code: public void forwardToSingleAdminOU() throws ServletException, IOException, CmsException {
  
          List<CmsOrganizationalUnit> orgUnits = getOrgUnits();
  
          if (orgUnits.isEmpty()) {
              OpenCms.getWorkplaceManager().getToolManager().jspForwardTool(this, "/", null);
              return;
          }
  
          Map<String, String[]> params = new HashMap<String, String[]>();
          params.put(A_CmsOrgUnitDialog.PARAM_OUFQN, new String[] {orgUnits.get(0).getName()});
          params.put(CmsDialog.PARAM_ACTION, new String[] {CmsDialog.DIALOG_INITIAL});
  
          OpenCms.getWorkplaceManager().getToolManager().jspForwardTool(this, getForwardToolPath(), params);
      }
docs: Performs a forward to the overview of the single organizational unit the current user
  is allowed to administrate.<p>
  
  @throws ServletException in case of errors during forwarding
  @throws IOException in case of errors during forwarding
  @throws CmsException in case of errors during getting orgunits