public static Set<String> getUsersNotInWorkGroup(Set<Workgroup> workgroupSet) {
UserManager userManager = (UserManager) ContextUtils.getBean("userManager");
Set<Workgroup> allWorkGroup = new HashSet<Workgroup>(userManager.getWorkgroups());
allWorkGroup.removeAll(workgroupSet);
return getUsersByWorkGroup(allWorkGroup);
}
