With bukkit.yml settings.deprecated-verbose: true, there's a warning in the console about a deprecated event listener saying ""Server performance will be affected".
```
[13:15:29] [Server thread/WARN]: [Pl3xMap] "Pl3xMap v1.0.0-BETA-SNAPSHOT" has registered a listener for com.destroystokyo.paper.event.brigadier.CommandRegisteredEvent on method "public void net.pl3x.map.plugin.lib.cloud.commandframework.paper.PaperBrigadierListener.onCommandRegister(com.destroystokyo.paper.event.brigadier.CommandRegisteredEvent)", but the event is Deprecated. "Server performance will be affected"; please notify the authors [BillyGalbreath, jmp, NeumimTo].
org.bukkit.plugin.AuthorNagException: null
at org.bukkit.plugin.java.JavaPluginLoader.createRegisteredListeners(JavaPluginLoader.java:331) ~[purpur-api-1.18.1-R0.1-SNAPSHOT.jar:?]
at org.bukkit.plugin.SimplePluginManager.registerEvents(SimplePluginManager.java:660) ~[purpur-api-1.18.1-R0.1-SNAPSHOT.jar:?]
at net.pl3x.map.plugin.lib.cloud.commandframework.paper.PaperCommandManager.registerBrigadier(PaperCommandManager.java:129) ~[pl3xmap-1.18-2.jar:?]
at net.pl3x.map.plugin.command.CommandManager.(CommandManager.java:49) ~[pl3xmap-1.18-2.jar:?]
at net.pl3x.map.plugin.Pl3xMapPlugin.onEnable(Pl3xMapPlugin.java:68) ~[pl3xmap-1.18-2.jar:?]
at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:264) ~[purpur-api-1.18.1-R0.1-SNAPSHOT.jar:?]
at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[purpur-api-1.18.1-R0.1-SNAPSHOT.jar:?]
at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:500) ~[purpur-api-1.18.1-R0.1-SNAPSHOT.jar:?]
at org.bukkit.craftbukkit.v1_18_R1.CraftServer.enablePlugin(CraftServer.java:564) ~[purpur-1.18.1.jar:git-Purpur-1465]
at org.bukkit.craftbukkit.v1_18_R1.CraftServer.enablePlugins(CraftServer.java:478) ~[purpur-1.18.1.jar:git-Purpur-1465]
at net.minecraft.server.MinecraftServer.loadWorld0(MinecraftServer.java:730) ~[purpur-1.18.1.jar:git-Purpur-1465]
at net.minecraft.server.MinecraftServer.loadLevel(MinecraftServer.java:506) ~[purpur-1.18.1.jar:git-Purpur-1465]
at net.minecraft.server.dedicated.DedicatedServer.initServer(DedicatedServer.java:347) ~[purpur-1.18.1.jar:git-Purpur-1465]
at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1215) ~[purpur-1.18.1.jar:git-Purpur-1465]
at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:320) ~[purpur-1.18.1.jar:git-Purpur-1465]
at java.lang.Thread.run(Thread.java:833) ~[?:?]
```
With bukkit.yml settings.deprecated-verbose: true, there's a warning in the console about a deprecated event listener saying ""Server performance will be affected".