Admincraft•2w ago

Shaded packetevents and ViaVersion weird error

Has anyone encountered this error before? It happens with latest dev builds for ViaVersion, ViaBackwards and latest packetevents release Server is pufferfish 1.21.3 and probably any client, I tested with 1.21.3 and 1.8.9 The error triggers by simply pinging the server. Interesting fact: This only happens if the plugin is a paper plugin (using a paper-plugin.yml), the exact same jar with a plugin.yml doesn't trigger the error, no need to re-compile.

[18:51:32 WARN]: [net.serlith.lib.com.github.retrooper.packetevents.PacketEventsAPI] PacketEvents caught an unhandled exception while calling your listener.
java.lang.NullPointerException: Cannot invoke "net.serlith.lib.io.github.retrooper.packetevents.util.viaversion.ViaVersionAccessor.getProtocolVersion(net.serlith.lib.com.github.retrooper.packetevents.protocol.player.User)" because the return value of "net.serlith.lib.io.github.retrooper.packetevents.util.viaversion.ViaVersionUtil.getViaVersionAccessor()" is null

[18:51:32 WARN]: [net.serlith.lib.com.github.retrooper.packetevents.PacketEventsAPI] PacketEvents caught an unhandled exception while calling your listener.
java.lang.NullPointerException: Cannot invoke "net.serlith.lib.io.github.retrooper.packetevents.util.viaversion.ViaVersionAccessor.getProtocolVersion(net.serlith.lib.com.github.retrooper.packetevents.protocol.player.User)" because the return value of "net.serlith.lib.io.github.retrooper.packetevents.util.viaversion.ViaVersionUtil.getViaVersionAccessor()" is null

https://paste.helpch.at/ubobahumaz.php

Solution:

Probably related to how paper loads plugins or something like that, just adding ViaVersion as a soft dependency to load before the plugin (in paper-plugin.yml) fixes it

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4 Replies

Cubicake•2w ago

I mean dev builds are dev builds for a reason

𝐁𝐢𝐪𝐮𝐚𝐭𝐞𝐫𝐧𝐢𝐨𝐧𝐬OP•2w ago

Forgot to update on this (I also asked on packetevents discord)

Solution

𝐁𝐢𝐪𝐮𝐚𝐭𝐞𝐫𝐧𝐢𝐨𝐧𝐬•2w ago

Probably related to how paper loads plugins or something like that, just adding ViaVersion as a soft dependency to load before the plugin (in paper-plugin.yml) fixes it

𝐁𝐢𝐪𝐮𝐚𝐭𝐞𝐫𝐧𝐢𝐨𝐧𝐬OP•2w ago

As for why it doesn’t happen when using a regular plugin.yml :msnwhoa: :papermc:

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Shaded packetevents and ViaVersion weird error

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