogs ( Appendable output ) throws IOException , RunnerException { final String url = bindAddress + ':' + port + "/log/_app" ; final String logContent = sendGet ( new URL ( url . startsWith ( "http://" ) ? url : "http://" + url ) ) ; output . append ( String . format ( "%n====> GWT-code-server.log <====" ) ) ; output . append ( logContent ) ; output . append ( System . lineSeparator ( ) ) ; }
append some log content to output
