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  1. JDK
  2. JDK-8108029

Exception while adding Node to scene.content

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: P3
    • Resolution: Won't Fix
    • Affects Version/s: fx1.2
    • Fix Version/s: None
    • Component/s: javafx
    • Environment:

      Windows Vista 32 bit, Intel core 2 duo, JavaFX 1.2 (the latest from javafx.com and NetBeans .6.5.1)

      Description

      When I'm trying to add new obj to scene.content, I get an exception:
      init:
      deps-jar:
      compile:
      jar:
      standard-run:
      sceneContent -> SwingTextFieldTextSwingButtonText
      textObjSeq -> Text
      Text with title'sgsdgf' has been added.
      Exception in thread "AWT-EventQueue-1" java.lang.NullPointerException
              at com.sun.embeddedswing.EmbeddedEventQueue.moveToVisibleAndOnScreen(EmbeddedEventQueue.java:155)
              at com.sun.embeddedswing.EmbeddedEventQueue.beforeDispatch(EmbeddedEventQueue.java:376)
              at com.sun.embeddedswing.EmbeddedEventQueue.dispatchEvent(EmbeddedEventQueue.java:439)
              at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273)
              at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183)
              at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173)
              at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168)
              at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160)
              at java.awt.EventDispatchThread.run(EventDispatchThread.java:121)


      The code:
      package default;

      import javafx.stage.Stage;
      import javafx.scene.Scene;
      import javafx.scene.text.Text;
      import javafx.ext.swing.SwingTextField;
      import javafx.ext.swing.SwingButton;
      import javafx.scene.input.MouseEvent;
      import javafx.scene.Node;

      var textObjSeq : Text[] = [];

      var textBoxTitle : Text = Text{
           layoutX: 20
           layoutY: 20
           content: "Enter title"
      }

       var textBox : SwingTextField = SwingTextField{
          columns: 4
          layoutX: 20
          layoutY: 25
      }

      var button : SwingButton = SwingButton{
          layoutX: 85
          layoutY: 24
          text: "create new Text-type object"
          onMouseClicked:function(event : MouseEvent):Void{
              var title = textBox.text;
              if(title != null and title.trim().length() > 0){
                  addNewText(title);
              }
          }
      }

      function addNewText(title:String): Void{
          var yPos:Integer = 80 + 30*textObjSeq.size();
          var txt = Text{
              content: title
              layoutX: 20
              layoutY: yPos;
              onMouseClicked: function(event : MouseEvent){
                  println("textObjSeq before deleting element {textObjSeq}");
                  delete event.node as Text from textObjSeq;
                  delete event.node from sceneContent;
                  println("textObjSeq after deleting element {textObjSeq}");
              }
          }
          insert txt into textObjSeq;
          //insert txt into stage.scene.content; //the same thing happens
          insert txt into sceneContent;
          
          println("sceneContent -> {sceneContent}");
          println("textObjSeq -> {textObjSeq}");
          println("Text with title'{title}' has been added.");
      }

      var sceneContent : Node[] = [textBox, textBoxTitle, button];

      var stage : Stage = Stage {
          title: "Creating text"
          width: 400
          height: 400
          scene: Scene {
              content: bind sceneContent
          }
      }

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            Assignee:
            Unassigned Unassigned
            Reporter:
            duke J. Duke (Inactive)
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              Dates

              Created:
              Updated:
              Resolved:
              Imported: