Can I increase my stack size to fix this?

No, stack size is determined by JVM startup flags which are managed by our administrators. Please contact support if you suspect your server requires custom flags.

Will upgrading my RAM fix a StackOverflowError?

No, this error is caused by a logic loop in the code, not by a lack of total system memory. Upgrading your plan will not resolve this specific issue.

How do I find the error log?

You can view your server logs directly through the File Manager in your AwakeNode control panel by opening the logs folder and selecting latest.log.

Is my world permanently lost?

Not necessarily. If the error is caused by a specific entity or chunk, you may be able to use external tools like MCEdit or Amulet to remove the corrupted data.

Fixing java.lang.StackOverflowError on Minecraft Servers

What is a StackOverflowError?

A java.lang.StackOverflowError occurs when a thread in the Java Virtual Machine (JVM) exceeds the stack size allocated to it. In the context of Minecraft servers, this typically happens when a piece of code enters an infinite loop of method calls, causing the stack to grow until it runs out of memory.

Common Causes

Corrupted World Data: Often triggered by chunk errors or entities with invalid NBT data.
Incompatible Plugins/Mods: Two plugins attempting to call each other in a recursive loop.
Complex Redstone/Command Blocks: Extremely deep or circular logic chains.

How to fix it

1. Identify the culprit

Check your server logs in the File Manager. Look for a stack trace immediately following the error. This will usually name the specific plugin, mod, or class file responsible for the loop.

2. Remove problematic content

On AwakeNode: Use the File Manager to locate and remove the identified plugin or mod. If the error persists, you may need to use the Mod Installer or Plugin Installer to perform a clean reinstall of your server's dependencies.
On other hosts: Use an SFTP client to access your server files. Navigate to the plugins or mods folder and remove the file identified in the stack trace, then restart your server.

3. Check for world corruption

If the error occurs as soon as a player logs in or a specific chunk loads, your world data may be corrupted.

On AwakeNode: You can use the File Manager to rename your world folder to force the server to generate a fresh map. If the server starts successfully, the issue lies within your original world files.
On other hosts: Manually rename or move your world folder via SFTP to test if the server boots with a clean world.

4. Contact Support

If the error persists despite removing plugins and testing a new world, the issue may be related to underlying JVM arguments. Clients cannot edit these manually. Please open a ticket with AwakeNode Support, and our team will investigate the startup flags and memory allocation for you.

java.lang.StackOverflowError