8209960: -Xlog:jfr* doesn't work with the JFR parser

[Erik Gahlin]

Hi,

Could I please have a review of this fix to the JFR logging.

Bug:
https://bugs.openjdk.java.net/browse/JDK-8209960

Webrev:
http://cr.openjdk.java.net/~egahlin/8209960/

Testing:
test\jdk\jdk\jfr

Thanks
Erik