360 Quality & Efficiency

Mar 20, 2020 · Backend Development

How to Modify Class Files Inside a JAR Using JD-GUI and Eclipse

This guide explains step‑by‑step how to decompile a JAR with JD‑GUI, edit the extracted Java source in Eclipse, recompile the class, replace it in the original JAR, and rebuild the package, providing a practical method for updating embedded class files.