Non-whitelisted players joining a whitelisted server throws a debug warning

[femboyfin]

Describe the bug
A debug warning gets thrown when a player who is not whitelisted tries to join a whitelisted server.

To Reproduce
Steps to reproduce the behavior:

1. Turn on ProtocolLib's debug logging
2. Start up a server with ProtocolLib
3. Turn on the vanilla whitelist without adding yourself
4. Attempt to join the server
5. Check console

Expected behavior
No warning in console.

Screenshots
N/A

Version Info
https://pastebin.com/uTNWtg99

Additional context
A full server log is available here. I'm aware this isn't a breaking bug although it may indicative of an underlying issue that could cause problems elsewhere.

[dmulloy2]

Good catch! Forgot to change that in the 1.17 update