@Override
    public void write(JmeExporter ex) throws IOException {
        OutputCapsule oc = ex.getCapsule(this);
        oc.write(affectedJoints, "affectedJoints", null);
    }
Remove the specified Joint and all its ancestors.

@param start the starting point (may be null, unaffected)
@return this
jme3-core/src/main/java/com/jme3/anim/ArmatureMask.java