docs: public Set visibleGrantees() {
  
          HashSet        grantees = new HashSet();
          GranteeManager gm       = granteeManager;
  
          if (isAdmin()) {
              grantees.addAll(gm.getGrantees());
          } else {
              grantees.add(this);
  
              Iterator it = getAllRoles().iterator();
  
              while (it.hasNext()) {
                  grantees.add(it.next());
              }
          }
  
          return grantees;
      }