Integrated: 8344824: CDS dump crashes when member_method of a lambda proxy is null

[Ioi Lam]

On Fri, 22 Nov 2024 05:42:30 GMT, Ioi Lam <iklam at openjdk.org> wrote:

> Since [JDK-8335583](https://bugs.openjdk.org/browse/JDK-8335583), we encode 64-bit pointers used by `RunTimeLambdaProxyClassKey` into 32-bit offsets. However, we didn't handle the cases where some of the pointers could be null.
> 
> In this PR, I have added an `or_null` variant of the functions that deal with pointer-to-offset encoding. The `or_null` variant allows an `nullptr` to be encoded with the 32-bit value of `0`.
> 
> I also renamed some of the functions to improve readability.

This pull request has now been integrated.

Changeset: f6d29909
Author:    Ioi Lam <iklam at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/f6d29909bb5cce0a73945c9fccc9c3fa7d4804fd
Stats:     163 lines in 8 files changed: 144 ins; 4 del; 15 mod

8344824: CDS dump crashes when member_method of a lambda proxy is null

Reviewed-by: ccheung, matsaave

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PR: https://git.openjdk.org/jdk/pull/22313