RFR: 8199927: Make WhiteBox more GC agnostic

[Aleksey Shipilev]

On 03/21/2018 03:50 PM, Per Liden wrote:
> Updated webrev to reflect that GCSelector changed name to GCConfig in the patch for JDK-8199925.
> 
> http://cr.openjdk.java.net/~pliden/8199927/webrev.1

Looks good to me.

This is a little dizzy, because I would have expected gc.isSelected() would tell me exactly what GC
was being selected:

 isAcceptable = gc.isSupported() && (gc.isSelected() || GC.isSelectedErgonomically());

...so it should be just:

 for (GC gc : GC.values()) {
   map.put("vm.gc." + gc.name(), "" + gc.isSelected());
 }

?

Thanks,
-Aleksey

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