RFR: 8240773: JFR: Non-Java threads are not serialized

[Stefan Karlsson]

Hi all,

Please review this patch to fix JFR serialization of non-java threads.

https://cr.openjdk.java.net/~stefank/8240773/webrev.01/
https://bugs.openjdk.java.net/browse/JDK-8240773

I noticed that most of our non-java threads were missing in the thread 
views. It turns out that the non-java thread iterator is broken. I've 
been using the patch lately to get back all ZGC and VM threads.

Thanks,
StefanK