RFR: [XS] 8234625: hs test serviceability/sa/ClhsdbCDSCore.java fails on macOS 10.15

[Langer, Christoph]

Hi Matthias,

> And there’s one last thing what I was thinking about: Is it really necessary
> that /cores is writable for the user? Maybe the system can still write a core
> into /cores? I’m trying to verify this now on my Catalina MacBook… will let
> you know.

I checked that - the writability check is required ��

/Christoph