What methods should go into a java.util.Objects class in JDK 7?

[Rémi Forax]

Le 09/09/2009 22:40, Joe Darcy a écrit :
> Hello.
>
> For JDK 7, I think it is high-time the platform included a class like 
> java.util.Objects to hold commonly-written utility methods.  For 
> example, a two-argument static equals method that returned true if 
> both arguments are null, returns false is one argument is null, and 
> otherwise returns the result of calling arg1.equals(arg2)  (6797535 
> "Add shared two argument static equals method to the platform").
>
> A static hashCode method returning 0 for null and the value of 
> arg.hashCode() has also been suggested.
>
> A set of
>
>    static int compareTo(int, int)
>    static int compareTo(long, long)
>    ....
>
> methods probably belongs somewhere in the platform too.
>
> What other utility methods would have broad enough use and 
> applicability to go into a common java.util class?
>
> -Joe

Some hashCode builder like:
http://commons.apache.org/lang/api/org/apache/commons/lang/builder/HashCodeBuilder.html
(without the methods that use reflection).

It will force all VMs to have a better escape analysis :)

Rémi