A DESCRIPTION OF THE PROBLEM :
In our proprietary cloud solution we are using performance optimization for threads like GC, JIT and others providing them free server resources based on special cgroups for such system threads. This done by setting special Linux scheduler priority for JVM system threads using thread_type. This done by small cpp library which loaded as agent on JVM startup. This property seems to be eliminated in 25-th version of Java

Commit https://github.com/openjdk/jdk/commit/f50bd0d
Related issue: https://bugs.openjdk.org/browse/JDK-8341513

Please consider bring this information back or provide workaround for getting such info

REGRESSION : Last worked in version 21.0.8