Example comparing strings not lexicographically

gistfile1.txt

    void sortList(@SuppressWarnings("SameParameterValue") final boolean isAsc, List<String> contentItems) {
        Collections.sort(contentItems, new Comparator<String>() {
            @Override
            public int compare(String str1, String str2) {
                if (str1 == null || str2 == null) {
                    return 0;
                }
                //noinspection StringEquality
                if (str1 == str2) {
                    return 0;
                }
                for (int i = 0; i < str1.length() && i < str2.length(); i++) {
                    char c1 = str1.charAt(i);
                    char c2 = str2.charAt(i);

                    if (str1.length() != str2.length() && (i == str1.length() - 1 || i == str2.length() - 1)) {
                        return isAsc? str1.length() - str2.length() : str2.length() - str1.length();
                    }
                    if (c1 < c2) {
                        return isAsc ? -1 : 1;
                    } else if (c1 > c2) {
                        return isAsc ? 1 : -1;
                    }
                }
                return 0;
            }
        });
    }