You can't write swap in Java as defined by the article - one that changes the values of the parameters. Your swap only follows the pointers and changes the poin

You can't write swap in Java as defined by the article - one that changes the values of the parameters. Your swap only follows the pointers and changes the pointed-to objects. A valid, real "swap" in Java is one that passes my example code and prints "real pass-by-reference swap" and not "fake pass-by-value swap'.