RFR: 8317335: Build on windows fails after 8316645

[Leonid Mesnik]

On Sun, 1 Oct 2023 19:45:49 GMT, Kim Barrett <kbarrett at openjdk.org> wrote:

> Please review this trivial change that fixes a build failure with Visual
> Studio in Oracle's CI. The failure is a constant truncation warning because
> the constant initial value of a `char` member is 0xaa, which is out of range
> for a signed 8bit char. This change uses 0x7a as the initial value, which is
> in the required range.
> 
> Note that the problem code successfully builds in GitHub Actions.  I don't
> know why we're seeing this problem in Oracle's CI but not GA; perhaps a
> difference in compiler versions?
> 
> Testing:
> mach5 tier1

Marked as reviewed by lmesnik (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/16000#pullrequestreview-1651954318