Adding @Override to cloneForSpatial() methods in examples.

jme3-examples/src/main/java/jme3test/bullet/PhysicsHoverControl.java

@@ -94,6 +94,7 @@ public class PhysicsHoverControl extends PhysicsVehicle implements PhysicsContro
         createWheels();
     }
 
+    @Override
     public Control cloneForSpatial(Spatial spatial) {
         throw new UnsupportedOperationException("Not supported yet.");
     }

jme3-examples/src/main/java/jme3test/light/TestPssmShadow.java

@@ -253,6 +253,7 @@ public class TestPssmShadow extends SimpleApplication implements ActionListener
         protected void controlRender(RenderManager rm, ViewPort vp) {
         }
 
+        @Override
         public Control cloneForSpatial(Spatial spatial) {
             return null;
         }