RFR 8066777: OptimisticTypesPersistence.java should use Files.readAllBytes instead of getting size and then read

[Hannes Wallnoefer]

+1

Am 2014-12-05 um 15:43 schrieb A. Sundararajan:
> Please review http://cr.openjdk.java.net/~sundar/8066777/ for 
> https://bugs.openjdk.java.net/browse/JDK-8066777.
>
> This fix was suggested by Paul Sandoz by email.
>
> Thanks,
> -Sundar