this mod allows loading custom java class files in to minecraft
known bugs:
when running its log a few warnings
when running its can be run a few extra compiling
Features:
NO REMAPPING: may be later but now no remapping
CLASS RUNNING: just create a java class file and make it implements KajavaPlugin(its in io.github.kadir1243.kajava.api package) finally add to runnableClasses
Groovy:0.0.5 version adds support for groovy
Java:all versions support java
When you run minecraft this mod automaticly compiles custom class files and loads in to minecraft (loaded files not automaticly runs read classrunning)
TODO LIST:
Remapping
other programming Languages
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.18.2
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as kajava-0.0.7.jar — drop this file into the mods folder
- Download size: 983 KB
- Download link checked 5 Sept 2026 — working
These come from our own check of the pack file, not from the source page.