final int sendBufferSize = th.getSendBufferSize();
        if (this.smb2) {
            this.writeSize = sendBufferSize;
            this.writeSizeFile = sendBufferSize;
            return;
        }

        this.openFlags &= ~(SmbConstants.O_CREAT | SmbConstants.O_TRUNC); /* in case we close and reopen */
        this.writeSize = sendBufferSize - 70;

        this.useNTSmbs = th.hasCapability(SmbConstants.CAP_NT_SMBS);

        byte[] dst = new byte[16];

        // Test with zero time
        SMBUtil.writeTime(0L, dst, 0);
        long writtenValue = SMBUtil.readInt8(dst, 0);
        assertEquals(0L, writtenValue);

        // Test with non-zero time
        long testTime = 1500000000000L; // Unix timestamp in milliseconds
        SMBUtil.writeTime(testTime, dst, 8);
        long writtenTime = SMBUtil.readInt8(dst, 8);

	err = en.Append(0xab, 0x4c, 0x61, 0x73, 0x74, 0x43, 0x6c, 0x65, 0x61, 0x6e, 0x75, 0x70)
	if err != nil {
		return
	}
	if z.LastCleanup == nil {
		err = en.WriteNil()
		if err != nil {
			return
		}
	} else {
		err = en.WriteTime(*z.LastCleanup)
		if err != nil {
			err = msgp.WrapError(err, "LastCleanup")
			return
		}
	}
	return
}

// MarshalMsg implements msgp.Marshaler

    }

    @Override
    int writeDataWireFormat(final byte[] dst, int dstIndex) {
        final int start = dstIndex;

        writeTime(createTime, dst, dstIndex);
        dstIndex += 8;
        writeInt8(0L, dst, dstIndex);
        dstIndex += 8;
        writeTime(lastWriteTime, dst, dstIndex);
        dstIndex += 8;
        writeInt8(0L, dst, dstIndex);
        dstIndex += 8;
        /* Samba 2.2.7 needs ATTR_NORMAL

        SMBUtil.writeInt4(createAction, body, i); // CreateAction
        i += 4;

        SMBUtil.writeTime(ctime, body, i); // CreationTime
        i += 8;
        SMBUtil.writeTime(atime, body, i); // LastAccessTime
        i += 8;
        SMBUtil.writeTime(mtime, body, i); // LastWriteTime
        i += 8;
        SMBUtil.writeTime(chtime, body, i); // ChangeTime
        i += 8;

        // Entry 1
        writeInt4(120, buffer, bufferIndex); // nextEntryOffset = 120 (relative)
        writeInt4(1, buffer, bufferIndex + 4); // fileIndex = 1
        writeTime(1672531200000L, buffer, bufferIndex + 8); // creationTime
        writeTime(1672617600000L, buffer, bufferIndex + 24); // lastWriteTime
        writeInt8(2048, buffer, bufferIndex + 40); // endOfFile

        if (LogStream.level >= 4) {
            SmbFile.log.println("write: fid=" + file.fid + ",off=" + off + ",len=" + len);
        }

        int w;
        do {
            w = len > writeSize ? writeSize : len;
            if (useNTSmbs) {
                reqx.setParam(file.fid, fp, len - w, b, off, w);
                if ((flags & 1) != 0) {
                    reqx.setParam(file.fid, fp, len, b, off, w);

	// write "end"
	err = en.Append(0x8d, 0xa3, 0x65, 0x6e, 0x64)
	if err != nil {
		return
	}
	err = en.WriteTime(z.ended)
	if err != nil {
		err = msgp.WrapError(err, "ended")
		return
	}
	// write "st"
	err = en.Append(0xa2, 0x73, 0x74)
	if err != nil {
		return
	}
	err = en.WriteTime(z.started)
	if err != nil {
		err = msgp.WrapError(err, "started")
		return
	}
	// write "lh"

        // ensure file is open
        if (!file.isOpen()) {
            file.open(openFlags, 0, SmbFile.ATTR_NORMAL, options);
        }

        int w;
        do {
            w = len > writeSize ? writeSize : len;
            file.send(new SmbComWriteAndX(file.fid, fp, len - w, b, off, w, null), write_andx_resp);
            fp += write_andx_resp.count;
            len -= write_andx_resp.count;

        ServerMessageBlock.writeTime(time, buffer, 0);
        long readTime = ServerMessageBlock.readTime(buffer, 0);
        // Precision may be lost, so check within a second
        assertTrue(Math.abs(time - readTime) < 1000);
    }

    @Test
    void testTimeReadWriteZero() {
        byte[] buffer = new byte[8];
        ServerMessageBlock.writeTime(0, buffer, 0);