use_own_jme

Download jme3 project from svn

Make your changes

Compile jme3 project

Go to Tools → Libraries

Press “New Library

Name it “jme3-modified

Press “Add Jar/Folder

Select all JAR files from the dist dir of the compiled jme3 version

Add the src folder of the jme3 project in the “sources tab

Optionally javadoc in the “javadoc tab

Press “OK

Right-click your project and select “Properties

Select “Libraries to the left

Remove the “jme3 library

Press “Add Library and select the “jme3-modified library