RFR : 8211326 : add OS user related information to hs_err file

[Langer, Christoph]

Hi,

> I'm hoping others will chime in here as I:
> 
> a) don't know if this information is actually useful for an error log of
> this kind;

I remember quite a few times when I was working on a customer ticket and found this information very helpful (we've already had this for quite a while in our SAP JVM).


> b) don't know if the information might be considered sensitive or not; and

I guess this is kind of sensitive information, for sure. However, it's probably not more sensitive than lots of other information you'll find in a hs-err file, e.g. register and memory contents, paths etc. So in my opinion we should not be overly concerned with this point.

> c) don't think it's worth the effort of adding a flag to control this.
> Plus the flag is only useful for trying to reproduce an issue; if it's a
> one-of failure then you've already missed out on the information in the
> log file.

I'd prefer if we could get this piece of information in unconditionally. But if it's the only way to introduce this behind a flag, then so be it. (We'd probably enable the flag by default for our SapMachine OpenJDK builds that we'll need to support.)

Best regards
Christoph