ClassCastException: CraftChunk cannot be cast to Comparable

[ItsHarry]

Not sure how nobody else has reported this before. You can't add an object to a TreeSet if it does not implement Comparable.

[15:18:24] [Server thread/ERROR]: Could not pass event LandClaimEvent to FactionsFramework v1.2.0
org.bukkit.event.EventException
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:302) ~[PaperSpigot.jar:git-PaperSpigot-"8b18730"]
	at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:78) ~[PaperSpigot.jar:git-PaperSpigot-"8b18730"]
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[PaperSpigot.jar:git-PaperSpigot-"8b18730"]
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:501) [PaperSpigot.jar:git-PaperSpigot-"8b18730"]
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:486) [PaperSpigot.jar:git-PaperSpigot-"8b18730"]
	at com.massivecraft.factions.zcore.persist.MemoryFPlayer.attemptClaim(MemoryFPlayer.java:801) [FactionsUUID.jar:?]
	at com.massivecraft.factions.cmd.CmdAutoClaim.perform(CmdAutoClaim.java:48) [FactionsUUID.jar:?]
	at com.massivecraft.factions.zcore.MCommand.execute(MCommand.java:130) [FactionsUUID.jar:?]
	at com.massivecraft.factions.cmd.FCommand.execute(FCommand.java:53) [FactionsUUID.jar:?]
	at com.massivecraft.factions.zcore.MCommand.execute(MCommand.java:116) [FactionsUUID.jar:?]
	at com.massivecraft.factions.cmd.FCommand.execute(FCommand.java:53) [FactionsUUID.jar:?]
	at com.massivecraft.factions.zcore.MCommand.execute(MCommand.java:134) [FactionsUUID.jar:?]
	at com.massivecraft.factions.zcore.MPlugin.handleCommand(MPlugin.java:299) [FactionsUUID.jar:?]
	at com.massivecraft.factions.zcore.MPlugin.handleCommand(MPlugin.java:262) [FactionsUUID.jar:?]
	at com.massivecraft.factions.P.handleCommand(P.java:189) [FactionsUUID.jar:?]
	at com.massivecraft.factions.P.onCommand(P.java:200) [FactionsUUID.jar:?]
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:45) [PaperSpigot.jar:git-PaperSpigot-"8b18730"]
	at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:143) [PaperSpigot.jar:git-PaperSpigot-"8b18730"]
	at org.bukkit.craftbukkit.v1_8_R3.CraftServer.dispatchCommand(CraftServer.java:666) [PaperSpigot.jar:git-PaperSpigot-"8b18730"]
	at net.minecraft.server.v1_8_R3.PlayerConnection.handleCommand(PlayerConnection.java:1189) [PaperSpigot.jar:git-PaperSpigot-"8b18730"]
	at net.minecraft.server.v1_8_R3.PlayerConnection.a(PlayerConnection.java:1001) [PaperSpigot.jar:git-PaperSpigot-"8b18730"]
	at net.minecraft.server.v1_8_R3.PacketPlayInChat.a(PacketPlayInChat.java:45) [PaperSpigot.jar:git-PaperSpigot-"8b18730"]
	at net.minecraft.server.v1_8_R3.PacketPlayInChat.a(PacketPlayInChat.java:1) [PaperSpigot.jar:git-PaperSpigot-"8b18730"]
	at net.minecraft.server.v1_8_R3.PlayerConnectionUtils$1.run(SourceFile:13) [PaperSpigot.jar:git-PaperSpigot-"8b18730"]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_45]
	at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_45]
	at net.minecraft.server.v1_8_R3.SystemUtils.a(SourceFile:44) [PaperSpigot.jar:git-PaperSpigot-"8b18730"]
	at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:774) [PaperSpigot.jar:git-PaperSpigot-"8b18730"]
	at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:378) [PaperSpigot.jar:git-PaperSpigot-"8b18730"]
	at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:713) [PaperSpigot.jar:git-PaperSpigot-"8b18730"]
	at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:616) [PaperSpigot.jar:git-PaperSpigot-"8b18730"]
	at java.lang.Thread.run(Thread.java:745) [?:1.8.0_45]
Caused by: java.lang.ClassCastException: org.bukkit.craftbukkit.v1_8_R3.CraftChunk cannot be cast to java.lang.Comparable
	at java.util.TreeMap.compare(TreeMap.java:1290) ~[?:1.8.0_45]
	at java.util.TreeMap.put(TreeMap.java:538) ~[?:1.8.0_45]
	at java.util.TreeSet.add(TreeSet.java:255) ~[?:1.8.0_45]
	at me.markeh.factionsframework.layer.layer_1_6.Events_1_6.onEventFactionsChunksChange(Events_1_6.java:90) ~[?:?]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_45]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_45]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_45]
	at java.lang.reflect.Method.invoke(Method.java:497) ~[?:1.8.0_45]
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:300) ~[PaperSpigot.jar:git-PaperSpigot-"8b18730"]
	... 31 more

[markhughes]

Looks like the issue is here: https://github.com/MarkehMe/FactionsFramework/blob/master/layers/Layer_1_6/src/main/java/me/markeh/factionsframework/layer/layer_1_6/Events_1_6.java#L90

I will have to change the type, thanks for reporting! 😄

[ItsHarry]

There are more occurrences, also with other types like FPlayer and Faction which don't seem to implement Comparable, not sure how the plugin even works unless I'm missing something

[markhughes]

I've only found it being miss-used with chunk. I believe natural ordering is used as a fallback? Not sure.

It may be helpful if I implement Comparable onto all the frameworks entities. But I'm currently in the process of making FactionsFramework2 (complete rewrite)

[markhughes]

Trying to work out why I did this with Chunk. 😨

[prosavage]

I fixed it