@Override
    public Object jmeClone() {
        try {
            Armature clone = (Armature) super.clone();
            return clone;
        } catch (CloneNotSupportedException ex) {
            throw new AssertionError();
        }
    }
returns the number of joints of this armature

@return the count (&ge;0)
jme3-core/src/main/java/com/jme3/anim/Armature.java