Question about marshaling

[fralik]

I am trying to marshal the following call:

 unsigned long
 BaseInitiateShutdown(
     [ in, unique ] PREGISTRY_SERVER_NAME ServerName,
     [ in, unique ] PREG_UNICODE_STRING lpMessage,
     [ in ] unsigned long dwTimeout,
     [ in ] unsigned char bForceAppsClosed,
     [ in ] unsigned char bRebootAfterShutdown
     );

Is it the right thing to do it so:

private final WChar.NullTerminated serverName;
private final RPCUnicodeString.NullTerminated messageToUser;
private final long timeout;
private final boolean forceAppsClosed;
private final boolean rebootAfterShutdown;

public void marshal(PacketOutput packetOut) throws IOException {
    if (packetOut.writeReferentID(this.serverName)) {
        packetOut.writeMarshallable(serverName);
        packetOut.align(Alignment.FOUR);
    }
    // <NDR: struct> [in, unique] PREG_UNICODE_STRING lpMessage
    packetOut.writeMarshallable(this.messageToUser);
    packetOut.align(Alignment.EIGHT);

    // <NDR: unsigned long> [in] unisnged long dwTimeout
    packetOut.writeLong(timeout);
    
    // <NDR: unsigned char> [in] unsigned char bForceAppsClosed
    packetOut.writeBoolean(forceAppsClosed);
    
    // <NDR: unsigned char> [in] unsigned char bRebootAfterShutdown
    packetOut.writeBoolean(rebootAfterShutdown);
}

It seems like the first entity (serverName) writes OK, but the rest is not. Remote PC shuts down OK, but messageToUser and other parameters have no effect.