public EList getReceivedPrivilege() {
   synchronized (recievedPrivilegeLoaded) {
     if (!recievedPrivilegeLoaded.booleanValue()) {
       List receivedPrivileges = serverRole.getReceivedPrivileges(catalog.getName());
       super.getReceivedPrivilege().clear();
       super.getReceivedPrivilege().addAll(receivedPrivileges);
       recievedPrivilegeLoaded = Boolean.TRUE;
     }
   }
   return super.getReceivedPrivilege();
 }
 public void refresh() {
   synchronized (recievedPrivilegeLoaded) {
     recievedPrivilegeLoaded = Boolean.FALSE;
     super.getReceivedPrivilege().clear();
     serverRole.clearReceivedPrivileges(catalog.getName());
   }
   RefreshManager.getInstance().referesh(this);
 }