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  1. JDK
  2. JDK-8226283

WinWindow.notifyMoving NPE when restoring window size

    Details

    • Type: Bug
    • Status: Closed
    • Priority: P4
    • Resolution: Duplicate
    • Affects Version/s: openjfx11, openjfx12
    • Fix Version/s: None
    • Component/s: javafx
    • Subcomponent:
    • CPU:
      x86_64
    • OS:
      windows_10

      Description

      ADDITIONAL SYSTEM INFORMATION :
      System is Windows 10.
      OpenJDK 64-Bit Server VM Corretto-11.0.3.7.1 (build 11.0.3+7-LTS, mixed mode)
      JavaFX 12.0.1

      A DESCRIPTION OF THE PROBLEM :
      NPE happens when restoring Java FX window

      STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
      open the Java FX application
      save window size + position on close using
      stage.getX()
      stage.getY()
      stage.getWidth()
      stage.getHeight()
      restart and apply the prev values
      stage.setX(x);
      stage.setY(y);
      stage.setWidth(w);
      stage.setHeight(h);
      When calling stage.show() afterwards I MAY get the following NPE. I can avoid it by making the
      x value smaller. Values like these will cause the NPE:
      X = 3112.0
      Y = 941.0
      W = 1932.0
      H = 1165.0

      System has 3 monitors.
      Left: 1920x1200 in portrait
      center: 3840x2160
      right: 1920x1200 in portrait

      Windows scaling is at 100% default.

      Same NPE happens on other users' 4-monitor systems all in landscape (2x2 layout)

      `javafx.fxml.LoadException:
      /C:/java/viewer/fxml/viewer.fxml
      at javafx.fxml/javafx.fxml.FXMLLoader.constructLoadException(FXMLLoader.java:2625)
      at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2603)
      at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2466)
      at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3237)
      at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3194)
      at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3163)
      at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3136)
      at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3113)
      at javafx.fxml/javafx.fxml.FXMLLoader.load(FXMLLoader.java:3106)
      at viewer.Main.start(Main.java:68)
      at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$9(LauncherImpl.java:846)
      at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runAndWait$12(PlatformImpl.java:455)
      at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$10(PlatformImpl.java:428)
      at java.base/java.security.AccessController.doPrivileged(Native Method)
      at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$11(PlatformImpl.java:427)
      at javafx.graphics/com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:96)
      at javafx.graphics/com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
      at javafx.graphics/com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(WinApplication.java:174)
      at java.base/java.lang.Thread.run(Thread.java:834)

      Caused by: java.lang.NullPointerException
      at javafx.graphics/com.sun.glass.ui.win.WinWindow.notifyMoving(WinWindow.java:205)
      at javafx.graphics/com.sun.glass.ui.win.WinWindow.setBounds(WinWindow.java:129)
      at javafx.graphics/com.sun.javafx.tk.quantum.WindowStage.setBounds(WindowStage.java:336)
      at javafx.graphics/javafx.stage.Window$TKBoundsConfigurator.apply(Window.java:1550)
      at javafx.graphics/javafx.stage.Window.applyBounds(Window.java:1412)
      at javafx.graphics/javafx.stage.Window$12.invalidated(Window.java:1117)
      at javafx.base/javafx.beans.property.BooleanPropertyBase.markInvalid(BooleanPropertyBase.java:110)
      at javafx.base/javafx.beans.property.BooleanPropertyBase.set(BooleanPropertyBase.java:145)
      at javafx.graphics/javafx.stage.Window.setShowing(Window.java:1174)
      at javafx.graphics/javafx.stage.Window.show(Window.java:1189)
      at javafx.graphics/javafx.stage.Stage.show(Stage.java:273)
      at viewer.ViewSwitcher.applyAndShowStage(ViewSwitcher.java:110)
      at viewer.GuiController.initialize(GuiController.java:924)
      at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2573)
      ... 17 more
      Main: loaded
      Jun 04, 2019 5:14:17 PM viewer.Main start
      SEVERE: null
      java.lang.NullPointerException: Root cannot be null
      at javafx.graphics/javafx.scene.Scene.(Scene.java:345)
      at javafx.graphics/javafx.scene.Scene.(Scene.java:207)
      at viewer.Main.start(Main.java:73)
      at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$9(LauncherImpl.java:846)
      at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runAndWait$12(PlatformImpl.java:455)
      at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$10(PlatformImpl.java:428)
      at java.base/java.security.AccessController.doPrivileged(Native Method)
      at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$11(PlatformImpl.java:427)
      at javafx.graphics/com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:96)
      at javafx.graphics/com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
      at javafx.graphics/com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(WinApplication.java:174)
      at java.base/java.lang.Thread.run(Thread.java:834)`


      ---------- BEGIN SOURCE ----------
      https://github.com/javafxports/openjdk-jfx/files/3298511/viewer.zip
      ---------- END SOURCE ----------

      FREQUENCY : always


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              • Assignee:
                kcr Kevin Rushforth
                Reporter:
                webbuggrp Webbug Group
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                • Created:
                  Updated:
                  Resolved: