Issue with a class extending EventHandler MouseEvent

Question

Hello all,
I originally had a nested class that was a used for mouseEvents. I wanted to make this it's own class, so I can call it directly into other class objects I have made, but for some reason it isn't working and I'm getting an eror
here is the code:
public class MouseHandler implements EventHandler<MouseEvent>
    private double sceneAnchorX;
    private double sceneAnchorY;
    private double anchorAngle;
    private Parent parent;
    private final Node nodeToMove ;
   MouseHandler(Node nodeToMove)
       this.nodeToMove = nodeToMove ;
    @Override
    public void handle(MouseEvent event)
      if (event.getEventType() == MouseEvent.MOUSE_PRESSED)
        sceneAnchorX = event.getSceneX();
        sceneAnchorY = event.getSceneY();
        anchorAngle = nodeToMove.getRotate();
        event.consume();
      else if (event.getEventType() == MouseEvent.MOUSE_DRAGGED)
          if(event.isControlDown())
              nodeToMove.setRotationAxis(new Point3D(sceneAnchorY,event.getSceneX(),0));
              nodeToMove.setRotate(anchorAngle + sceneAnchorX -  event.getSceneX());
              sceneAnchorX = event.getSceneX();
              sceneAnchorY = event.getSceneY();
              anchorAngle = nodeToMove.getRotate();
              event.consume();
          else
            double x = event.getSceneX();
            double y = event.getSceneY();
            nodeToMove.setTranslateX(nodeToMove.getTranslateX() + x - sceneAnchorX);
            nodeToMove.setTranslateY(nodeToMove.getTranslateY() + y - sceneAnchorY);
            sceneAnchorX = x;
            sceneAnchorY = y;
            event.consume();
      else if(event.getEventType() == MouseEvent.MOUSE_CLICKED)
        //  nodeToMove.setFocusTraversable(true);
           nodeToMove.requestFocus();
           event.consume();
                     nodeToMove.setOnKeyPressed((KeyEvent)
->{
     if(KeyCode.UP.equals(KeyEvent.getCode()))
         nodeToMove.setScaleX(nodeToMove.getScaleX()+ .1);
         nodeToMove.setScaleY(nodeToMove.getScaleY()+ .1);
         nodeToMove.setScaleZ(nodeToMove.getScaleZ()+ .1);
         System.out.println("kaw");
         KeyEvent.consume();
     if(KeyCode.DOWN.equals(KeyEvent.getCode()))
         if(nodeToMove.getScaleX() > 0.15)
         nodeToMove.setScaleX(nodeToMove.getScaleX()- .1);
         nodeToMove.setScaleY(nodeToMove.getScaleY()- .1);
         nodeToMove.setScaleZ(nodeToMove.getScaleZ()- .1);
         System.out.println(nodeToMove.getScaleX());
         KeyEvent.consume();
     nodeToMove.setOnScroll((ScrollEvent)
             ->{
         if(nodeToMove.isFocused())
                    if(ScrollEvent.getDeltaY() > 0)
                        nodeToMove.setTranslateZ(10+nodeToMove.getTranslateZ());
                    else
                        nodeToMove.setTranslateZ(-10+nodeToMove.getTranslateZ());
       ScrollEvent.consume();
}This is the class where I call it.
import javafx.scene.input.MouseEvent;
import javafx.scene.layout.Pane;
import javafx.scene.paint.Color;
import javafx.scene.paint.PhongMaterial;
import javafx.scene.shape.Box;
* @author Konrad
public class Display extends Pane
    Box b;
    PhongMaterial pm = new PhongMaterial(Color.GRAY);
    public Display(Double x, Double y,Double width, Double height)
         super();
         b = new Box(width, height,10);
         setPrefSize(width,height);
         relocate(x, y);
         b.setMaterial(pm); 
         b.addEventFilter(MouseEvent.ANY, new MouseHandler(this));
         getChildren().add(b);
}There is no red dot stating the class doesn't exist, or anything is wrong, but when I run it I get an error.
here is the error:
C:\Users\Konrad\Documents\NetBeansProjects\3D\src\3d\Display.java:29: error: cannot find symbol
         b.addEventFilter(MouseEvent.ANY, new MouseHandler(this));
  symbol:   class MouseHandler
  location: class DisplayThis is another class from the one that it was originally "nested" in(sorry if I'm not using correct terms). The other class, as well as this, produce the same error(this one was just smaller and eaiser to use as an example).
The code is exactly the same.
Originally I thought that the MouseEvent class wasn't an FX class, so I switched it and thought it worked, tried it on the Display class it didn't, tried it on the first one and yeah still didn't, so not too sure what happened there :(.
Thanks,
~KZ
Edited by: KonradZuse on Jun 7, 2013 12:15 PM
Edited by: KonradZuse on Jun 7, 2013 12:38 PM
Edited by: KonradZuse on Jun 7, 2013 12:39 PM

Answer 1

Last time that was the issue I was having for a certain case; however this seems to be different, here is the list of imports for each class.
MouseHandler:
import javafx.event.EventHandler;
import javafx.geometry.Point3D;
import javafx.scene.Node;
import javafx.scene.Parent;
import javafx.scene.input.KeyCode;
import javafx.scene.input.MouseEvent;Display:
import javafx.scene.input.MouseEvent;
import javafx.scene.layout.Pane;
import javafx.scene.paint.Color;
import javafx.scene.paint.PhongMaterial;
import javafx.scene.shape.Box;draw:
import java.io.File;
import java.sql.*;
import javafx.application.Application;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.event.ActionEvent;
import javafx.geometry.Rectangle2D;
import javafx.scene.Group;
import javafx.scene.PerspectiveCamera;
import javafx.scene.PointLight;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.control.ListCell;
import javafx.scene.control.ListView;
import javafx.scene.control.Menu;
import javafx.scene.control.MenuBar;
import javafx.scene.control.MenuItem;
import javafx.scene.control.TextField;
import javafx.scene.input.ClipboardContent;
import javafx.scene.input.DataFormat;
import javafx.scene.input.DragEvent;
import javafx.scene.input.Dragboard;
import javafx.scene.input.MouseEvent;
import javafx.scene.input.TransferMode;
import javafx.scene.layout.GridPane;
import javafx.scene.layout.Pane;
import javafx.scene.paint.Color;
import javafx.scene.paint.PhongMaterial;
import javafx.scene.shape.TriangleMesh;
import javafx.stage.FileChooser;
import javafx.stage.FileChooser.ExtensionFilter;
import javafx.stage.Screen;
import javafx.stage.Stage;
import javafx.stage.StageStyle;
import jfxtras.labs.scene.control.window.Window;
import org.controlsfx.dialogs.Action;
import org.controlsfx.dialogs.Dialog;Edited by: KonradZuse on Jun 7, 2013 2:27 PM
Oddly enough I tried it again and it worked once, but the second time it error-ed out again, so I'm not sure what the deal is.
then I ended up getting it to work again in the draw class only but when I tried to use the event I get this error.
J a v a M e s s a g e : 3 d / M o u s e H a n d l e r
java.lang.NoClassDefFoundError: 3d/MouseHandler
     at shelflogic3d.draw.lambda$5(draw.java:331)
     at shelflogic3d.draw$$Lambda$16.handle(Unknown Source)
     at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:86)
     at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
     at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
     at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
     at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
     at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
     at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
     at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
     at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
     at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
     at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
     at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:54)
     at javafx.event.Event.fireEvent(Event.java:202)
     at javafx.scene.Scene$DnDGesture.fireEvent(Scene.java:2824)
     at javafx.scene.Scene$DnDGesture.processTargetDrop(Scene.java:3028)
     at javafx.scene.Scene$DnDGesture.access$6500(Scene.java:2800)
     at javafx.scene.Scene$DropTargetListener.drop(Scene.java:2771)
     at com.sun.javafx.tk.quantum.GlassSceneDnDEventHandler$3.run(GlassSceneDnDEventHandler.java:85)
     at com.sun.javafx.tk.quantum.GlassSceneDnDEventHandler$3.run(GlassSceneDnDEventHandler.java:81)
     at java.security.AccessController.doPrivileged(Native Method)
     at com.sun.javafx.tk.quantum.GlassSceneDnDEventHandler.handleDragDrop(GlassSceneDnDEventHandler.java:81)
     at com.sun.javafx.tk.quantum.GlassViewEventHandler.handleDragDrop(GlassViewEventHandler.java:595)
     at com.sun.glass.ui.View.handleDragDrop(View.java:664)
     at com.sun.glass.ui.View.notifyDragDrop(View.java:977)
     at com.sun.glass.ui.win.WinDnDClipboard.push(Native Method)
     at com.sun.glass.ui.win.WinSystemClipboard.pushToSystem(WinSystemClipboard.java:234)
     at com.sun.glass.ui.SystemClipboard.flush(SystemClipboard.java:51)
     at com.sun.glass.ui.ClipboardAssistance.flush(ClipboardAssistance.java:59)
     at com.sun.javafx.tk.quantum.QuantumClipboard.flush(QuantumClipboard.java:260)
     at com.sun.javafx.tk.quantum.QuantumToolkit.startDrag(QuantumToolkit.java:1277)
     at javafx.scene.Scene$DnDGesture.dragDetectedProcessed(Scene.java:2844)
     at javafx.scene.Scene$DnDGesture.process(Scene.java:2905)
     at javafx.scene.Scene$DnDGesture.access$8500(Scene.java:2800)
     at javafx.scene.Scene$MouseHandler.process(Scene.java:3564)
     at javafx.scene.Scene$MouseHandler.process(Scene.java:3379)
     at javafx.scene.Scene$MouseHandler.access$1800(Scene.java:3331)
     at javafx.scene.Scene.impl_processMouseEvent(Scene.java:1612)
     at javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2399)
     at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:312)
     at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:237)
     at java.security.AccessController.doPrivileged(Native Method)
     at com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:354)
     at com.sun.glass.ui.View.handleMouseEvent(View.java:514)
     at com.sun.glass.ui.View.notifyMouse(View.java:877)
     at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
     at com.sun.glass.ui.win.WinApplication.access$300(WinApplication.java:39)
     at com.sun.glass.ui.win.WinApplication$3$1.run(WinApplication.java:101)
     at java.lang.Thread.run(Thread.java:724)
Caused by: java.lang.ClassNotFoundException: shelflogic3d.MouseHandler
     at java.net.URLClassLoader$1.run(URLClassLoader.java:365)
     at java.net.URLClassLoader$1.run(URLClassLoader.java:354)
     at java.security.AccessController.doPrivileged(Native Method)
     at java.net.URLClassLoader.findClass(URLClassLoader.java:353)
     at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
     at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
     ... 50 more
Exception in thread "JavaFX Application Thread" E..........After the E comes a bunch of random stuff with drag and drop and such (since I'm dragging an item, and then creating it and giving it the event in question).
Line 331 is                      b.addEventHandler(MouseEvent.ANY, new MouseHandler(b));