RFR: 8286663: Resolve IDE warnings in WTrayIconPeer and SystemTray

[Alexey Ivanov]

On Mon, 23 May 2022 20:23:08 GMT, Phil Race <prr at openjdk.org> wrote:

>> It is not intuitive but the "zero version" is actually faster:
>
> ok ... why ?

It's explained in Aleksey Shipilёv's article
https://shipilev.net/blog/2016/arrays-wisdom-ancients/#_conclusion

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PR: https://git.openjdk.java.net/jdk/pull/8850