}

  /** An implementation of {@link Multiset#setCount(Object, int)}. */
  static <E extends @Nullable Object> int setCountImpl(
      Multiset<E> self, @ParametricNullness E element, int count) {
    checkNonnegative(count, "count");

    int oldCount = self.count(element);

    int delta = count - oldCount;
    if (delta > 0) {
      self.add(element, delta);

    private static class TestSessionServicePacket extends SessionServicePacket {
        int trailerLength = 10; // Default trailer length for testing
        int trailerBytesRead = 0;

        @Override
        int writeTrailerWireFormat(byte[] dst, int dstIndex) {
            // Simple mock implementation
            for (int i = 0; i < trailerLength && dstIndex + i < dst.length; i++) {
                dst[dstIndex + i] = (byte) i;

      return new JavaNioCreator();
    } catch (ClassNotFoundException runningUnderAndroid) {
      // Try another way.
    }

    try {
      int version = (int) Class.forName("android.os.Build$VERSION").getField("SDK_INT").get(null);
      int jellyBean =
          (int) Class.forName("android.os.Build$VERSION_CODES").getField("JELLY_BEAN").get(null);
      /*

    @Override
    protected void setUp(TestInfo testInfo) throws Exception {
        super.setUp(testInfo);
        popularWordHelper = new PopularWordHelper() {
            @Override
            public void init() {
                fessConfig = new FessConfig.SimpleImpl() {
                    @Override
                    public Integer getSuggestPopularWordCacheSizeAsInteger() {
                        return 1000;

            for (int i = 0; i < 100; i++) {
                int bytesRead = response.readBytesWireFormat(buffer, 0);
                // Then
                assertEquals(4, bytesRead, "Failed at iteration " + i);
            }

            // When - perform multiple write operations
            for (int i = 0; i < 100; i++) {
                int bytesWritten = response.writeBytesWireFormat(buffer, 0);

    }
  }

  @Throws(IOException::class)
  open fun connectSocket(
    socket: Socket,
    address: InetSocketAddress,
    connectTimeout: Int,
  ) {
    socket.connect(address, connectTimeout)
  }

  open fun log(
    message: String,
    level: Int = INFO,
    t: Throwable? = null,
  ) {
    val logLevel = if (level == WARN) Level.WARNING else Level.INFO
    logger.log(logLevel, message, t)
  }

      return forwardList;
    }

    private int reverseIndex(int index) {
      int size = size();
      checkElementIndex(index, size);
      return (size - 1) - index;
    }

    private int reversePosition(int index) {
      int size = size();
      checkPositionIndex(index, size);
      return size - index;
    }

    @Override
    public void add(int index, @ParametricNullness T element) {

      expectFailure(platformMatches(OPENJSSE_PROPERTY))
    }

    fun expectFailureFromJdkVersion(majorVersion: Int) {
      if (!TestUtil.isGraalVmImage) {
        expectFailure(fromMajor(majorVersion))
      }
    }

    fun expectFailureOnJdkVersion(majorVersion: Int) {
      if (!TestUtil.isGraalVmImage) {
        expectFailure(onMajor(majorVersion))
      }
    }

     * cached response older than 24 hours, we are required to attach a warning.
     */
    private fun isFreshnessLifetimeHeuristic(): Boolean = cacheResponse!!.cacheControl.maxAgeSeconds == -1 && expires == null

    init {
      if (cacheResponse != null) {
        this.sentRequestMillis = cacheResponse.sentRequestAtMillis
        this.receivedResponseMillis = cacheResponse.receivedResponseAtMillis
        val headers = cacheResponse.headers

            // Verify each is a power of 2
            for (int cap : capabilities) {
                assertTrue(isPowerOfTwo(cap), "Capability 0x" + Integer.toHexString(cap) + " should be a power of 2");
            }

            // Verify no overlapping bits
            for (int i = 0; i < capabilities.length; i++) {
                for (int j = i + 1; j < capabilities.length; j++) {