On Thu, 28 Apr 2022 07:19:34 GMT, David Holmes <dhol...@openjdk.org> wrote:
>> Lookup.defineHiddenClass allows class options to be specified, one of which >> is "STRONG" to mean that the hidden class can't unloaded if its defining >> loader is reachable. >> >> A static reference or a reachability fence should work for this test. > > By default hidden classes are non-strong and can be unloaded when no longer > referenced, even if their classloader is still reachable. As you want the > hidden class to stick around so it can be reported in the stats then either > keep a reference (as you have) or else create it as a STRONG hidden class. I'm ok with the changes but would like to see the comment fixed. It looks like it should be: "Create a hidden non-strong class. Keep a reference in case a GC happens." ------------- PR: https://git.openjdk.java.net/jdk/pull/8438
