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  1. JDK
  2. JDK-8121972

[SWT] FXCanvas: Exception printed and null pointers when running older versions of SWT

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    • Icon: Bug Bug
    • Resolution: Fixed
    • Icon: P3 P3
    • 8
    • 8
    • javafx
    • None

    • OS X

      Run any FXCanvas example and you will see the following:

      java.lang.NoSuchMethodException: org.eclipse.swt.internal.cocoa.NSScreen.backingScaleFactor()
      at java.lang.Class.getDeclaredMethod(Class.java:2109)
      at javafx.embed.swt.FXCanvas.<clinit>(FXCanvas.java:227)
      at bugs.Main.main(Main.java:30)
      2013-11-18 09:40:41.700 java[80115:1007] *** WARNING: Method userSpaceScaleFactor in class NSWindow is deprecated on 10.7 and later. It should not be used in new applications. Use convertRectToBacking: instead.
      2013-11-18 09:40:42.151 java[80115:1007] *** WARNING: Method userSpaceScaleFactor in class NSView is deprecated on 10.7 and later. It should not be used in new applications. Use convertRectToBacking: instead.
      java.lang.NullPointerException
      at javafx.embed.swt.FXCanvas.getScaleFactor(FXCanvas.java:553)
      at javafx.embed.swt.FXCanvas.paintControl(FXCanvas.java:538)
      at javafx.embed.swt.FXCanvas.access$11(FXCanvas.java:484)
      at javafx.embed.swt.FXCanvas$5.paintControl(FXCanvas.java:381)
      at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:229)
      at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
      at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4128)
      at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1457)
      at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1480)
      at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1465)
      at org.eclipse.swt.widgets.Control.drawWidget(Control.java:1244)
      at org.eclipse.swt.widgets.Canvas.drawWidget(Canvas.java:163)
      at org.eclipse.swt.widgets.Widget.drawRect(Widget.java:740)
      at org.eclipse.swt.widgets.Canvas.drawRect(Canvas.java:158)
      at org.eclipse.swt.widgets.Display.windowProc(Display.java:5449)
      at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method)
      at org.eclipse.swt.widgets.Display.applicationNextEventMatchingMask(Display.java:4879)
      at org.eclipse.swt.widgets.Display.applicationProc(Display.java:5226)
      at org.eclipse.swt.internal.cocoa.OS.objc_msgSend(Native Method)
      at org.eclipse.swt.internal.cocoa.NSApplication.nextEventMatchingMask(NSApplication.java:94)
      at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3607)
      at bugs.Main.main(Main.java:79)
      java.lang.NullPointerException
      at javafx.embed.swt.FXCanvas.getScaleFactor(FXCanvas.java:553)
      at javafx.embed.swt.FXCanvas.paintControl(FXCanvas.java:538)
      at javafx.embed.swt.FXCanvas.access$11(FXCanvas.java:484)
      at javafx.embed.swt.FXCanvas$5.paintControl(FXCanvas.java:381)
      at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:229)
      at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
      at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4128)
      at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1457)
      at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1480)
      at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1465)
      at org.eclipse.swt.widgets.Control.drawWidget(Control.java:1244)
      at org.eclipse.swt.widgets.Canvas.drawWidget(Canvas.java:163)
      at org.eclipse.swt.widgets.Widget.drawRect(Widget.java:740)
      at org.eclipse.swt.widgets.Canvas.drawRect(Canvas.java:158)
      at org.eclipse.swt.widgets.Display.windowProc(Display.java:5449)
      at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method)
      at org.eclipse.swt.widgets.Display.applicationNextEventMatchingMask(Display.java:4879)
      at org.eclipse.swt.widgets.Display.applicationProc(Display.java:5226)
      at org.eclipse.swt.internal.cocoa.OS.objc_msgSend(Native Method)
      at org.eclipse.swt.internal.cocoa.NSApplication.nextEventMatchingMask(NSApplication.java:94)
      at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3607)
      at bugs.Main.main(Main.java:79)
      java.lang.NullPointerException
      at javafx.embed.swt.FXCanvas.getScaleFactor(FXCanvas.java:553)
      at javafx.embed.swt.FXCanvas.paintControl(FXCanvas.java:538)
      at javafx.embed.swt.FXCanvas.access$11(FXCanvas.java:484)
      at javafx.embed.swt.FXCanvas$5.paintControl(FXCanvas.java:381)
      at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:229)
      at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
      at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4128)
      at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1457)
      at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1480)
      at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1465)
      at org.eclipse.swt.widgets.Control.drawWidget(Control.java:1244)
      at org.eclipse.swt.widgets.Canvas.drawWidget(Canvas.java:163)
      at org.eclipse.swt.widgets.Widget.drawRect(Widget.java:740)
      at org.eclipse.swt.widgets.Canvas.drawRect(Canvas.java:158)
      at org.eclipse.swt.widgets.Display.windowProc(Display.java:5449)
      at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method)
      at org.eclipse.swt.widgets.Display.applicationNextEventMatchingMask(Display.java:4879)
      at org.eclipse.swt.widgets.Display.applicationProc(Display.java:5226)
      at org.eclipse.swt.internal.cocoa.OS.objc_msgSend(Native Method)
      at org.eclipse.swt.internal.cocoa.NSApplication.nextEventMatchingMask(NSApplication.java:94)
      at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3607)
      at bugs.Main.main(Main.java:79)
      java.lang.NullPointerException
      at javafx.embed.swt.FXCanvas.getScaleFactor(FXCanvas.java:553)
      at javafx.embed.swt.FXCanvas.paintControl(FXCanvas.java:538)
      at javafx.embed.swt.FXCanvas.access$11(FXCanvas.java:484)
      at javafx.embed.swt.FXCanvas$5.paintControl(FXCanvas.java:381)
      at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:229)
      at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
      at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4128)
      at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1457)
      at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1480)
      at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1465)
      at org.eclipse.swt.widgets.Control.drawWidget(Control.java:1244)
      at org.eclipse.swt.widgets.Canvas.drawWidget(Canvas.java:163)
      at org.eclipse.swt.widgets.Widget.drawRect(Widget.java:740)
      at org.eclipse.swt.widgets.Canvas.drawRect(Canvas.java:158)
      at org.eclipse.swt.widgets.Display.windowProc(Display.java:5449)
      at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method)
      at org.eclipse.swt.widgets.Display.applicationNextEventMatchingMask(Display.java:4879)
      at org.eclipse.swt.widgets.Display.applicationProc(Display.java:5226)
      at org.eclipse.swt.internal.cocoa.OS.objc_msgSend(Native Method)
      at org.eclipse.swt.internal.cocoa.NSApplication.nextEventMatchingMask(NSApplication.java:94)
      at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3607)
      at bugs.Main.main(Main.java:79)

        1. FXCanvasApp.java
          11 kB

            snorthov Steve Northover (Inactive)
            snorthov Steve Northover (Inactive)
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              Created:
              Updated:
              Resolved:
              Imported: