Integrated: 8272417: ZGC: fastdebug build crashes when printing ClassLoaderData

[Tongbao Zhang]

On Fri, 13 Aug 2021 07:14:51 GMT, Tongbao Zhang <github.com+1866174+tbzhang at openjdk.org> wrote:

> Following test fails on fastdebug build with the options: "-XX:+UseZGC -XX:+VerifyAfterGC -Xlog:gc*=trace". It crashes on the unknown claim value of the ClassLoaderData
> 
> public class A {
>     public static void main(String... args) {
>         System.gc();
>     }
> }
> 
> The unknown claim value  of the ClassLoaderData is "ClassLoaderData::_claim_other | ClassLoaderData::_claim_strong" which is introduced by the ZVerifyOopClosure. This patch clears the CLD's claimed marks after the ZGC verification

This pull request has now been integrated.

Changeset: 741f58c1
Author:    Tongbao Zhang <tobytbzhang at tencent.com>
Committer: Stefan Karlsson <stefank at openjdk.org>
URL:       https://git.openjdk.java.net/jdk/commit/741f58c18c3dc49c5e1b793e411d8479770f2772
Stats:     7 lines in 1 file changed: 2 ins; 0 del; 5 mod

8272417: ZGC: fastdebug build crashes when printing ClassLoaderData

Reviewed-by: stefank, pliden

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PR: https://git.openjdk.java.net/jdk/pull/5107