final int chunkSize;
    final int bufferSize;
    final ByteArrayOutputStream out = new ByteArrayOutputStream();

    int processCalled = 0;
    boolean remainingCalled = false;

    Sink(int chunkSize, int bufferSize) {
      super(chunkSize, bufferSize);
      this.chunkSize = chunkSize;
      this.bufferSize = bufferSize;
    }

    Sink(int chunkSize) {
      super(chunkSize);

        private final List<byte[]> cache;
        private final int bufferSize;
        private final int maxBuffers;

        public TestBufferCacheImpl(int maxBuffers, int bufferSize) {
            this.maxBuffers = maxBuffers;
            this.bufferSize = bufferSize;
            this.cache = new ArrayList<>(maxBuffers);
        }

        @Override

    T[] castBuffer = (T[]) buffer;
    sort(castBuffer, 0, bufferSize, comparator);
    if (bufferSize > k) {
      Arrays.fill(buffer, k, buffer.length, null);
      bufferSize = k;
      threshold = buffer[k - 1];
    }
    // Up to bufferSize, all elements of buffer are real Ts (not null unless T includes null)
    T[] topK = Arrays.copyOf(castBuffer, bufferSize);
    // we have to support null elements, so no ImmutableList for us

        // Given
        smbComTreeDisconnect = new SmbComTreeDisconnect(config);
        int[] bufferSizes = { 0, 10, 50, 100, 1024 };

        for (int bufferSize : bufferSizes) {
            byte[] dst = new byte[bufferSize];

            // When
            int result = smbComTreeDisconnect.writeParameterWordsWireFormat(dst, 0);

            // Then

        @DisplayName("Should handle various buffer configurations")
        void testVariousBufferConfigurations(int bufferSize, int offset, int length) {
            byte[] buffer = new byte[bufferSize];
            FileFsSizeInformation info = new FileFsSizeInformation();

            if (offset + length <= bufferSize && length >= 24) {
                assertDoesNotThrow(() -> {
                    info.decode(buffer, offset, length);

        int bufferSize;
        if (initialCapacity > 0 && initialCapacity <= MAX_BUF_SIZE) {
            bufferSize = initialCapacity;
        } else {
            bufferSize = DEFAULT_BUF_SIZE;
        }
        char[] buf = new char[bufferSize];
        int size = 0;
        int len;
        try {
            while ((len = reader.read(buf, size, bufferSize - size)) != -1) {

     *
     * @param process the system process to wrap
     * @param bufferSize the buffer size for reading process output
     * @param outputCallback the callback function to handle process output lines
     */
    public JobProcess(final Process process, final int bufferSize, final Consumer<String> outputCallback) {
        this.process = process;

   * [WindowCounter] generally carries the client view of total and acked bytes.
   */
  fun receivingStreamWindowChanged(
    streamId: Int,
    windowCounter: WindowCounter,
    bufferSize: Long,
  )

  /**
   * Notification that the receiving connection flow control window has changed.
   * [WindowCounter] generally carries the client view of total and acked bytes.
   */

    T[] castBuffer = (T[]) buffer;
    sort(castBuffer, 0, bufferSize, comparator);
    if (bufferSize > k) {
      Arrays.fill(buffer, k, buffer.length, null);
      bufferSize = k;
      threshold = buffer[k - 1];
    }
    // Up to bufferSize, all elements of buffer are real Ts (not null unless T includes null)
    T[] topK = Arrays.copyOf(castBuffer, bufferSize);
    // we have to support null elements, so no ImmutableList for us

   */
  ReaderInputStream(Reader reader, CharsetEncoder encoder, int bufferSize) {
    this.reader = checkNotNull(reader);
    this.encoder = checkNotNull(encoder);
    checkArgument(bufferSize > 0, "bufferSize must be positive: %s", bufferSize);
    encoder.reset();

    charBuffer = CharBuffer.allocate(bufferSize);
    Java8Compatibility.flip(charBuffer);

    byteBuffer = ByteBuffer.allocate(bufferSize);