hg: jdk/jdk: 8243936: NonWriteable system properties are actually writeable

[david.holmes at oracle.com]

Changeset: 4dc557899b4e
Author:    dholmes
Date:      2020-05-28 02:58 -0400
URL:       https://hg.openjdk.java.net/jdk/jdk/rev/4dc557899b4e

8243936: NonWriteable system properties are actually writeable
Reviewed-by: iklam, dcubed

! src/hotspot/share/runtime/arguments.cpp
! src/hotspot/share/runtime/arguments.hpp
+ test/hotspot/jtreg/runtime/NonWriteableProperty.java