docs: protected void addResourceAceRules(Digester digester, String xpath) {
  
          String xp_ace = xpath + N_ACCESSCONTROL_ENTRIES + "/" + N_ACCESSCONTROL_ENTRY;
          digester.addCallMethod(xp_ace, "addAccessControlEntry");
          digester.addCallMethod(xp_ace + "/" + N_ACCESSCONTROL_PRINCIPAL, "setAcePrincipalId", 0);
          digester.addCallMethod(xp_ace + "/" + N_FLAGS, "setAceFlags", 0);
          String xp_perms = xp_ace + "/" + N_ACCESSCONTROL_PERMISSIONSET + "/";
          digester.addCallMethod(xp_perms + N_ACCESSCONTROL_ALLOWEDPERMISSIONS, "setAcePermissionsAllowed", 0);
          digester.addCallMethod(xp_perms + N_ACCESSCONTROL_DENIEDPERMISSIONS, "setAcePermissionsDenied", 0);
      }