public boolean isKinematic() {
        if (kinematicWeight > 0f) {
            return true;
        } else {
            return false;
        }
    }
Test whether the link is in kinematic mode.

@return true if kinematic, or false if purely dynamic
jme3-jbullet/src/main/java/com/jme3/bullet/animation/PhysicsLink.java