Plugin is not properly shutting down its async tasks when it is being shut down

[RealTriassic]

Every time my server reboots, this error gets printed in console right before it completes the shut down sequence.

[14:48:01 ERROR]: Nag author: 'NEZNAMY' of 'TAB-Bridge' about the following: This plugin is not properly shutting down its async tasks when it is being shut down. This task may throw errors during the final shutdown logs and might not complete before process dies.
[14:48:01 ERROR]: Craft Scheduler Thread - 1279 - TAB-Bridge Stacktrace
[14:48:01 ERROR]:   java.base@17.0.6/jdk.internal.misc.Unsafe.park(Native Method)
[14:48:01 ERROR]:   java.base@17.0.6/java.util.concurrent.locks.LockSupport.park(LockSupport.java:211)
[14:48:01 ERROR]:   java.base@17.0.6/java.util.concurrent.CompletableFuture$Signaller.block(CompletableFuture.java:1864)
[14:48:01 ERROR]:   java.base@17.0.6/java.util.concurrent.ForkJoinPool.unmanagedBlock(ForkJoinPool.java:3463)
[14:48:01 ERROR]:   java.base@17.0.6/java.util.concurrent.ForkJoinPool.managedBlock(ForkJoinPool.java:3434)
[14:48:01 ERROR]:   java.base@17.0.6/java.util.concurrent.CompletableFuture.waitingGet(CompletableFuture.java:1898)
[14:48:01 ERROR]:   java.base@17.0.6/java.util.concurrent.CompletableFuture.join(CompletableFuture.java:2117)
[14:48:01 ERROR]:   net.minecraft.server.level.ChunkProviderServer.a(ChunkProviderServer.java:426)
[14:48:01 ERROR]:   net.minecraft.world.level.World.a(World.java:651)
[14:48:01 ERROR]:   net.minecraft.world.level.IWorldReader.getNoiseBiome(IWorldReader.java:62)
[14:48:01 ERROR]:   org.bukkit.craftbukkit.v1_19_R2.CraftRegionAccessor.getBiome(CraftRegionAccessor.java:214)
[14:48:01 ERROR]:   org.bukkit.craftbukkit.v1_19_R2.block.CraftBlock.getBiome(CraftBlock.java:343)
[14:48:01 ERROR]:   com.extendedclip.papi.expansion.player.PlayerUtil.getBiome(PlayerUtil.java:228)
[14:48:01 ERROR]:   com.extendedclip.papi.expansion.player.PlayerUtil.getCapitalizedBiome(PlayerUtil.java:232)
[14:48:01 ERROR]:   com.extendedclip.papi.expansion.player.PlayerExpansion.onRequest(PlayerExpansion.java:299)
[14:48:01 ERROR]:   PlaceholderAPI-2.11.2.jar//me.clip.placeholderapi.replacer.CharsReplacer.apply(CharsReplacer.java:119)
[14:48:01 ERROR]:   PlaceholderAPI-2.11.2.jar//me.clip.placeholderapi.PlaceholderAPI.setPlaceholders(PlaceholderAPI.java:71)
[14:48:01 ERROR]:   PlaceholderAPI-2.11.2.jar//me.clip.placeholderapi.PlaceholderAPI.setPlaceholders(PlaceholderAPI.java:99)
[14:48:01 ERROR]:   TABBridge-2.0.10.jar//me.neznamy.tab.bridge.bukkit.BukkitPlatform.lambda$createPlaceholder$2(BukkitPlatform.java:196)
[14:48:01 ERROR]:   TABBridge-2.0.10.jar//me.neznamy.tab.bridge.bukkit.BukkitPlatform$$Lambda$10574/0x0000000802f5f8b0.apply(Unknown Source)
[14:48:01 ERROR]:   TABBridge-2.0.10.jar//me.neznamy.tab.bridge.shared.placeholder.PlayerPlaceholder.request(PlayerPlaceholder.java:30)
[14:48:01 ERROR]:   TABBridge-2.0.10.jar//me.neznamy.tab.bridge.shared.placeholder.PlayerPlaceholder.update(PlayerPlaceholder.java:20)
[14:48:01 ERROR]:   TABBridge-2.0.10.jar//me.neznamy.tab.bridge.shared.DataBridge.updatePlaceholders(DataBridge.java:237)
[14:48:01 ERROR]:   TABBridge-2.0.10.jar//me.neznamy.tab.bridge.shared.DataBridge.lambda$startTasks$1(DataBridge.java:25)
[14:48:01 ERROR]:   TABBridge-2.0.10.jar//me.neznamy.tab.bridge.shared.DataBridge$$Lambda$7798/0x000000080245b6b0.run(Unknown Source)
[14:48:01 ERROR]:   org.bukkit.craftbukkit.v1_19_R2.scheduler.CraftTask.run(CraftTask.java:101)
[14:48:01 ERROR]:   org.bukkit.craftbukkit.v1_19_R2.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:57)
[14:48:01 ERROR]:   com.destroystokyo.paper.ServerSchedulerReportingWrapper.run(ServerSchedulerReportingWrapper.java:22)
[14:48:01 ERROR]:   java.base@17.0.6/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
[14:48:01 ERROR]:   java.base@17.0.6/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
[14:48:01 ERROR]:   java.base@17.0.6/java.lang.Thread.run(Thread.java:833)

That's all, thought you might be interested to know about this error. It doesn't break anything.

[NEZNAMY]

It does though https://github.com/NEZNAMY/TAB-Bridge/blob/main/src/main/java/me/neznamy/tab/bridge/bukkit/BukkitBridge.java#L58

[RealTriassic]

Yeah, really interesting

[RealTriassic]

I think it could be useful to note that it doesn't happen every reboot, I personally reboot my server every 12 hours and it only happens sometimes.

[NEZNAMY]

Plugin is almost not using the bukkit scheduler anymore. Reopen if issue is still present in latest version.