On Tue, 25 Jul 2023 21:48:24 GMT, Paul Hohensee <p...@openjdk.org> wrote:
> MonitoringSupport_lock is initialized only when UseG1GC is true, but > [JDK-8304074](https://bugs.openjdk.org/browse/JDK-8304074) uses it to > implement getTotalThreadAllocatedBytes, which is available for all garbage > collectors. While the current code sets UseG1GC regardless of which collector > is specified, see FLAG_SET_ERGO_IF_DEFAULT(UseG1GC, true) in gcConfig.cpp, if > G1 isn't included in the Hotspot build or Hotspot is not running on a server > class machine (unlikely these days), the lock will not be initialized. The > lock's initialization should be unconditional. > > I updated ThreadAllocatedMemory.java to run the test using both G1 and Serial > collectors. This pull request has now been integrated. Changeset: a9d21c61 Author: Paul Hohensee <p...@openjdk.org> URL: https://git.openjdk.org/jdk/commit/a9d21c61fb12a11e18c6bb8aa903e5a8e42473f1 Stats: 17 lines in 3 files changed: 12 ins; 2 del; 3 mod 8313081: MonitoringSupport_lock should be unconditionally initialized after 8304074 Reviewed-by: dholmes, sspitsyn, shade ------------- PR: https://git.openjdk.org/jdk/pull/15028
