As reported to serviceability-dev mailing list:

http://mail.openjdk.java.net/pipermail/serviceability-dev/2020-July/032250.html

https://github.com/openjdk/jdk/blob/d34f561de002510c818c73cd5871caf2222ca0a7/src/jdk.jcmd/share/man/jstat.1#L227

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