Error occurred while disabling WorldGuard. (java.lang.IllegalStateException: zip file closed)

[andrewkm]

WorldEdit Version

WorldEdit v7.3.0-SNAPSHOT+6625-64bcf66

WorldGuard Version

WorldGuard v7.1.0-SNAPSHOT+2258-0a9eb44

Platform Version

git-Paper-385 (MC: 1.20.4) (Git: 8c8862f)

Confirmations

• I am using the most recent Minecraft release.
• I am using a version of WorldEdit compatible with my Minecraft version.
• I am using a version of WorldGuard compatible with my Minecraft version.
• I am using the latest or recommended version of my platform software.
• I am NOT using a hybrid server, e.g. a server that combines Bukkit and Forge. Examples include Arclight, Mohist, and Cardboard.
• I am NOT using a fork of WorldEdit, such as FastAsyncWorldEdit (FAWE) or AsyncWorldEdit (AWE)

Bug Description

Encountering error on server stop, happens 25% of the time or so.
Error: https://pastebin.com/raw/cbGubEzA

[21:50:54] [Server thread/INFO]: [WorldGuard] Disabling WorldGuard v7.1.0-SNAPSHOT+2258-0a9eb44
[21:50:54] [Server thread/INFO]: [WorldGuard] Shutting down executor and cancelling any pending tasks...
[21:50:54] [Server thread/ERROR]: Error occurred while disabling WorldGuard v7.1.0-SNAPSHOT+2258-0a9eb44
java.lang.IllegalStateException: zip file closed
	at java.util.zip.ZipFile.ensureOpen(ZipFile.java:846) ~[?:?]
	at java.util.zip.ZipFile.getEntry(ZipFile.java:338) ~[?:?]
	at java.util.jar.JarFile.getEntry(JarFile.java:516) ~[?:?]
	at java.util.jar.JarFile.getJarEntry(JarFile.java:471) ~[?:?]
	at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:209) ~[paper-api-1.20.4-R0.1-SNAPSHOT.jar:?]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:593) ~[?:?]
	at org.bukkit.plugin.java.PluginClassLoader.loadClass0(PluginClassLoader.java:169) ~[paper-api-1.20.4-R0.1-SNAPSHOT.jar:?]
	at org.bukkit.plugin.java.PluginClassLoader.loadClass(PluginClassLoader.java:164) ~[paper-api-1.20.4-R0.1-SNAPSHOT.jar:?]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:526) ~[?:?]
	at net.goldtreeservers.worldguardextraflags.wg.handlers.GlideFlagHandler.onAbsentValue(GlideFlagHandler.java:57) ~[WorldGuardExtraFlags.jar:?]
	at net.goldtreeservers.worldguardextraflags.wg.handlers.GlideFlagHandler.onAbsentValue(GlideFlagHandler.java:18) ~[WorldGuardExtraFlags.jar:?]
	at com.sk89q.worldguard.session.handler.FlagValueChangeHandler.onClearValue(FlagValueChangeHandler.java:86) ~[worldguard-bukkit-7.1.0-SNAPSHOT-dist.jar:?]
	at com.sk89q.worldguard.session.handler.FlagValueChangeHandler.uninitialize(FlagValueChangeHandler.java:50) ~[worldguard-bukkit-7.1.0-SNAPSHOT-dist.jar:?]
	at com.sk89q.worldguard.session.Session.uninitialize(Session.java:134) ~[worldguard-bukkit-7.1.0-SNAPSHOT-dist.jar:?]
	at com.sk89q.worldguard.bukkit.session.BukkitSessionManager.shutdown(BukkitSessionManager.java:92) ~[worldguard-bukkit-7.1.0-SNAPSHOT-dist.jar:?]
	at com.sk89q.worldguard.bukkit.BukkitWorldGuardPlatform.unload(BukkitWorldGuardPlatform.java:149) ~[worldguard-bukkit-7.1.0-SNAPSHOT-dist.jar:?]
	at com.sk89q.worldguard.WorldGuard.disable(WorldGuard.java:219) ~[worldguard-bukkit-7.1.0-SNAPSHOT-dist.jar:?]
	at com.sk89q.worldguard.bukkit.WorldGuardPlugin.onDisable(WorldGuardPlugin.java:268) ~[worldguard-bukkit-7.1.0-SNAPSHOT-dist.jar:?]
	at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:283) ~[paper-api-1.20.4-R0.1-SNAPSHOT.jar:?]
	at io.papermc.paper.plugin.manager.PaperPluginInstanceManager.disablePlugin(PaperPluginInstanceManager.java:225) ~[paper-1.20.4.jar:git-Paper-385]
	at io.papermc.paper.plugin.manager.PaperPluginInstanceManager.disablePlugins(PaperPluginInstanceManager.java:149) ~[paper-1.20.4.jar:git-Paper-385]
	at io.papermc.paper.plugin.manager.PaperPluginManagerImpl.disablePlugins(PaperPluginManagerImpl.java:92) ~[paper-1.20.4.jar:git-Paper-385]
	at org.bukkit.plugin.SimplePluginManager.disablePlugins(SimplePluginManager.java:528) ~[paper-api-1.20.4-R0.1-SNAPSHOT.jar:?]
	at org.bukkit.craftbukkit.v1_20_R3.CraftServer.disablePlugins(CraftServer.java:568) ~[paper-1.20.4.jar:git-Paper-385]
	at net.minecraft.server.MinecraftServer.stopServer(MinecraftServer.java:976) ~[paper-1.20.4.jar:git-Paper-385]
	at net.minecraft.server.dedicated.DedicatedServer.stopServer(DedicatedServer.java:821) ~[paper-1.20.4.jar:git-Paper-385]
	at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1259) ~[paper-1.20.4.jar:git-Paper-385]
	at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:321) ~[paper-1.20.4.jar:git-Paper-385]
	at java.lang.Thread.run(Thread.java:1583) ~[?:?]

Expected Behavior

No error while stopping server.

Reproduction Steps

1. Stop server
2. Observer error, 25% of the time...

Optional WorldGuard-Report

No response

Anything Else?

Unsure if related but I do notice the following in the error:

at net.goldtreeservers.worldguardextraflags.wg.handlers.GlideFlagHandler.onAbsentValue(GlideFlagHandler.java:57) ~[WorldGuardExtraFlags.jar:?]
at net.goldtreeservers.worldguardextraflags.wg.handlers.GlideFlagHandler.onAbsentValue(GlideFlagHandler.java:18) ~[WorldGuardExtraFlags.jar:?]

Unsure if this would mean the problem is with WorldGuardExtraFlags or with WorldGuard itself.

If you require any other information please let me know, thanks.

[andrewkm]

For others who find this issue: https://madelinemiller.dev/blog/minecraft-zip-file-closed/
(I should've searched the issues first, my bad).