Java SE (Java Platform, Standard Edition)

There is a texture I have to apply to a sphere. It has an arrow along equator.

When I applied a PhongMaterial with that texture to my sphere, an arrow I needed on top, was on the bottom facing direction opposite of what I needed.

I then called

                    final Sphere sphLeaf = new Sphere(R);

                    sphLeaf.setRotationAxis(Rotate.X_AXIS);

                    sphLeaf.setRotate(180.0);

Then the arrow was correctly placed on top of the sphere, but still facing wrong direction.

I thought that calling

                    sphLeaf.setRotationAxis(Rotate.Y_AXIS);

                    sphLeaf.setRotate(180.0);

would point my arrow where I needed, but instead it was now on the side of the sphere, though facing the right direction.

I thought that each call to setRotationAxis must limit rotation to that axis only. Why is there extra rotation occurring on top of what I requested?