[26.3]PlayerArmSwingEvent incorrectly triggers deprecated warning for PlayerAnimationEvent

Expected behavior

Registering a PlayerArmSwingEvent should not trigger a warning about PlayerAnimationEvent due to its deprecated parent class.

Observed/Actual behavior

I created a minimal test plugin containing only this event handler, and it still triggers the deprecated event warning.

@EventHandler
public void onArmSwing(PlayerArmSwingEvent event) {
    getLogger().info(
        "PlayerArmSwingEvent successfully triggered by "
        + event.getPlayer().getName()
    );
}

[15:32:21 WARN]: [PaperEventTest] "PaperEventTest v1.0.0" has registered a listener for org.bukkit.event.player.PlayerAnimationEvent on method "public void test.EventTestPlugin.onArmSwing(io.papermc.paper.event.player.PlayerArmSwingEvent)", but the event is Deprecated. "Server performance will be affected"; please notify the authors [].

Steps/models to reproduce

1.Create a plugin containing the method above, or use any plugin that listens for the PlayerArmSwingEvent.
2.The deprecated event warning appears.

Plugin and Datapack List

> datapack list
[15:48:12 INFO]: System chat: There are 2 data pack(s) enabled: [vanilla (built-in)], [paper (built-in)]
[15:48:12 INFO]: System chat: There are no more data packs available
> plugins
[15:48:24 INFO]: ℹ Server Plugins (1):
[15:48:24 INFO]: Bukkit Plugins:
[15:48:24 INFO]:  - PaperEventTest

Paper version

> version
[15:48:43 INFO]: Checking version, please wait...
[15:48:43 INFO]: This server is running Paper version 26.3-19-dev/26.3@b4c7d16 (2026-09-18T20:29:40Z) (Implementing API version 26.3.build.19-alpha)
You are running the latest version
Previous version: 26.3-rc-3-1-2307f8f (MC: 26.3 Release Candidate 3)

Other

No response

Start with the minimal plugin and the onArmSwing(PlayerArmSwingEvent event) handler shown in the issue, then reproduce the deprecated-event warning during listener registration. Trace the event registration and deprecation-warning entry point involved in PlayerArmSwingEvent and its parent PlayerAnimationEvent. Done means registering only PlayerArmSwingEvent no longer emits the PlayerAnimationEvent deprecation warning.