RFR (S): CR 8005926: (thread) Merge ThreadLocalRandom state into java.lang.Thread

[Dr Heinz M. Kabutz]

Chris Hegarty wrote:
> Updated webrev:
>   http://cr.openjdk.java.net/~chegar/8005926/webrev.01/webrev/
>
>  * based on Aleksey initial webrev
>  * applied serialPersistentFields, writeObject, readResolve
>    ( as suggested by Heinz )
>  * did not apply readObject. It is unnecessary, defaultReadObject
>    will read all the fields off the stream
>
> readResolve is necessary to give us "good" behavior ( as noted 
> previously ).
>
> Once integrated, I will file a new bug to track the possible change of 
> serialized form of TLR, and this can then remove 
> serialPersistentFields and writeObject, if successful.
>
> -Chris.
Looks good to me too.