On Fri, 20 May 2022 08:34:58 GMT, Maxim Kartashev <mkartas...@openjdk.org> 

> Following the logic from the comment directly above the changed line, since 
> it doesn't matter which controller we pick, pick any available controller 
> instead of the one called "memory" specifically. This way we are guarded 
> against getting `null` as `anyController`, which is being immediately passed 
> down to `CgroupV2Subsystem.getInstance()` that is unprepared to accept `null` 
> values. 
> It is also worth noting that the previous checks (such as that at line 89) 
> make sure that there exist at least one controller in the map.

This pull request has now been integrated.

Changeset: 744b822a
Author:    Maxim Kartashev <mkartas...@openjdk.org>
Committer: Ioi Lam <ik...@openjdk.org>
Stats:     4 lines in 1 file changed: 1 ins; 0 del; 3 mod

8287073: NPE from CgroupV2Subsystem.getInstance()

Reviewed-by: vkempik, iklam


PR: https://git.openjdk.java.net/jdk/pull/8803

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