NPE in Packet Listener

Question

NPE in Packet Listener

frkntmbs opened this issue 5 years ago · 24 comments

frkntmbs commented 5 years ago

I get this error in version 1.12.2 and a similar error is also present in the papper version

[00:12:47] [Netty Server IO #3/WARN]: [OldCombatMechanics] Error in a packet listener (send).
java.lang.NullPointerException: null
	at java.util.HashSet.<init>(Unknown Source) ~[?:1.8.0_201]
	at gvlfm78.plugin.OldCombatMechanics.utilities.teams.TeamPacket.adjustToPlayerRemoved(TeamPacket.java:94) ~[?:?]
	at gvlfm78.plugin.OldCombatMechanics.utilities.teams.TeamPacket.adjustToUpdate(TeamPacket.java:44) ~[?:?]
	at gvlfm78.plugin.OldCombatMechanics.module.ModulePlayerCollisions$CollisionPacketListener.updateToPacket(ModulePlayerCollisions.java:157) ~[?:?]
	at gvlfm78.plugin.OldCombatMechanics.module.ModulePlayerCollisions$CollisionPacketListener.onPacketSend(ModulePlayerCollisions.java:119) ~[?:?]
	at gvlfm78.plugin.OldCombatMechanics.utilities.packet.PacketInjector.write(PacketInjector.java:162) ~[?:?]
	at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:738) ~[spigot.jar:git-Spigot-dcd1643-e60fc34]
	at io.netty.channel.AbstractChannelHandlerContext.invokeWriteAndFlush(AbstractChannelHandlerContext.java:801) ~[spigot.jar:git-Spigot-dcd1643-e60fc34]
	at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:814) ~[spigot.jar:git-Spigot-dcd1643-e60fc34]
	at io.netty.channel.AbstractChannelHandlerContext.writeAndFlush(AbstractChannelHandlerContext.java:794) ~[spigot.jar:git-Spigot-dcd1643-e60fc34]
	at io.netty.channel.AbstractChannelHandlerContext.writeAndFlush(AbstractChannelHandlerContext.java:831) ~[spigot.jar:git-Spigot-dcd1643-e60fc34]
	at io.netty.channel.DefaultChannelPipeline.writeAndFlush(DefaultChannelPipeline.java:1071) ~[spigot.jar:git-Spigot-dcd1643-e60fc34]
	at io.netty.channel.AbstractChannel.writeAndFlush(AbstractChannel.java:300) ~[spigot.jar:git-Spigot-dcd1643-e60fc34]
	at com.comphenix.protocol.injector.netty.ChannelProxy.writeAndFlush(ChannelProxy.java:327) ~[?:?]
	at net.minecraft.server.v1_12_R1.NetworkManager$4.run(NetworkManager.java:200) ~[spigot.jar:git-Spigot-dcd1643-e60fc34]
	at com.comphenix.protocol.injector.netty.ChannelInjector$3.lambda$onMessageScheduled$1(ChannelInjector.java:310) ~[?:?]
	at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:163) [spigot.jar:git-Spigot-dcd1643-e60fc34]
	at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:404) [spigot.jar:git-Spigot-dcd1643-e60fc34]
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:463) [spigot.jar:git-Spigot-dcd1643-e60fc34]
	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:884) [spigot.jar:git-Spigot-dcd1643-e60fc34]
	at java.lang.Thread.run(Unknown Source) [?:1.8.0_201]

kernitus · Answer 1 · 2019-09-03T11:26:08.000Z

@Boz-Turk what exact version of OldCombatMechanics are you running?

frkntmbs · Answer 2 · 2019-09-03T17:55:11.000Z

@gvlfm78 OCMVersion : 1.7.4

frkntmbs · Answer 3 · 2019-09-04T21:21:58.000Z

@gvlfm78 Presumably, when will it recover?

frkntmbs · Answer 4 · 2019-10-03T21:39:53.000Z

Some of it is like this: https://pastebin.com/Pcd5KSCh

latets log:
latest.log

rayzr522 · Answer 5 · 2019-10-03T22:04:03.000Z

Try this dev build: https://ci.rayzr.dev/job/OldCombatMechanics/75/

frkntmbs · Answer 6 · 2019-10-03T20:23:41.000Z

still no solution provided

rayzr522 · Answer 7 · 2019-10-03T20:33:44.000Z

Sorry for the late reply. What version/fork of Spigot server are you running?

frkntmbs · Answer 8 · 2019-10-03T20:34:55.000Z

Spigot / PaperSpigot 1.12.2 fails in both versions

rayzr522 · Answer 9 · 2019-10-03T20:35:52.000Z

Thank you. When is this error thrown? Is it when players leave, join, or is it some other action?

frkntmbs · Answer 10 · 2019-10-03T20:38:19.000Z

I'm not sure, it doesn't always happen. I think it happens when they enter a combat.

I-Al-Istannen · Answer 11 · 2019-10-03T20:43:07.000Z

Do you have any other plugins? Which build of spigot are you running?

rayzr522 · Answer 12 · 2019-10-03T20:43:45.000Z

(You can see the Spigot build via /version or in the latest.log file towards the start)

frkntmbs · Answer 13 · 2019-10-03T20:45:55.000Z

[23:44:17 INFO]: This server is running Paper version git-Paper-1618 (MC: 1.12.2
) (Implementing API version 1.12.2-R0.1-SNAPSHOT)

I didn't see this error before installing this plugin

rayzr522 · Answer 14 · 2019-10-03T20:46:30.000Z

Thanks, could we have a list of the other plugins you use as well?

frkntmbs · Answer 15 · 2019-10-03T20:48:53.000Z

ActionBarAPI, AncientGates, antiRedstoneClock, AntiWDL, ArmorStandEditor, AsyncWorldEdit, AsyncWorldEditInjector, AutoMessage, Banknotes, BKCommonLib, boosCooldowns, ChestCommands, ChestShop, ClearLag, CounterStrike, CustomPayloadFixer, DisableJoinMessage, EasyBackup, Essentials
, EssentialsChat, EssentialsSpawn, ExtrasSK, FactionChat, Factions, FastCraft, HealthBar, HolographicDisplays, IllegalStack, LaunchPadPlus, LeakParkour, LibsDisguises, LightCleaner, LockettePro, MassiveCore, MineResetLite, Minigames, Minigames-Regions, Multiverse-Core, MyCommand, MythicMobs, NMExtensions, NMFutbol, NMObligations, NMPlotPremium, NMProfessions, NoCheatPlus, OldCombatMechanics, OnlyProxyJoin, PermissionsEx, PlaceholderAPI, PlotSquared, PlugMan, ProtocolLib, PvPManager, QuickShop, SafeTrade, SharpSK, SkAction, skDragon, Skellett, SkinsRestorer, SkQuery, skRayFall, Skript, SkUniversal, skUtilities, TAB, UnioAntiCrash, UUIDSpoof-Fix, Vault, Websend, WildSkript, WorldBorder, WorldEdit, WorldGuard

I-Al-Istannen · Answer 16 · 2019-10-03T21:04:33.000Z

Can you try this build? Unzip and copy the jar file. It will output stuff to the console that I need.
OCM.zip

frkntmbs · Answer 17 · 2019-10-03T21:08:41.000Z

I installed and it turned out

resimag.com/p1/b105ebf4f49.png

I-Al-Istannen · Answer 18 · 2019-10-03T21:08:32.000Z

Or maybe even this which also logs packet listeners:
OCM.zip

I-Al-Istannen · Answer 19 · 2019-10-03T21:09:54.000Z

The important part is when an error happens. It should write NULL DETECTED in the console and then there will probably be the stacktrace. I need the stuff right below that null detected and the registered channel listeners it outputs with the second jar I posted on startup.

frkntmbs · Answer 20 · 2019-10-03T21:15:28.000Z

These errors occurred:
https://cdn.discordapp.com/attachments/621356216865783808/629426128448389143/unknown.png
https://cdn.discordapp.com/attachments/621356216865783808/629426171636875264/unknown.png

I-Al-Istannen · Answer 21 · 2019-10-03T21:17:07.000Z

Can you show the few lines above the second screenshot as well? You can most likely copy-paste it from latest.log.

frkntmbs · Answer 22 · 2019-10-03T21:18:41.000Z

[00:17:35] [Netty Server IO #2/INFO]: a=>0004zhywor�
[00:17:35] [Netty Server IO #2/INFO]: b=>0004zhywor�
[00:17:35] [Netty Server IO #2/INFO]: c=>[A] 
[00:17:35] [Netty Server IO #2/INFO]: d=>
[00:17:35] [Netty Server IO #2/INFO]: e=>never
[00:17:35] [Netty Server IO #2/INFO]: f=>never
[00:17:35] [Netty Server IO #2/INFO]: g=>-1
[00:17:35] [Netty Server IO #2/INFO]: h=>null
[00:17:35] [Netty Server IO #2/INFO]: i=>2
[00:17:35] [Netty Server IO #2/INFO]: j=>69
[00:17:35] [Netty Server IO #2/WARN]: [OldCombatMechanics] Error in a packet listener (send).
java.lang.NullPointerException: null
	at java.util.HashSet.<init>(Unknown Source) ~[?:1.8.0_201]
	at kernitus.plugin.OldCombatMechanics.utilities.teams.TeamPacket.adjustToPlayerAdded(TeamPacket.java:86) ~[?:?]
	at kernitus.plugin.OldCombatMechanics.utilities.teams.TeamPacket.adjustToUpdate(TeamPacket.java:41) ~[?:?]
	at kernitus.plugin.OldCombatMechanics.module.ModulePlayerCollisions$CollisionPacketListener.updateToPacket(ModulePlayerCollisions.java:157) ~[?:?]
	at kernitus.plugin.OldCombatMechanics.module.ModulePlayerCollisions$CollisionPacketListener.onPacketSend(ModulePlayerCollisions.java:119) ~[?:?]
	at kernitus.plugin.OldCombatMechanics.utilities.packet.PacketInjector.write(PacketInjector.java:170) ~[?:?]
	at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:738) ~[spigot.jar:git-Paper-1618]
	at io.netty.channel.AbstractChannelHandlerContext.invokeWriteAndFlush(AbstractChannelHandlerContext.java:801) ~[spigot.jar:git-Paper-1618]
	at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:814) ~[spigot.jar:git-Paper-1618]
	at io.netty.channel.AbstractChannelHandlerContext.writeAndFlush(AbstractChannelHandlerContext.java:794) ~[spigot.jar:git-Paper-1618]
	at io.netty.channel.AbstractChannelHandlerContext.writeAndFlush(AbstractChannelHandlerContext.java:831) ~[spigot.jar:git-Paper-1618]
	at io.netty.channel.DefaultChannelPipeline.writeAndFlush(DefaultChannelPipeline.java:1071) ~[spigot.jar:git-Paper-1618]
	at io.netty.channel.AbstractChannel.writeAndFlush(AbstractChannel.java:300) ~[spigot.jar:git-Paper-1618]
	at com.comphenix.protocol.injector.netty.ChannelProxy.writeAndFlush(ChannelProxy.java:327) ~[?:?]
	at net.minecraft.server.v1_12_R1.NetworkManager$4.run(NetworkManager.java:215) ~[spigot.jar:git-Paper-1618]
	at com.comphenix.protocol.injector.netty.ChannelInjector$3.lambda$onMessageScheduled$1(ChannelInjector.java:310) ~[?:?]
	at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:163) ~[spigot.jar:git-Paper-1618]
	at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:404) ~[spigot.jar:git-Paper-1618]
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:463) ~[spigot.jar:git-Paper-1618]
	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:884) ~[spigot.jar:git-Paper-1618]
	at java.lang.Thread.run(Unknown Source) [?:1.8.0_201]
[00:17:39]

rayzr522 · Answer 23 · 2019-10-03T21:26:46.000Z

Please post your full latest.log, either uploading it here as an attachment or on https://pastebin.com

frkntmbs · Answer 24 · 2019-10-04T20:43:06.000Z

I've been using it for a few hours and I haven't had any problems.

I think it's solved

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