Integrated: 8347840: Fix testlibrary compilation warnings

[Leonid Mesnik]

On Wed, 15 Jan 2025 23:48:33 GMT, Leonid Mesnik <lmesnik at openjdk.org> wrote:

> There few compiler warning disabled in the testlibary build.
> They should be fixed or localized and removed from build to prevent new possible issues.
> 
> The main goal is to avoid new such issues in the testlibrary. 
> Tested with tier1-5 to ensure that all tests were passed.

This pull request has now been integrated.

Changeset: 2ca1b4d4
Author:    Leonid Mesnik <lmesnik at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/2ca1b4d48da7eb9b5baf0ac213f3ce87f47dd316
Stats:     120 lines in 30 files changed: 25 ins; 42 del; 53 mod

8347840: Fix testlibrary compilation warnings

Reviewed-by: dholmes

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PR: https://git.openjdk.org/jdk/pull/23143