public void setCollisionShape(CollisionShape collisionShape) {
        this.collisionShape = collisionShape;
    }
Sets a CollisionShape to this physics object, note that the object should
not be in the physics space when adding a new collision shape as it is rebuilt
on the physics side.
@param collisionShape the CollisionShape to set
jme3-jbullet/src/main/java/com/jme3/bullet/collision/PhysicsCollisionObject.java