if (usys == null) {
usys = new UnixSystem();
}
usys.load();
user = new UnixPrincipal(usys.getUsername());
uid = new UnixNumericUserPrincipal(usys.getUid());
gid = new UnixNumericGroupPrincipal(usys.getGid(), usys.getGroupName(),
true);
long[] gs = usys.getGroups();
String[] gns = usys.getGroupNames();