assertThat(getOnlyElement(results)).isInstanceOf(TrustedListenableFutureTask.class);

    /*
     * TODO(cpovirk): move ForwardingTestCase somewhere common, and use it to
     * test the forwarded methods
     */
  }

  @AndroidIncompatible // Mocking ExecutorService is forbidden there. TODO(b/218700094): Don't mock.
  public void testListeningDecorator_noWrapExecuteTask() {

    /**
     * Gets the client IP address from the request.
     * Checks X-Forwarded-For header before using remote address.
     *
     * @param request the HTTP servlet request
     * @return the client IP address
     */
    public String getClientIp(final HttpServletRequest request) {
        final String value = request.getHeader("x-forwarded-for");
        if (StringUtil.isNotBlank(value)) {
            return value;

    assertThat(getOnlyElement(results)).isInstanceOf(TrustedListenableFutureTask.class);

    /*
     * TODO(cpovirk): move ForwardingTestCase somewhere common, and use it to
     * test the forwarded methods
     */
  }

  @AndroidIncompatible // Mocking ExecutorService is forbidden there. TODO(b/218700094): Don't mock.
  public void testListeningDecorator_noWrapExecuteTask() {

        final String secure = fessConfig.getCookieSearchParameterSecure();
        if (StringUtil.isBlank(secure)) {
            final String forwardedProto = request.getHeader("X-Forwarded-Proto");
            if ("https".equalsIgnoreCase(forwardedProto)) {
                return true;
            }
            return request.isSecure();
        }

    }

    private List<Multiset.Entry<E>> snapshot() {
      List<Multiset.Entry<E>> list = newArrayListWithExpectedSize(size());
      // Not Iterables.addAll(list, this), because that'll forward right back here.
      Iterators.addAll(list, iterator());
      return list;
    }
  }

  /**
   * @serialData the ConcurrentMap of elements and their counts.
   */

- Revised error handling for port forwards to Pods. Added stream resets preventing port-forward from blockage. ([#128681](https://github.com/kubernetes/kubernetes/pull/128681), [@soltysh](https://github.com/soltysh)) [SIG API Machinery, CLI and Testing]

- Added a new CLI flag `--emulation-forward-compatible`
  Added a new CLI `--runtime-config-emulation-forward-compatible` ([#130354](https://github.com/kubernetes/kubernetes/pull/130354), [@siyuanfoundation](https://github.com/siyuanfoundation)) [SIG API Machinery, Etcd and Testing]

  If you maintain controllers that previously relied on matchLabelKeys (for instance, to simulate scheduling), 
  you likely no longer need to handle matchLabelKeys directly. Instead, you can just rely on the labelSelector field going forward.
  
  Additionally, a new feature gate `MatchLabelKeysInPodTopologySpreadSelectorMerge`, which is enabled by default, has been