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modifying exception handling for completeSetup, now it will print the log and stack traces together#2151

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modifying exception handling for completeSetup, now it will print the log and stack traces together#2151
4o4E wants to merge 1 commit intoBentoBoxWorld:developfrom
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@4o4E 4o4E commented Jun 29, 2023

Before this PR, when an exception occurred during a completeSetup like this, the log would look like the following, with CRITICAL ERROR and stack trace not connected together.

[00:13:44] [Server thread/ERROR]: [BentoBox] *****************CRITICAL ERROR!******************
[00:13:44] [Server thread/ERROR]: [BentoBox] null
[00:13:44] [Server thread/ERROR]: [BentoBox]  Disabling BentoBox...
[00:13:44] [Server thread/ERROR]: [BentoBox] *************************************************
[00:13:44] [Server thread/INFO]: [BentoBox] Disabling addons...
[00:13:44] [Server thread/INFO]: [BentoBox] Disabling Level...
[00:13:44] [Server thread/INFO]: [BentoBox] [Level] Stopping Level queue
[00:13:44] [Server thread/INFO]: [Pladdon] Disabling Pladdon v2.9.0
[00:13:44] [Server thread/INFO]: [BentoBox] Disabling BSkyBlock...
[00:13:44] [Server thread/INFO]: [Pladdon] Disabling Pladdon v1.16.0
[00:13:44] [Server thread/INFO]: [BentoBox] Disabling ControlPanel...
[00:13:44] [Server thread/INFO]: [BentoBox] Disabling Chat...
[00:13:44] [Server thread/INFO]: [BentoBox] Disabling Biomes...
[00:13:44] [Server thread/ERROR]: [BentoBox] Error occurred when disabling addon Biomes
[00:13:44] [Server thread/ERROR]: [BentoBox] Report this to the addon's author(s)
[00:13:44] [Server thread/ERROR]: [BentoBox] [BONNe]
[00:13:44] [Server thread/ERROR]: [BentoBox] java.lang.NullPointerException: Cannot invoke "world.bentobox.biomes.tasks.UpdateQueue.getTask()" because "this.biomeUpdateQueue" is null
	at Biomes-2.0.0.jar//world.bentobox.biomes.BiomesAddon.onDisable(BiomesAddon.java:240)
	at BentoBox-1.21.1.jar//world.bentobox.bentobox.managers.AddonsManager.disable(AddonsManager.java:622)
	at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)
	at BentoBox-1.21.1.jar//world.bentobox.bentobox.managers.AddonsManager.disableAddons(AddonsManager.java:415)
	at BentoBox-1.21.1.jar//world.bentobox.bentobox.BentoBox.fireCriticalError(BentoBox.java:273)
	at BentoBox-1.21.1.jar//world.bentobox.bentobox.BentoBox.lambda$onEnable$0(BentoBox.java:173)
	at org.bukkit.craftbukkit.v1_19_R1.scheduler.CraftTask.run(CraftTask.java:101)
	at org.bukkit.craftbukkit.v1_19_R1.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:483)
	at net.minecraft.server.MinecraftServer.v(MinecraftServer.java:1151)
	at net.minecraft.server.MinecraftServer.lambda$spin$1(MinecraftServer.java:308)
	at java.base/java.lang.Thread.run(Thread.java:833)

[00:13:44] [Server thread/INFO]: [Pladdon] Disabling Pladdon v1.0
[00:13:44] [Server thread/INFO]: [BentoBox] Disabling Warps...
[00:13:44] [Server thread/INFO]: [Pladdon] Disabling Pladdon v1.0
[00:13:44] [Server thread/INFO]: [BentoBox] Disabling Limits...
[00:13:44] [Server thread/INFO]: [BentoBox] Disabling Bank...
[00:13:44] [Server thread/INFO]: [Pladdon] Disabling Pladdon v1.4.0
[00:13:44] [Server thread/INFO]: [BentoBox] Disabling MagicCobblestoneGenerator...
[00:13:44] [Server thread/INFO]: [Pladdon] Disabling Pladdon v1.0
[00:13:44] [Server thread/INFO]: [BentoBox] Disabling Challenges...
[00:13:44] [Server thread/INFO]: [Pladdon] Disabling Pladdon v1.0
[00:13:44] [Server thread/INFO]: [BentoBox] Addons successfully disabled.
[00:13:44] [Server thread/INFO]: [BentoBox] Removing coops from islands...
[00:13:44] [Server thread/INFO]: [BentoBox] Saving islands - this has to be done sync so it may take a while with a lot of islands...
[00:13:44] [Server thread/INFO]: [BentoBox] Islands saved.
[00:13:44] [Server thread/INFO]: [BentoBox] Closing database.
[00:13:44] [Server thread/WARN]: java.util.ConcurrentModificationException
[00:13:44] [Server thread/WARN]: 	at java.base/java.util.WeakHashMap$HashIterator.nextEntry(WeakHashMap.java:809)
[00:13:44] [Server thread/WARN]: 	at java.base/java.util.WeakHashMap$KeyIterator.next(WeakHashMap.java:842)
[00:13:44] [Server thread/WARN]: 	at java.base/java.util.AbstractCollection.finishToArray(AbstractCollection.java:229)
[00:13:44] [Server thread/WARN]: 	at java.base/java.util.AbstractCollection.toArray(AbstractCollection.java:148)
[00:13:44] [Server thread/WARN]: 	at com.google.common.collect.ImmutableSet.copyOf(ImmutableSet.java:238)
[00:13:44] [Server thread/WARN]: 	at org.bukkit.plugin.SimplePluginManager.getDefaultPermSubscriptions(SimplePluginManager.java:937)
[00:13:44] [Server thread/WARN]: 	at org.bukkit.plugin.SimplePluginManager.dirtyPermissibles(SimplePluginManager.java:857)
[00:13:44] [Server thread/WARN]: 	at org.bukkit.plugin.SimplePluginManager.calculatePermissionDefault(SimplePluginManager.java:845)
[00:13:44] [Server thread/WARN]: 	at org.bukkit.plugin.SimplePluginManager.addPermission(SimplePluginManager.java:806)
[00:13:44] [Server thread/WARN]: 	at org.bukkit.plugin.SimplePluginManager.addPermission(SimplePluginManager.java:794)
[00:13:44] [Server thread/WARN]: 	at org.bukkit.util.permissions.DefaultPermissions.registerPermission(DefaultPermissions.java:26)
[00:13:44] [Server thread/WARN]: 	at org.bukkit.util.permissions.DefaultPermissions.registerPermission(DefaultPermissions.java:18)
[00:13:44] [Server thread/WARN]: 	at org.bukkit.util.permissions.DefaultPermissions.registerPermission(DefaultPermissions.java:62)
[00:13:44] [Server thread/WARN]: 	at BentoBox-1.21.1.jar//world.bentobox.bentobox.managers.AddonsManager.registerPermission(AddonsManager.java:290)
[00:13:44] [Server thread/WARN]: 	at BentoBox-1.21.1.jar//world.bentobox.bentobox.managers.AddonsManager.setPerms(AddonsManager.java:265)
[00:13:44] [Server thread/WARN]: 	at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)
[00:13:44] [Server thread/WARN]: 	at BentoBox-1.21.1.jar//world.bentobox.bentobox.managers.AddonsManager.enableAddons(AddonsManager.java:254)
[00:13:44] [Server thread/WARN]: 	at BentoBox-1.21.1.jar//world.bentobox.bentobox.BentoBox.completeSetup(BentoBox.java:188)
[00:13:44] [Server thread/WARN]: 	at BentoBox-1.21.1.jar//world.bentobox.bentobox.BentoBox.lambda$onEnable$0(BentoBox.java:171)
[00:13:44] [Server thread/WARN]: 	at org.bukkit.craftbukkit.v1_19_R1.scheduler.CraftTask.run(CraftTask.java:101)
[00:13:44] [Server thread/WARN]: 	at org.bukkit.craftbukkit.v1_19_R1.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:483)
[00:13:44] [Server thread/WARN]: 	at net.minecraft.server.MinecraftServer.v(MinecraftServer.java:1151)
[00:13:44] [Server thread/WARN]: 	at net.minecraft.server.MinecraftServer.lambda$spin$1(MinecraftServer.java:308)
[00:13:44] [Server thread/WARN]: 	at java.base/java.lang.Thread.run(Thread.java:833)

After this PR, the logs will be as follows

[22:34:31] [Server thread/WARN]: [BentoBox] unexpected exception occurred during completeSetup, Disabling BentoBox...
java.util.ConcurrentModificationException: null
	at java.util.WeakHashMap$HashIterator.nextEntry(WeakHashMap.java:809) ~[?:?]
	at java.util.WeakHashMap$KeyIterator.next(WeakHashMap.java:842) ~[?:?]
	at java.util.AbstractCollection.toArray(AbstractCollection.java:146) ~[?:?]
	at com.google.common.collect.ImmutableSet.copyOf(ImmutableSet.java:238) ~[guava-31.0.1-jre.jar:?]
	at org.bukkit.plugin.SimplePluginManager.getDefaultPermSubscriptions(SimplePluginManager.java:937) ~[purpur-api-1.19-R0.1-SNAPSHOT.jar:?]
	at org.bukkit.plugin.SimplePluginManager.dirtyPermissibles(SimplePluginManager.java:857) ~[purpur-api-1.19-R0.1-SNAPSHOT.jar:?]
	at org.bukkit.plugin.SimplePluginManager.calculatePermissionDefault(SimplePluginManager.java:845) ~[purpur-api-1.19-R0.1-SNAPSHOT.jar:?]
	at org.bukkit.plugin.SimplePluginManager.addPermission(SimplePluginManager.java:806) ~[purpur-api-1.19-R0.1-SNAPSHOT.jar:?]
	at org.bukkit.plugin.SimplePluginManager.addPermission(SimplePluginManager.java:794) ~[purpur-api-1.19-R0.1-SNAPSHOT.jar:?]
	at org.bukkit.util.permissions.DefaultPermissions.registerPermission(DefaultPermissions.java:26) ~[purpur-api-1.19-R0.1-SNAPSHOT.jar:?]
	at org.bukkit.util.permissions.DefaultPermissions.registerPermission(DefaultPermissions.java:18) ~[purpur-api-1.19-R0.1-SNAPSHOT.jar:?]
	at org.bukkit.util.permissions.DefaultPermissions.registerPermission(DefaultPermissions.java:62) ~[purpur-api-1.19-R0.1-SNAPSHOT.jar:?]
	at world.bentobox.bentobox.managers.AddonsManager.registerPermission(AddonsManager.java:282) ~[BentoBox-1.21.1-SNAPSHOT-LOCAL.jar:?]
	at world.bentobox.bentobox.managers.AddonsManager.setPerms(AddonsManager.java:250) ~[BentoBox-1.21.1-SNAPSHOT-LOCAL.jar:?]
	at java.util.ArrayList.forEach(ArrayList.java:1511) ~[?:?]
	at world.bentobox.bentobox.managers.AddonsManager.enableAddons(AddonsManager.java:239) ~[BentoBox-1.21.1-SNAPSHOT-LOCAL.jar:?]
	at world.bentobox.bentobox.BentoBox.completeSetup(BentoBox.java:196) ~[BentoBox-1.21.1-SNAPSHOT-LOCAL.jar:?]
	at world.bentobox.bentobox.BentoBox.lambda$onEnable$0(BentoBox.java:172) ~[BentoBox-1.21.1-SNAPSHOT-LOCAL.jar:?]
	at org.bukkit.craftbukkit.v1_19_R1.scheduler.CraftTask.run(CraftTask.java:101) ~[purpur-1.19.jar:git-Purpur-1735]
	at org.bukkit.craftbukkit.v1_19_R1.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:483) ~[purpur-1.19.jar:git-Purpur-1735]
	at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1151) ~[purpur-1.19.jar:git-Purpur-1735]
	at net.minecraft.server.MinecraftServer.lambda$spin$1(MinecraftServer.java:308) ~[purpur-1.19.jar:git-Purpur-1735]
	at java.lang.Thread.run(Thread.java:833) ~[?:?]
[22:34:31] [Server thread/INFO]: [BentoBox] Disabling addons...
[22:34:31] [Server thread/INFO]: [BentoBox] Disabling Level...
[22:34:31] [Server thread/INFO]: [BentoBox] [Level] Stopping Level queue
[22:34:31] [Server thread/INFO]: [Pladdon] Disabling Pladdon v2.9.0
[22:34:31] [Server thread/INFO]: [BentoBox] Disabling BSkyBlock...
[22:34:31] [Server thread/INFO]: [Pladdon] Disabling Pladdon v1.16.0
[22:34:31] [Server thread/INFO]: [BentoBox] Disabling ControlPanel...
[22:34:31] [Server thread/INFO]: [BentoBox] Disabling Chat...
[22:34:31] [Server thread/INFO]: [BentoBox] Disabling Biomes...
[22:34:31] [Server thread/ERROR]: [BentoBox] Error occurred when disabling addon Biomes
[22:34:31] [Server thread/ERROR]: [BentoBox] Report this to the addon's author(s)
[22:34:31] [Server thread/ERROR]: [BentoBox] [BONNe]
[22:34:31] [Server thread/ERROR]: [BentoBox] java.lang.NullPointerException: Cannot invoke "world.bentobox.biomes.tasks.UpdateQueue.getTask()" because "this.biomeUpdateQueue" is null
	at Biomes-2.0.0.jar//world.bentobox.biomes.BiomesAddon.onDisable(BiomesAddon.java:240)
	at BentoBox-1.21.1-SNAPSHOT-LOCAL.jar//world.bentobox.bentobox.managers.AddonsManager.disable(AddonsManager.java:626)
	at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)
	at BentoBox-1.21.1-SNAPSHOT-LOCAL.jar//world.bentobox.bentobox.managers.AddonsManager.disableAddons(AddonsManager.java:411)
	at BentoBox-1.21.1-SNAPSHOT-LOCAL.jar//world.bentobox.bentobox.BentoBox.lambda$onEnable$0(BentoBox.java:180)
	at org.bukkit.craftbukkit.v1_19_R1.scheduler.CraftTask.run(CraftTask.java:101)
	at org.bukkit.craftbukkit.v1_19_R1.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:483)
	at net.minecraft.server.MinecraftServer.v(MinecraftServer.java:1151)
	at net.minecraft.server.MinecraftServer.lambda$spin$1(MinecraftServer.java:308)
	at java.base/java.lang.Thread.run(Thread.java:833)

[22:34:31] [Server thread/INFO]: [Pladdon] Disabling Pladdon v1.0
[22:34:31] [Server thread/INFO]: [BentoBox] Disabling Warps...
[22:34:31] [Server thread/INFO]: [Pladdon] Disabling Pladdon v1.0
[22:34:31] [Server thread/INFO]: [BentoBox] Disabling Limits...
[22:34:31] [Server thread/INFO]: [BentoBox] Disabling Bank...
[22:34:31] [Server thread/INFO]: [Pladdon] Disabling Pladdon v1.4.0
[22:34:31] [Server thread/INFO]: [BentoBox] Disabling MagicCobblestoneGenerator...
[22:34:31] [Server thread/INFO]: [Pladdon] Disabling Pladdon v1.0
[22:34:31] [Server thread/INFO]: [BentoBox] Disabling Challenges...
[22:34:31] [Server thread/INFO]: [Pladdon] Disabling Pladdon v1.0
[22:34:31] [Server thread/INFO]: [BentoBox] Addons successfully disabled.
[22:34:31] [Server thread/INFO]: [BentoBox] Removing coops from islands...
[22:34:31] [Server thread/INFO]: [BentoBox] Saving islands - this has to be done sync so it may take a while with a lot of islands...
[22:34:31] [Server thread/INFO]: [BentoBox] Islands saved.
[22:34:31] [Server thread/INFO]: [BentoBox] Closing database.

Regarding the reason for this exception, I suspect that other plugins have run asynchronous tasks to modify permissions, but further testing is needed to determine the cause. Currently, this exception can be replicated multiple times on my server.

Perhaps it is possible to advance permission registration to onEnable?

@BONNe
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BONNe commented Jun 29, 2023

Null-pointer in Biomes is not relevant to the issue.
Which addon was BentoBox enabling when the crash occurred?

What exactly happened before:

[00:13:44] [Server thread/ERROR]: [BentoBox] *****************CRITICAL ERROR!******************
[00:13:44] [Server thread/ERROR]: [BentoBox] null
[00:13:44] [Server thread/ERROR]: [BentoBox]  Disabling BentoBox...
[00:13:44] [Server thread/ERROR]: [BentoBox] *************************************************

@tastybento tastybento added the Type: Enhancement Improvement or modification which is usually a new feature. label Jun 30, 2023
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4o4E commented Jun 30, 2023

Null-pointer in Biomes is not relevant to the issue. Which addon was BentoBox enabling when the crash occurred?

What exactly happened before:

[00:13:44] [Server thread/ERROR]: [BentoBox] *****************CRITICAL ERROR!******************
[00:13:44] [Server thread/ERROR]: [BentoBox] null
[00:13:44] [Server thread/ERROR]: [BentoBox]  Disabling BentoBox...
[00:13:44] [Server thread/ERROR]: [BentoBox] *************************************************

not npe in biome, look at this exception, that's what caused the problem, looks like other plugins are registering permissions at the same time

[22:34:31] [Server thread/WARN]: [BentoBox] unexpected exception occurred during completeSetup, Disabling BentoBox...
java.util.ConcurrentModificationException: null
	at java.util.WeakHashMap$HashIterator.nextEntry(WeakHashMap.java:809) ~[?:?]
	at java.util.WeakHashMap$KeyIterator.next(WeakHashMap.java:842) ~[?:?]
	at java.util.AbstractCollection.toArray(AbstractCollection.java:146) ~[?:?]
	at com.google.common.collect.ImmutableSet.copyOf(ImmutableSet.java:238) ~[guava-31.0.1-jre.jar:?]
	at org.bukkit.plugin.SimplePluginManager.getDefaultPermSubscriptions(SimplePluginManager.java:937) ~[purpur-api-1.19-R0.1-SNAPSHOT.jar:?]
	at org.bukkit.plugin.SimplePluginManager.dirtyPermissibles(SimplePluginManager.java:857) ~[purpur-api-1.19-R0.1-SNAPSHOT.jar:?]
	at org.bukkit.plugin.SimplePluginManager.calculatePermissionDefault(SimplePluginManager.java:845) ~[purpur-api-1.19-R0.1-SNAPSHOT.jar:?]
	at org.bukkit.plugin.SimplePluginManager.addPermission(SimplePluginManager.java:806) ~[purpur-api-1.19-R0.1-SNAPSHOT.jar:?]
	at org.bukkit.plugin.SimplePluginManager.addPermission(SimplePluginManager.java:794) ~[purpur-api-1.19-R0.1-SNAPSHOT.jar:?]
	at org.bukkit.util.permissions.DefaultPermissions.registerPermission(DefaultPermissions.java:26) ~[purpur-api-1.19-R0.1-SNAPSHOT.jar:?]
	at org.bukkit.util.permissions.DefaultPermissions.registerPermission(DefaultPermissions.java:18) ~[purpur-api-1.19-R0.1-SNAPSHOT.jar:?]
	at org.bukkit.util.permissions.DefaultPermissions.registerPermission(DefaultPermissions.java:62) ~[purpur-api-1.19-R0.1-SNAPSHOT.jar:?]
	at world.bentobox.bentobox.managers.AddonsManager.registerPermission(AddonsManager.java:282) ~[BentoBox-1.21.1-SNAPSHOT-LOCAL.jar:?]
	at world.bentobox.bentobox.managers.AddonsManager.setPerms(AddonsManager.java:250) ~[BentoBox-1.21.1-SNAPSHOT-LOCAL.jar:?]
	at java.util.ArrayList.forEach(ArrayList.java:1511) ~[?:?]
	at world.bentobox.bentobox.managers.AddonsManager.enableAddons(AddonsManager.java:239) ~[BentoBox-1.21.1-SNAPSHOT-LOCAL.jar:?]
	at world.bentobox.bentobox.BentoBox.completeSetup(BentoBox.java:196) ~[BentoBox-1.21.1-SNAPSHOT-LOCAL.jar:?]
	at world.bentobox.bentobox.BentoBox.lambda$onEnable$0(BentoBox.java:172) ~[BentoBox-1.21.1-SNAPSHOT-LOCAL.jar:?]
	at org.bukkit.craftbukkit.v1_19_R1.scheduler.CraftTask.run(CraftTask.java:101) ~[purpur-1.19.jar:git-Purpur-1735]
	at org.bukkit.craftbukkit.v1_19_R1.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:483) ~[purpur-1.19.jar:git-Purpur-1735]
	at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1151) ~[purpur-1.19.jar:git-Purpur-1735]
	at net.minecraft.server.MinecraftServer.lambda$spin$1(MinecraftServer.java:308) ~[purpur-1.19.jar:git-Purpur-1735]
	at java.lang.Thread.run(Thread.java:833) ~[?:?]

btw, the previous implementation, will first execute fireCriticalError, which will execute onDisable before printing the stack trace

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Pull request overview

This PR updates BentoBox’s completeSetup exception handling so that the initial failure message and the associated stack trace are emitted as a single logger event (reducing log interleaving), then triggers a shutdown/disable flow.

Changes:

  • Replace fireCriticalError(...); e.printStackTrace(); with a Logger#log(Level, message, throwable) call to print message + stack trace together.
  • Explicitly set shutdown = true, disable addons, and disable the plugin when completeSetup throws.

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} catch (Exception e) {
fireCriticalError(e.getMessage(), "");
e.printStackTrace();
getLogger().log(Level.WARNING,
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This exception path disables the plugin, so logging it at WARNING is likely too low severity and inconsistent with other critical failure paths that use logError()/SEVERE. Consider using Level.SEVERE here (or delegating to a helper that logs at SEVERE with the Throwable).

Suggested change
getLogger().log(Level.WARNING,
getLogger().log(Level.SEVERE,

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Comment on lines +180 to +186
// Do not save players or islands, just shutdown
shutdown = true;
// Stop all addons
if (addonsManager != null) {
addonsManager.disableAddons();
}
instance.setEnabled(false);
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The shutdown/disable sequence here duplicates the logic in fireCriticalError(...) (shutdown flag, disabling addons, disabling the plugin). To reduce divergence risk, consider refactoring to reuse the existing method (e.g., extend fireCriticalError to accept a Throwable for combined message+stack trace, then call it from here).

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fireCriticalError(e.getMessage(), "");
e.printStackTrace();
getLogger().log(Level.WARNING,
"unexpected exception occurred during completeSetup, Disabling BentoBox...", e);
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Log message casing/grammar: consider capitalizing the first word ("Unexpected") and avoiding the comma splice (e.g., split into two sentences) for consistency with other BentoBox log lines.

Suggested change
"unexpected exception occurred during completeSetup, Disabling BentoBox...", e);
"Unexpected exception occurred during completeSetup. Disabling BentoBox...", e);

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@4o4E 4o4E closed this Mar 4, 2026
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