@Override
    public void deletePermissions(ModeledAuthenticatedUser user,
            ModeledPermissions<? extends EntityModel> targetEntity,
            Collection<ObjectPermission> permissions)
            throws GuacamoleException {

        // Deleting active connection permissions is not implemented
        throw new GuacamoleSecurityException("Permission denied.");

    }
Provider for active connection permission sets.
extensions/guacamole-auth-jdbc/modules/guacamole-auth-jdbc-base/src/main/java/org/apache/guacamole/auth/jdbc/activeconnection/ActiveConnectionPermissionService.java