Startup Issue with Minecraft - Java Version too old for minecraft install

Technical Support
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1

System Information

Field Value
Operating System Linux - Debian GNU/Linux 13 on x86_64
Product AMP ‘Deimos’ v2.7.2.4 (Mainline)
Virtualization Docker
Application Minecraft
Module MinecraftModule
Running in Container Yes
Current State Failed

Problem Description

Issue

LOGS:
Error: LinkageError occurred while loading main class net.minecraft.bundler.Main
java.lang.UnsupportedClassVersionError: net/minecraft/bundler/Main has been compiled by a more recent version of the Java Runtime (class file version 69.0), this version of the Java Runtime only recognizes class file versions up to 65.0

Reproduction Steps

  • Installed newer version of Java on Debina Server
  • Rebooted Debian server
  • Used different version of Minecraft
2

Switch the java version in AMP’s settings to 21, then back to 25

3

That worked, thank you!

That worked for me, thank you very much!