RFR: 8252223: Convert ZPage to use delegating constructor

[Per Liden]

On 8/25/20 9:00 AM, Stefan Karlsson wrote:
> Hi all,
> 
> Please review this small cleanup to change ZPage to use a delegating 
> constructor.
> 
> https://cr.openjdk.java.net/~stefank/8252223/webrev.01
> https://bugs.openjdk.java.net/browse/JDK-8252223

Looks good. I would prefer if lines 33-35 collapsed into a single line. 
You decide, no need for a new webrev in any case.

/Per

> 
> Thanks,
> StefanK