RFR: JDK-8318119: Invalid narrow Klass base on aarch64 post 8312018

[Thomas Stuefe]

On Fri, 3 Nov 2023 16:26:22 GMT, Andrew Haley <aph at openjdk.org> wrote:

>> Sorry, I don't understand this question.
>
> Argh, typo. Does this mean that the class metadata might be more than 4G in size? Is that the risk?

Currently not. Class space is limited to 3Gb, CDS to 1Gb, they are placed adjacent to each other to not surpass 4G.

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PR Review Comment: https://git.openjdk.org/jdk/pull/16215#discussion_r1382852105