public Colliders() {
      super(new Collider(1), new Collider(2), new Collider(3), new Collider(4), new Collider(5));
    }
  }

  private static class Collider {
    final int value;

    Collider(int value) {
      this.value = value;
    }

    @Override
    public boolean equals(@Nullable Object obj) {
      return obj instanceof Collider && ((Collider) obj).value == value;
    }

    public Colliders() {
      super(new Collider(1), new Collider(2), new Collider(3), new Collider(4), new Collider(5));
    }
  }

  private static class Collider {
    final int value;

    Collider(int value) {
      this.value = value;
    }

    @Override
    public boolean equals(@Nullable Object obj) {
      return obj instanceof Collider && ((Collider) obj).value == value;
    }