RFR: 8332103: Add missing `@since` tags to `java.desktop`

[Alexey Ivanov]

On Tue, 14 May 2024 23:45:23 GMT, Nizar Benalla <nbenalla at openjdk.org> wrote:

> but for older code you can only guess "Element: X existed before JDK 10". So I was left to check on my own, and made a mistake.

Why is it? There's history beyond 10 and 9, yet accessing it requires more effort. In addition to that, old JDK releases are available in an archive so that you can verify if a method existed in a certain release.

If all the methods need `@since` marker, it has to be accurate and represent the real picture rather than an estimate.

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PR Comment: https://git.openjdk.org/jdk/pull/19192#issuecomment-2137200506