RFR: JDK-8221086: Shenandoah-specific workaround for JDK-8220671

[Aleksey Shipilev]

On 3/19/19 7:23 PM, Roman Kennke wrote:
> Webrev:
> http://cr.openjdk.java.net/~rkennke/JDK-8221086/webrev.01/

Code needs comment mentioning what is being worked around, e.g.:
 "// Join STS to workaround the initialization race, see JDK-8220671"

Otherwise looks good.

-Aleksey