[jdk11u-dev] Integrated: 8274338: com/sun/jdi/RedefineCrossEvent.java failed "assert(m != __null) failed: NULL mirror"

[Zhengyu Gu]

On Thu, 4 Nov 2021 16:32:16 GMT, Zhengyu Gu <zgu at openjdk.org> wrote:

> Backport for parity with Oracle 11.0.15.
> 
> The original patch applies cleanly, but some of CDS tests fail due to following new assertion in `ClassLoaderData::loaded_classes_do()`
> 
> `  // To call this, one must have the MultiArray_lock held, but the _klasses list still has lock free reads.
>   assert_locked_or_safepoint(MultiArray_lock);
> `
> The solution is to take `MultiArray_lock` in `MetaspaceShared::link_and_cleanup_shared_classes()` method
> 
> Test:
> - [x]  tier1

This pull request has now been integrated.

Changeset: 3a351580
Author:    Zhengyu Gu <zgu at openjdk.org>
URL:       https://git.openjdk.java.net/jdk11u-dev/commit/3a3515807cd76b571aa9cf5f19203bca7be7f970
Stats:     9 lines in 3 files changed: 9 ins; 0 del; 0 mod

8274338: com/sun/jdi/RedefineCrossEvent.java failed "assert(m != __null) failed: NULL mirror"

Reviewed-by: phh
Backport-of: 172aed1a2d75756b140cb723133ac5fb67f7745e

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PR: https://git.openjdk.java.net/jdk11u-dev/pull/584