@Override
    protected void doStop() {
      notifyFailed(new IllegalStateException("stop failure"));
    }
  }

  public void testServiceStartupTimes() {
    if (isWindows() && isJava8()) {
      // Flaky there: https://github.com/google/guava/pull/6731#issuecomment-1736298607
      return;
    }
    Service a = new NoOpDelayedService(150);
    Service b = new NoOpDelayedService(353);

    @Override
    protected void doStop() {
      notifyFailed(new IllegalStateException("stop failure"));
    }
  }

  public void testServiceStartupTimes() {
    if (isWindows() && isJava8()) {
      // Flaky there: https://github.com/google/guava/pull/6731#issuecomment-1736298607
      return;
    }
    Service a = new NoOpDelayedService(150);
    Service b = new NoOpDelayedService(353);

         */
        String httpsProtocols = System.getProperty(HTTPS_PROTOCOLS);
        if (httpsProtocols != null) {
            return httpsProtocols.split(",");
        } else if (JavaVersion.current().isJava8() && Jvm.current().isIbmJvm()) {
            return new String[]{"TLSv1.2"};
        } else if (jdkSupportsTLSProtocol("TLSv1.3")) {
            return new String[]{"TLSv1.2", "TLSv1.3"};
        } else {