code: private void initPermissionsForPrincipal(JsonEntityBean principal) {
          permissions.add(
                  principal.getTypeAndIdHash()
                          + "_"
                          + PortletAdministrationHelper.PortletPermissionsOnForm.BROWSE
                                  .getActivity());
          permissions.add(
                  principal.getTypeAndIdHash()
                          + "_"
                          + PortletAdministrationHelper.PortletPermissionsOnForm.SUBSCRIBE
                                  .getActivity());
      }
docs: Sets the default collection of permissions for newly-added principals. They are BROWSE and
  SUBSCRIBE.
  
  @since 5.0