code: public static <O> boolean eq( O o1, O o2 )
      {
          return o1 != null ? o1.equals( o2 ) : o2 == null;
      }
docs: Verifies input objects are equal.
  
  @param o1 the first argument to compare
  @param o2 the second argument to compare
  @return true, if the input arguments are equal, false otherwise.