protected String findManager(Joint startBone) {
        String managerName;
        Joint bone = startBone;
        while (true) {
            String boneName = bone.getName();
            if (hasBoneLink(boneName)) {
                managerName = boneName;
                break;
            }
            bone = bone.getParent();
            if (bone == null) {
                managerName = torsoName;
                break;
            }
        }

        assert managerName != null;
        return managerName;
    }
Find the manager of the specified bone.

@param startBone the bone (not null, unaffected)
@return a bone/torso name (not null)
jme3-jbullet/src/main/java/com/jme3/bullet/animation/DacConfiguration.java