RFR: 8374354: Update copyright year to 2025 for jdk.javadoc in files where it was missed

[Chen Liang]

On Thu, 25 Dec 2025 07:10:00 GMT, Sergey Bylokhov <serb at openjdk.org> wrote:

> The copyright year in "jdk.javadoc" files updated in 2025 has been bumped to 2025.
> 
> The next command can be run (on top of this PR) to verify that each file had prior commits in 2025:
> 
> `git diff HEAD~1 --name-only | while read f; do git log HEAD~1 --since="2025-01-01" --oneline -- "$f" | head -1 | grep -q . || echo "NOT IN 2025: $f"; done`

https://github.com/openjdk/jdk/tree/master/test/langtools/jdk/javadoc is also considered javadoc maintenance area. You can check that directory too.

I recommend moving all these update copyright for 2025 JBS issues to be subtasks of a main issue. These tickets are currently scattered around and hard to track.

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PR Comment: https://git.openjdk.org/jdk/pull/28990#issuecomment-3691618563