Remove the assert in Integer.valueOf()

[Ulf Zibis]

Am 23.04.2012 19:35, schrieb Rémi Forax:
> Hi guys,
> I've found a case where assert is harmful because it doesn't
> play well with Hotspot inlining heuristic.
> [...]
> I think it's a good idea to comment this assert.

While you are there:
IntegerCache.cache/high/low are static final, so should be named _upper case_.

Another optimization:
     public static Integer valueOf(int i) {
         if (i >= 0) {
             if (i <= IntegerCache.HIGH)
                 return IntegerCache.POS[i];
         } else {
             if (i >= IntegerCache.LOW)
                 return IntegerCache.NEG[~i];
         }
         return new Integer(i);
     }


-Ulf