docs: protected void cacheRemove(IAuthorizationPrincipal ap) throws AuthorizationException {
          try {
              EntityCachingService.getEntityCachingService()
                      .remove(this.PERMISSION_SET_TYPE, ap.getPrincipalString());
          } catch (CachingException ce) {
              throw new AuthorizationException(
                      "Problem removing permissions for " + ap + " from cache", ce);
          }
      }