public Joint getJoint(String name) {
        for (int i = 0; i < jointList.length; i++) {
            if (jointList[i].getName().equals(name)) {
                return jointList[i];
            }
        }
        return null;
    }
returns the joint with the given name

@param name the name to search for
@return the pre-existing instance or null if not found
jme3-core/src/main/java/com/jme3/anim/Armature.java