Error when stoping the server on Java16

[TUCAOEVER]

Description

Steps to Reproduce

when stopping the server

Expected Behavior

no error

Errors / Screenshots

[23:52:58 ERROR]: Error occurred while disabling Skript v2.5.3 (Is it up to date?)
java.lang.BootstrapMethodError: java.lang.IllegalStateException: zip file closed
        at io.github.apickledwalrus.skriptgui.gui.SkriptGUIEvent.unregisterAll(SkriptGUIEvent.java:96) ~[?:?]
        at io.github.apickledwalrus.skriptgui.gui.TriggerUnregisterListener.unregisterAll(TriggerUnregisterListener.java:44) ~[?:?]
        at ch.njol.skript.SkriptEventHandler.removeAllTriggers(SkriptEventHandler.java:248) ~[?:?]
        at ch.njol.skript.Skript.disableScripts(Skript.java:972) ~[?:?]
        at ch.njol.skript.Skript.onDisable(Skript.java:1034) ~[?:?]
        at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:265) ~[patched_1.16.5.jar:git-Paper-704]
        at org.bukkit.plugin.java.JavaPluginLoader.disablePlugin(JavaPluginLoader.java:399) ~[patched_1.16.5.jar:git-Paper-704]
        at org.bukkit.plugin.SimplePluginManager.disablePlugin(SimplePluginManager.java:528) ~[patched_1.16.5.jar:git-Paper-704]
        at org.bukkit.plugin.SimplePluginManager.disablePlugins(SimplePluginManager.java:514) ~[patched_1.16.5.jar:git-Paper-704]
        at org.bukkit.plugin.SimplePluginManager.disablePlugins(SimplePluginManager.java:507) ~[patched_1.16.5.jar:git-Paper-704]
        at org.bukkit.craftbukkit.v1_16_R3.CraftServer.disablePlugins(CraftServer.java:452) ~[patched_1.16.5.jar:git-Paper-704]
        at net.minecraft.server.v1_16_R3.MinecraftServer.stop(MinecraftServer.java:898) ~[patched_1.16.5.jar:git-Paper-704]
        at net.minecraft.server.v1_16_R3.DedicatedServer.stop(DedicatedServer.java:746) ~[patched_1.16.5.jar:git-Paper-704]
        at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1174) ~[patched_1.16.5.jar:git-Paper-704]
        at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:290) ~[patched_1.16.5.jar:git-Paper-704]
        at java.lang.Thread.run(Thread.java:831) [?:?]
Caused by: java.lang.IllegalStateException: zip file closed
        at java.util.zip.ZipFile.ensureOpen(ZipFile.java:828) ~[?:?]
        at java.util.zip.ZipFile.getEntry(ZipFile.java:327) ~[?:?]
        at java.util.jar.JarFile.getEntry(JarFile.java:513) ~[?:?]
        at java.util.jar.JarFile.getJarEntry(JarFile.java:468) ~[?:?]
        at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:165) ~[patched_1.16.5.jar:git-Paper-704]
        at java.lang.ClassLoader.loadClass(ClassLoader.java:586) ~[?:?]
        at org.bukkit.plugin.java.PluginClassLoader.loadClass0(PluginClassLoader.java:119) ~[patched_1.16.5.jar:git-Paper-704]
        at org.bukkit.plugin.java.PluginClassLoader.loadClass(PluginClassLoader.java:114) ~[patched_1.16.5.jar:git-Paper-704]
        at java.lang.ClassLoader.loadClass(ClassLoader.java:519) ~[?:?]
        ... 16 more

Server Information

• Server version/platform: Paper version git-Paper-704 (MC: 1.16.5)
• skript-gui version: latest
• Skript version: 2.5.3

Additional Context

[APickledWalrus]

I don't really see what skript-gui could be doing to cause this. Does this happen every time you restart your server?

[TUCAOEVER]

yes every time when i restart server
Edit: when no player join the server and no gui opens
2nd Edit: fixed by editing SkriptGUIEvent.java (starts from 96 line)
if (listeners.size() != 0) { listeners.forEach(GUIListener::finalize); }

[APickledWalrus]

Even if the listeners list was empty, it shouldn't cause an error. I'm honestly not too sure what's going on here though.

[APickledWalrus]

I mean that seems to fix it so it'll do

[APickledWalrus]

Fixed with https://github.com/APickledWalrus/skript-gui/releases/tag/1.3-alpha2