private void createMaterial() {
        mat1 = new Material(assetManager, "Common/MatDefs/Misc/Unshaded.j3md");
        mat1.setColor("Color", ColorRGBA.Green);
        mat2 = new Material(assetManager, "Common/MatDefs/Misc/Unshaded.j3md");
        mat2.setColor("Color", ColorRGBA.Red);
        mat3 = new Material(assetManager, "Common/MatDefs/Misc/Unshaded.j3md");
        mat3.setColor("Color", ColorRGBA.Yellow);
    }
This is a basic Test of jbullet-jme functions

@author normenhansen
jme3-examples/src/main/java/jme3test/bullet/TestCollisionShapeFactory.java