docs: public Set<I_CmsPrincipal> readResponsiblePrincipals(CmsRequestContext context, CmsResource resource)
      throws CmsException {
  
          Set<I_CmsPrincipal> result = null;
          CmsDbContext dbc = m_dbContextFactory.getDbContext(context);
          try {
              result = m_driverManager.readResponsiblePrincipals(dbc, resource);
          } catch (Exception e) {
              dbc.report(
                  null,
                  Messages.get().container(Messages.ERR_READ_RESPONSIBLE_USERS_1, resource.getRootPath()),
                  e);
          } finally {
              dbc.clear();
          }
          return result;
      }