Java objects compare with null cases?

Question

Is there any ready implementation of method

public static boolean equals(Object o1, Object o2) {
   return o1==null && o2==null || o1!=null && o2!=null && o1.equals(o2);
}

somewhere in JRE/JDK?

Answer 1

If you are on JDK 7..

Objects.equals(a,b)

That's Objects with an s, which is in java.util, as in the utility library for objects, similar to Collections with an s and Arrays with an s.