Multiverse 5: bukkit bridge throws NoClassDefFoundError, world alias empty (PR attached)

[minoneer]

Versions: BungeeTabListPlus 3.6.7 (bukkit bridge), Paper 26.2, Multiverse-Core 5.8.0

On a server running Multiverse-Core 5.x, the bukkit bridge throws on every data update - roughly every 2.5 seconds, a few hundred stack traces an hour:

[ERROR]: [BungeeTabListPlus] Unexpected exception
java.lang.NoClassDefFoundError: com/onarandombox/MultiverseCore/api/MVPlugin
    at de.codecrafter47.data.bukkit.multiverse.MultiverseWorldAliasProvider.apply(MultiverseWorldAliasProvider.java:30)
    at de.codecrafter47.data.api.AbstractDataAccess.get(AbstractDataAccess.java:44)
    at de.codecrafter47.bungeetablistplus.bridge.AbstractBridge.updatePlayerData(AbstractBridge.java:374)
    at codecrafter47.bungeetablistplus.bukkitbridge.BukkitBridge.lambda$onEnable$3(BukkitBridge.java:133)
Caused by: java.lang.ClassNotFoundException: com.onarandombox.MultiverseCore.api.MVPlugin

${viewer multiverse_world_alias} renders empty as a result.

Cause: Multiverse 5 renamed its packages from com.onarandombox.MultiverseCore to org.mvplugins.multiverse.core.

Fix: the provider lives in minecraft-data-api, so I've opened CodeCrafter47/minecraft-data-api#12 there. It adds a bukkit:multiverse5 module following the existing factionsuuid/factionsuuid05 pattern. Multiverse 4 support is untouched.

Filing it here as well because this is where the symptom shows up, and because BungeeTabListPlus needs a dataApiVersion bump to actually ship the fix once that PR lands.

[Andre601]

For a temporary workaround can you install the legacy api plugin of Multiverse, which adds compat for the old API to MV 5.