RFR: 8329884: Serial: Fix build failure due to ‘Copy’ has not been declared

[Albert Mingkun Yang]

On Tue, 9 Apr 2024 01:36:42 GMT, Jie Fu <jiefu at openjdk.org> wrote:

> Please review the trivial change which fixes the build failure of serial gc (e.g., build the minimal-release).
> Thanks.

Marked as reviewed by ayang (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/18682#pullrequestreview-1988193978