NPE in Properties View when undoing a change that has been performed programatically
- Open
SimpleTrafficLightsExample
- Open TL-Architecture
Merge>Root State - Select
forwardBoth
transition - Apply “Check NoVal” in Properties View
- In the “Missing NoVal Check” dialog, select
mergeInButtonA
andmergeInButtonB
- Observe that the guard condition has been extended
- CTRL+Z (undo) leads to below stack trace, presumably because the change has not been issued by an editing action, but programatically
- Hint: in
at org.fortiss.tooling.kernel.ui.util.UndoRedoImpl.setTextAndPos(UndoRedoImpl.java:158)
, argumentx
isnull
(editor
is non-null
)
java.lang.NullPointerException
at org.fortiss.tooling.kernel.ui.util.UndoRedoImpl.setTextAndPos(UndoRedoImpl.java:158)
at org.fortiss.tooling.kernel.ui.util.UndoRedoImpl.undo(UndoRedoImpl.java:222)
at org.fortiss.tooling.kernel.ui.util.UndoRedoImpl.keyReleased(UndoRedoImpl.java:186)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:174)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1057)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1081)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1066)
at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1108)
at org.eclipse.swt.widgets.Text.sendKeyEvent(Text.java:1726)
at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1104)
at org.eclipse.swt.widgets.Widget.wmKeyUp(Widget.java:1927)
at org.eclipse.swt.widgets.Control.WM_KEYUP(Control.java:4979)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:4644)
at org.eclipse.swt.widgets.Text.windowProc(Text.java:2597)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:4977)
at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method)
at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:2549)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3757)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1113)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:997)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:140)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:611)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:567)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
at org.fortiss.af3.rcapplication.AF3Application.start(AF3Application.java:48)
at org.eclipse.equinox.internal.apEclipseAppHandle.run(EclipseAppHandle.java:196)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:354)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:181)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:636)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:591)
at org.eclipse.equinox.launcher.Main.run(Main.java:1450)
at org.eclipse.equinox.launcher.Main.main(Main.java:1426)
(from redmine: issue id 2159, created on 2014-11-19, closed on 2014-12-05)