The change of JDK-8287107 failed to fix the hotspot code :( There, the cgroup path would happily set all controllers to the path of a cgroups v1 controller if it so happens that it is being listed *after* the cgroups v2 one.

Example:

$ cat /proc/self/cgroup
0::/foobar
11:freezer:/cg1

The cgroup path would end up being '/cg1' instead of '/foobar'. This can be fairly easy to reproduce with this patch:

diff --git a/src/hotspot/os/linux/cgroupSubsystem_linux.cpp b/src/hotspot/os/linux/cgroupSubsystem_linux.cpp
index 1346cf8915f..7b93e0d5721 100644
--- a/src/hotspot/os/linux/cgroupSubsystem_linux.cpp
+++ b/src/hotspot/os/linux/cgroupSubsystem_linux.cpp
@@ -261,6 +261,8 @@ bool CgroupSubsystemFactory::determine_type(CgroupInfo* cg_infos,
     }
     if (is_cgroupsV2) {
       for (int i = 0; i < CG_INFO_LENGTH; i++) {
+ assert(hierarchy_id == cg_infos[i]._hierarchy_id, "/proc/cgroups (%d) and /proc/self/cgroup (%d) hierarchy mismatch",
+ cg_infos[i]._hierarchy_id, hierarchy_id);
         cg_infos[i]._cgroup_path = os::strdup(cgroup_path);
       }
     }

And running on a fastdebug build:
$ make LOG=debug test TEST="jtreg:test/hotspot/jtreg/containers/cgroup/CgroupSubsystemFactory.java"

It asserts with:

# To suppress the following error report, specify this argument
# after -XX: or in .hotspotrc: SuppressErrorAt=/cgroupSubsystem_linux.cpp:264
#
# A fatal error has been detected by the Java Runtime Environment:
#
# Internal Error (/disk/openjdk/upstream-sources/git/jdk-jdk/src/hotspot/os/linux/cgroupSubsystem_linux.cpp:264), pid=134644, tid=134666
# assert(hierarchy_id == cg_infos[i]._hierarchy_id) failed: /proc/cgroups (0) and /proc/self/cgroup (11) hierarchy mismatch
#
# JRE version: OpenJDK Runtime Environment (19.0) (fastdebug build 19-internal-adhoc.sgehwolf.jdk-jdk)
# Java VM: OpenJDK 64-Bit Server VM (fastdebug 19-internal-adhoc.sgehwolf.jdk-jdk, mixed mode, sharing, tiered, compressed oops, compressed class ptrs, g1 gc, linux-amd64)
# Problematic frame:
# V [libjvm.so+0x95a67c] CgroupSubsystemFactory::determine_type(CgroupInfo*, char const*, char const*, char const*, unsigned char*)+0xd4c