RFR: JDK-8326836 Incorrect @since Tags for ClassSignature methods [v2]

[Nizar Benalla]

> # Issue
> - [JDK-8326836](https://bugs.openjdk.org/browse/JDK-8326836): changes were made to the method signatures but this modification isn't reflected in the @ since tags. The @ since tags need to be updated.
> 
> I changed the @\since tags to better accurately show when the methods were introduced.

Nizar Benalla has updated the pull request incrementally with one additional commit since the last revision:

  update the copyright year to 2024

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/18030/files
  - new: https://git.openjdk.org/jdk/pull/18030/files/0d857db4..8c0c7122

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=18030&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=18030&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/18030.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/18030/head:pull/18030

PR: https://git.openjdk.org/jdk/pull/18030