//Check API for these - it's how CVS does it...
if (P4Port != null && P4Port.length() != 0) {
commandline.createArgument().setValue(P4Port);
}
if (P4User != null && P4User.length() != 0) {
commandline.createArgument().setValue(P4User);
}
if (P4Client != null && P4Client.length() != 0) {
commandline.createArgument().setValue(P4Client);
}
if (P4Opts != null && P4Opts.length() != 0) {