Method deepEquals

lib/java/util/Arrays.java:1428–1443

Returns true if the two given arrays are deeply equal to one another. Unlike the method equals(Object[] array1, Object[] array2), this method is appropriate for use for nested arrays of arbitrary depth. Two array references are considered deeply equal if they are both {@code null

(Object[] array1, Object[] array2)

     *         equal according to {@code equals()}, {@code false} otherwise.
     */
    public static boolean deepEquals(Object[] array1, Object[] array2) {
        if (array1 == array2) {
            return true;
        }
        if (array1 == null || array2 == null || array1.length != array2.length) {
            return false;
        }
        for (int i = 0; i < array1.length; i++) {
            Object e1 = array1[i], e2 = array2[i];

            if (!deepEqualsElements(e1, e2)) {
                return false;
            }
        }
        return true;
    }

    private static boolean deepEqualsElements(Object e1, Object e2) {
        Class<?> cl1, cl2;