RFR 8214568: Use {@systemProperty} for definitions of system properties

[Weijun Wang]

Ping again.

This is an RFE so needs to be fixed today unless we request for an approval.

Thanks,
Max

> On Dec 7, 2018, at 11:21 PM, Weijun Wang <weijun.wang at oracle.com> wrote:
> 
> Please take a review at
> 
>   https://cr.openjdk.java.net/~weijun/8214568/webrev.00
> 
> Thanks
> Max