PackAnalytics mod leaves stale thread on server shutdown

[filliravaz]

Describe the bug

This mod leaves a stale thread from shutdown, causing the server to hang permanently.
This was observed in the modpack Prominence 2 RPG, and removing this mod caused the issue to disappear.

Log Files

Thread dump from the stale thread: https://mclo.gs/w7B2iGs
Image from JFR analysis (JDK Mission Control app), stacktrace for the thread start event

The server with the mod will hang with these as the last lines:

[13:58:38] [Server thread/INFO]: Stopping IO worker...
[13:58:38] [Server thread/INFO]: Stopped IO worker!

Mod Version, Modloader, and Minecraft Version

• Which version of the mod are you using?
  1.0.3

• Fabric, Forge, NeoForge?
  Fabric 0.16.10

• Which Minecraft version?
  1.20.1

[pietro-lopes]

Can confirm this is happening on BMC5