return interruptible ? "enterInterruptibly" : "enter";
  }

  private String tryEnter() {
    return "tryEnter";
  }

  private String enterIf() {
    return interruptible ? "enterIfInterruptibly" : "enterIf";
  }

  private String tryEnterIf() {
    return "tryEnterIf";
  }

  private String enterWhen() {
    return interruptible ? "enterWhen" : "enterWhenUninterruptibly";
  }

   * @since 33.4.0 (but since 28.0 in the JRE flavor)
   */
  @IgnoreJRERequirement // Users will use this only if they're already using Duration.
  public boolean enterIfInterruptibly(Guard guard, Duration time) throws InterruptedException {
    return enterIfInterruptibly(guard, toNanosSaturated(time), NANOSECONDS);
  }

  /**
   * Enters this monitor if the guard is satisfied. Blocks at most the given time acquiring the