2010/1/10 Neal Gafter <n...@gafter.com>: > On Sun, Jan 10, 2010 at 12:14 AM, Paulo Levi <i30...@gmail.com> wrote: >> Just seen the new Objects class in the java.util. >> >> I'd like to ask why does the >> >> public static int hash(Object... values) >> >> method, has the warning: >> Warning: When a single object reference is supplied, the returned value does >> not equal the hash code of that object reference. This value can be computed >> by calling hashCode(Object). >> >> When it could be rewritten as : >> >> public static int hash(Object value1, Object value2, Object... restOfValues) >> >> to avoid that. > > That would make it hard to pass an array. > Hello.
Name "hashForArray" would not be better? If there is need for efficiency improvements other methods can be added to do not force arrays creation for low number of arguments: public static int hash(Object value) public static int hash(Object value, Object value1) public static int hash(Object value, Object value1, Object value3) public static int hash(Object... values) public static int hash() // maybe ? But I'm not sure if we need that, probably time will tell... -- Pozdrowionka. / Regards. Lasu aka Marek Kozieł