How to simplify a null-safe compareTo() implementation?

Question

I\'m implementing compareTo() method for a simple class such as this (to be able to use Collections.sort() and other goodies offered by the Java pl

Answer 1

Another Apache ObjectUtils example. Able to sort other types of objects.

@Override
public int compare(Object o1, Object o2) {
    String s1 = ObjectUtils.toString(o1);
    String s2 = ObjectUtils.toString(o2);
    return s1.toLowerCase().compareTo(s2.toLowerCase());
}