Packet Interceptor error when disabling

[Xesau]

[21:15:12 WARN]: A task raised an exception. Task: com.bringholm.packetinterceptor.v1_0.PacketInterceptor$$Lambda$59/1466271928@4aef933e
java.util.NoSuchElementException: packet_interceptor_Kingdoms_0
        at io.netty.channel.DefaultChannelPipeline.getContextOrDie(DefaultChannelPipeline.java:1119) ~[spigot-1.12.2.jar:git-Spigot-2086bb0-8cc5a7e]

When reloading, I believe the previous exception causes another exception:

java.lang.ExceptionInInitializerError: null
        at eu.xesau.kd.Main.onEnable(Main.java:60) ~[?:?]
Caused by: java.util.NoSuchElementException: packet_handler
        at io.netty.channel.DefaultChannelPipeline.getContextOrDie(DefaultChannelPipeline.java:1119) ~[spigot-1.12.2.jar:git-Spigot-2086bb0-8cc5a7e]

[Alvin-LB]

Do these exceptions get thrown on the same instance as the ones you describe in #3? If that is the case, these are probably just a consequence of that previous exception.

[Xesau]

No. This error occurred after I patched the ConcurrentModificationException.

[Alvin-LB]

I don't mean any ConcurrentModificationExceptions, I meant the ClassCastException described in #3.
If that is not the case, please post the full server log of when this occured.

[Xesau]

Whoops 😬

Its on the same server, but not sure if they occur at the same time

[Alvin-LB]

I have managed to replicate this issue and I am working on a solution. Annoyingly it is very involved with netty internals so I have yet to come up with a solution.

I believe #3 to also be caused by this issue.