final String[] hosts =
                split(address, ",").get(stream -> stream.map(String::trim).filter(StringUtil::isNotEmpty).toArray(n -> new String[n]));
        final Settings settings = Settings.builder().putList("http.hosts", hosts).build();
        return new HttpClient(settings, null);
    }

    public <T> T get(final Function<FesenClient, ActionFuture<T>> func) {
        int retryCount = 0;
        while (true) {

        final String[] hosts =
                split(host, ",").get(stream -> stream.map(String::trim).filter(StringUtil::isNotEmpty).toArray(n -> new String[n]));
        final Builder builder = Settings.builder().putList("http.hosts", hosts).put("processors", fessConfig.availableProcessors())
                .put("http.heartbeat_interval", fessConfig.getFesenHeartbeatInterval());
        final String username = fessConfig.getFesenUsername();

            // setup path mapping
            final List<String> ptList = new ArrayList<>();
            ptList.add(Constants.PROCESS_TYPE_CRAWLING);
            ptList.add(Constants.PROCESS_TYPE_BOTH);
            pathMappingHelper.setPathMappingList(options.sessionId, pathMappingService.getPathMappingList(ptList));

            // duplicate host
            try {

        result);
    return (int) result;
  }

  /**
   * Returns a big-endian representation of {@code value} in a 4-element byte array; equivalent to
   * {@code ByteBuffer.allocate(4).putInt(value).array()}. For example, the input value {@code
   * 0x12131415} would yield the byte array {@code {0x12, 0x13, 0x14, 0x15}}.
   *

    out[0] = b;
    arraycopy(array, 0, out, 1, array.length);
    return out;
  }

  @GwtIncompatible // java.nio.ByteBuffer
  private static byte[] toByteArray(int h) {
    return ByteBuffer.allocate(4).putInt(h).array();
  }

  public void testNewEnumSet_empty() {
    EnumSet<SomeEnum> copy = newEnumSet(Collections.<SomeEnum>emptySet(), SomeEnum.class);
    assertEquals(EnumSet.noneOf(SomeEnum.class), copy);
  }