Removed some cloneForSpatial() methods that weren't doing anything

that the super class would do.
Adding @Override to cloneForSpatial() methods in jme3-core controls
and CloneableTracks.

jme3-core/src/main/java/com/jme3/animation/AnimControl.java

@@ -108,6 +108,7 @@ public final class AnimControl extends AbstractControl implements Cloneable {
     /**
      * Internal use only.
      */
+    @Override
     public Control cloneForSpatial(Spatial spatial) {
         try {
             AnimControl clone = (AnimControl) super.clone();

jme3-core/src/main/java/com/jme3/animation/AudioTrack.java

@@ -174,6 +174,7 @@ public class AudioTrack implements ClonableTrack {
      * @param spatial the Spatial holding the AnimControl
      * @return the cloned Track with proper reference
      */
+    @Override
     public Track cloneForSpatial(Spatial spatial) {
         AudioTrack audioTrack = new AudioTrack();
         audioTrack.length = this.length;

jme3-core/src/main/java/com/jme3/animation/EffectTrack.java

@@ -263,6 +263,7 @@ public class EffectTrack implements ClonableTrack {
      * @param spatial the Spatial holding the AnimControl
      * @return the cloned Track with proper reference
      */
+    @Override
     public Track cloneForSpatial(Spatial spatial) {
         EffectTrack effectTrack = new EffectTrack();
         effectTrack.particlesPerSeconds = this.particlesPerSeconds;

jme3-core/src/main/java/com/jme3/animation/SkeletonControl.java

@@ -345,6 +345,7 @@ public class SkeletonControl extends AbstractControl implements Cloneable {
         }
     }
 
+    @Override
     public Control cloneForSpatial(Spatial spatial) {
         Node clonedNode = (Node) spatial;
         SkeletonControl clone = new SkeletonControl();

jme3-core/src/main/java/com/jme3/app/StatsView.java

@@ -115,6 +115,7 @@ public class StatsView extends Node implements Control {
         //statistics.clearFrame();
     }
 
+    @Override
     public Control cloneForSpatial(Spatial spatial) {
         return (Control) spatial;
     }

jme3-core/src/main/java/com/jme3/cinematic/events/MotionEvent.java

@@ -274,6 +274,7 @@ public class MotionEvent extends AbstractCinematicEvent implements Control {
      * @param spatial
      * @return
      */
+    @Override
     public Control cloneForSpatial(Spatial spatial) {
         MotionEvent control = new MotionEvent(spatial, path);
         control.playState = playState;

jme3-core/src/main/java/com/jme3/effect/ParticleEmitter.java

@@ -119,6 +119,7 @@ public class ParticleEmitter extends Geometry {
             this.parentEmitter = parentEmitter;
         }
 
+        @Override
         public Control cloneForSpatial(Spatial spatial) {
             return this; // WARNING: Sets wrong control on spatial. Will be
             // fixed automatically by ParticleEmitter.clone() method.

jme3-core/src/main/java/com/jme3/input/ChaseCamera.java

@@ -567,6 +567,7 @@ public class ChaseCamera implements ActionListener, AnalogListener, Control {
      * @param spatial
      * @return
      */
+    @Override
     public Control cloneForSpatial(Spatial spatial) {
         ChaseCamera cc = new ChaseCamera(cam, spatial, inputManager);
         cc.setMaxDistance(getMaxDistance());

jme3-core/src/main/java/com/jme3/scene/control/BillboardControl.java

@@ -86,12 +86,13 @@ public class BillboardControl extends AbstractControl {
         alignment = Alignment.Screen;
     }
 
-    public Control cloneForSpatial(Spatial spatial) {
-        BillboardControl control = new BillboardControl();
-        control.alignment = this.alignment;
-        control.setSpatial(spatial);
-        return control;
-    }
+    // default implementation from AbstractControl is equivalent
+    //public Control cloneForSpatial(Spatial spatial) {
+    //    BillboardControl control = new BillboardControl();
+    //    control.alignment = this.alignment;
+    //    control.setSpatial(spatial);
+    //    return control;
+    //}
 
     @Override
     protected void controlUpdate(float tpf) {

jme3-core/src/main/java/com/jme3/scene/control/CameraControl.java

@@ -136,13 +136,14 @@ public class CameraControl extends AbstractControl {
         // nothing to do
     }
 
-    @Override
-    public Control cloneForSpatial(Spatial newSpatial) {
-        CameraControl control = new CameraControl(camera, controlDir);
-        control.setSpatial(newSpatial);
-        control.setEnabled(isEnabled());
-        return control;
-    }
+    // default implementation from AbstractControl is equivalent
+    //@Override
+    //public Control cloneForSpatial(Spatial newSpatial) {
+    //    CameraControl control = new CameraControl(camera, controlDir);
+    //    control.setSpatial(newSpatial);
+    //    control.setEnabled(isEnabled());
+    //    return control;
+    //}
     private static final String CONTROL_DIR_NAME = "controlDir";
     private static final String CAMERA_NAME = "camera";
     

jme3-core/src/main/java/com/jme3/scene/control/LightControl.java

@@ -167,13 +167,14 @@ public class LightControl extends AbstractControl {
         // nothing to do
     }
 
-    @Override
-    public Control cloneForSpatial(Spatial newSpatial) {
-        LightControl control = new LightControl(light, controlDir);
-        control.setSpatial(newSpatial);
-        control.setEnabled(isEnabled());
-        return control;
-    }
+    // default implementation from AbstractControl is equivalent
+    //@Override
+    //public Control cloneForSpatial(Spatial newSpatial) {
+    //    LightControl control = new LightControl(light, controlDir);
+    //    control.setSpatial(newSpatial);
+    //    control.setEnabled(isEnabled());
+    //    return control;
+    //}
     private static final String CONTROL_DIR_NAME = "controlDir";
     private static final String LIGHT_NAME = "light";
     

jme3-core/src/main/java/com/jme3/scene/control/UpdateControl.java

@@ -85,6 +85,7 @@ public class UpdateControl extends AbstractControl {
         
     }
 
+    @Override
     public Control cloneForSpatial(Spatial newSpatial) {
         UpdateControl control = new UpdateControl(); 
         control.setSpatial(newSpatial);