docs: private boolean isAccessPrecluded(HttpConstraintElement httpConstraint) {
          boolean accessPrecluded = false;
          String[] roles = httpConstraint.getRolesAllowed();
          if (roles == null || roles.length == 0) {
              if (EmptyRoleSemantic.DENY == httpConstraint.getEmptyRoleSemantic())
                  accessPrecluded = true;
          }
          return accessPrecluded;
      }