RFR: 8212663: Remove conservative at_safepoint assert when JFR writes type sets during class unloading

[Markus Gronlund]

Hi Erik,

Looks good.

Thanks
Markus

-----Original Message-----
From: Erik Österlund 
Sent: den 18 oktober 2018 17:01
To: hotspot-runtime-dev at openjdk.java.net
Cc: Markus Grönlund <markus.gronlund at oracle.com>; Erik Gahlin <erik.gahlin at oracle.com>
Subject: RFR: 8212663: Remove conservative at_safepoint assert when JFR writes type sets during class unloading

Hi,

JFR writes type sets during class unloading. It currently asserts this is done in a safepoint. But in fact, it suffices that it is done by a single thread. This assert needs to be relaxed for concurrent class unloading.

Webrev:
http://cr.openjdk.java.net/~eosterlund/8212663/webrev.00/

Bug:
https://bugs.openjdk.java.net/browse/JDK-8212663

Thanks,
/Erik