*
   * <p>The names are retrieved from the {@code nameSupplier} on the thread that is being renamed
   * right before each task is run. The renaming is best effort, if a {@link SecurityManager}
   * prevents the renaming then it will be skipped but the tasks will still execute.
   *
   * @param executor The executor to decorate
   * @param nameSupplier The source of names for each task
   */

   */
  public void runWithPermissions(Runnable r, Permission... permissions) {
    SecurityManager sm = System.getSecurityManager();
    if (sm == null) {
      r.run();
      Policy savedPolicy = Policy.getPolicy();
      try {
        Policy.setPolicy(permissivePolicy());
        System.setSecurityManager(new SecurityManager());
        runWithPermissions(r, permissions);
      } finally {