public int size() {
        return 0;
    }

    /**
     * Encode this request (no-op since there's no data)
     *
     * @param dst destination buffer
     * @param dstIndex starting offset
     * @return number of bytes written (always 0)
     */
    public int encode(byte[] dst, int dstIndex) {
        // No data to encode
        return 0;
    }

    protected int writeBytesWireFormat(final byte[] dst, int dstIndex) {
        final int start = dstIndex;
        SMBUtil.writeInt2(32, dst, dstIndex);
        SMBUtil.writeInt2(this.notifyFlags, dst, dstIndex + 2);
        dstIndex += 4;

        SMBUtil.writeInt4(this.outputBufferLength, dst, dstIndex);
        dstIndex += 4;

        System.arraycopy(this.fileId, 0, dst, dstIndex, 16);
        dstIndex += 16;

        // Given
        byte[] dst = new byte[256];
        int dstIndex = 0;
        int expectedLength = 50;

        when(messageBlock.encode(dst, dstIndex)).thenReturn(expectedLength);

        // When
        int actualLength = messageBlock.encode(dst, dstIndex);

        // Then
        assertEquals(expectedLength, actualLength);
        verify(messageBlock).encode(dst, dstIndex);
    }

    @Test

        byte[] dst = new byte[6];

        // When
        int bytesWritten = smbComClose.writeParameterWordsWireFormat(dst, 0);

        // Then
        assertEquals(6, bytesWritten);
        assertEquals(fid, SMBUtil.readInt2(dst, 0));
        // lastWriteTime is not written if digest is null, so the remaining bytes should be zero
        assertEquals(0, SMBUtil.readInt4(dst, 2));
    }

    /**

package cmd

import (
	"os"
)

// RenameSys is low level call in case of non-Linux this just uses os.Rename()
func RenameSys(src, dst string) (err error) {
	return os.Rename(src, dst)

        this.setupCount = 2;
    }

    @Override
    protected int writeSetupWireFormat(final byte[] dst, int dstIndex) {
        dst[dstIndex] = this.getSubCommand();
        dstIndex++;
        dst[dstIndex++] = (byte) 0x00;
        dst[dstIndex++] = (byte) 0x00; // no FID
        dst[dstIndex++] = (byte) 0x00;
        return 4;
    }

    @Override

     */
    @Override
    protected int writeParameterWordsWireFormat(final byte[] dst, int dstIndex) {
        final int start = dstIndex;
        SMBUtil.writeInt2(this.fid, dst, dstIndex);
        dstIndex += 2;
        SMBUtil.writeInt2(this.mode, dst, dstIndex);
        dstIndex += 2;
        SMBUtil.writeInt4(this.offset, dst, dstIndex);
        dstIndex += 4;
        return dstIndex - start;
    }

    /**

    public void testWriteParameterWordsWireFormat() {
        // Given
        smbComTreeDisconnect = new SmbComTreeDisconnect(config);
        byte[] dst = new byte[100];
        int dstIndex = 0;

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

        // Then
        assertEquals(0, result);
    }

    /**

     * @param dstIndex the starting index in the destination array
     * @param size the number of hex digits to write (will be left-padded with zeros)
     */
    public static void toHexChars(long val, final char dst[], final int dstIndex, int size) {
        while (size > 0) {
            dst[dstIndex + size - 1] = HEX_DIGITS[(int) (val & 0x000FL)];
            if (val != 0) {

        SMBUtil.writeInt4(this.additionalInformation, dst, dstIndex);
        dstIndex += 4;

        System.arraycopy(this.fileId, 0, dst, dstIndex, 16);
        dstIndex += 16;

        SMBUtil.writeInt2(dstIndex - getHeaderStart(), dst, bufferOffsetOffset);
        final int len = this.info.encode(dst, dstIndex);
        SMBUtil.writeInt4(len, dst, bufferLengthOffset);
        dstIndex += len;