*/
    @Test
    void testMng6572() {
        String a = "20190126.230843"; // resembles a SNAPSHOT
        String b = "1234567890.12345"; // 10 digit number
        String c = "123456789012345.1H.5-beta"; // 15 digit number
        String d = "12345678901234567890.1H.5-beta"; // 20 digit number

        checkVersionsOrder(a, b);
        checkVersionsOrder(b, c);
        checkVersionsOrder(a, c);
        checkVersionsOrder(c, d);

 * <ul>
 * <li>mixing of '<code>-</code>' (hyphen) and '<code>.</code>' (dot) separators,</li>
 * <li>transition between characters and digits also constitutes a separator:
 *     <code>1.0alpha1 =&gt; [1, [alpha, 1]]</code></li>
 * <li>unlimited number of version components,</li>
 * <li>version components in the text can be digits or strings,</li>
 * <li>strings are checked for well-known qualifiers and the qualifier ordering is used for version ordering.

        if ((s.length() > 1) && s.startsWith("0")) {
            return null;
        }
        return tryParseInt(s);
    }

    private static Integer tryParseInt(String s) {
        // for performance, check digits instead of relying later on catching NumberFormatException
        if (!isDigits(s)) {
            return null;
        }

        try {
            long longValue = Long.parseLong(s);