if (allStudentGroups.size() != 0) {
infoSiteStudentGroupsList = new ArrayList<InfoSiteStudentGroup>();
Iterator iterGroups = allStudentGroups.iterator();
while (iterGroups.hasNext()) {
InfoSiteStudentGroup infoSiteStudentGroup = new InfoSiteStudentGroup();
InfoStudentGroup infoStudentGroup = new InfoStudentGroup();
infoStudentGroup = InfoStudentGroup.newInfoFromDomain((StudentGroup) iterGroups.next());
infoSiteStudentGroup.setInfoStudentGroup(infoStudentGroup);
infoSiteStudentGroupsList.add(infoSiteStudentGroup);
}
Collections.sort(infoSiteStudentGroupsList, InfoSiteStudentGroup.COMPARATOR_BY_NUMBER);