Error (one-off) when creating new model (5.4.3)

[Xiaoqi]

Hello all,

Upgraded to Archi 5.4.3 recent days, no issues found, just this morning when I opened Archi (with coArchi 0.9.2 in Windows 11) and I click to creating new model, I got attached error dialog pop up.

Error message:
Cannot invoke "org.eclipse.gef.GraphicalViewer.getControl()" because the return value of "com.archimatetool.editor.diagram.AbstractDiagramEditor.getGreaphicalViewre()" is null.

After click OK, the new model is created and looks no strange of using.

While, I tried multiple times again for creating new models, but this error hasn't pop up again.

So far, I can keep working in Archi, however, would like to report to forum here in case this is something need to be noticed which due to the latest version? (p.s. it's first time I see this error message).

Thanks,
Xiaoqi

[Phil Beauvoir]

Hi Xiaoqi,

Attach the error trace in the error log if possible. This can be accessed in Archi by selecting the "About Archi" menu item. In the dialog box press the "Installation Details" button, then select the "Configuration" tab and press the "View Error Log" button.

Phil

[Xiaoqi]

Hi Phil,

Below I extract the detail from that timestamp:

Code Select Expand

!ENTRY org.eclipse.jface 4 2 2024-11-05 08:50:32.637
!MESSAGE Problems occurred when invoking code from plug-in: "org.eclipse.jface".
!STACK 0
java.lang.NullPointerException: Cannot invoke "org.eclipse.gef.GraphicalViewer.getControl()" because the return value of "com.archimatetool.editor.diagram.AbstractDiagramEditor.getGraphicalViewer()" is null
at com.archimatetool.editor.diagram.AbstractDiagramEditor.selectObjects(AbstractDiagramEditor.java:969)
at com.archimatetool.editor.diagram.ArchimateDiagramEditor.selectObjects(ArchimateDiagramEditor.java:155)
at com.archimatetool.editor.views.tree.TreeSelectionSynchroniser.selectionChanged(TreeSelectionSynchroniser.java:188)
at org.eclipse.jface.viewers.Viewer$1.run(Viewer.java:151)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:47)
at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:174)
at org.eclipse.jface.viewers.Viewer.fireSelectionChanged(Viewer.java:148)
at org.eclipse.jface.viewers.StructuredViewer.updateSelection(StructuredViewer.java:2132)
at org.eclipse.jface.viewers.ColumnViewer.updateSelection(ColumnViewer.java:1055)
at org.eclipse.jface.viewers.StructuredViewer.setSelection(StructuredViewer.java:1664)
at org.eclipse.jface.viewers.TreeViewer.setSelection(TreeViewer.java:1091)
at com.archimatetool.editor.views.tree.TreeModelView.propertyChange(TreeModelView.java:758)
at java.desktop/java.beans.PropertyChangeSupport.fire(Unknown Source)
at java.desktop/java.beans.PropertyChangeSupport.firePropertyChange(Unknown Source)
at com.archimatetool.editor.model.impl.EditorModelManager.firePropertyChange(EditorModelManager.java:755)
at com.archimatetool.editor.model.impl.EditorModelManager.registerModel(EditorModelManager.java:184)
at com.archimatetool.editor.model.impl.EditorModelManager.createNewModel(EditorModelManager.java:162)
at com.archimatetool.editor.actions.NewArchimateModelAction.run(NewArchimateModelAction.java:40)
at org.eclipse.jface.action.Action.runWithEvent(Action.java:474)
at org.eclipse.jface.commands.ActionHandler.execute(ActionHandler.java:124)
at org.eclipse.ui.internal.handlers.E4HandlerProxy.execute(E4HandlerProxy.java:98)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.base/java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:58)
at org.eclipse.e4.core.internal.di.InjectorImpl.invokeUsingClass(InjectorImpl.java:299)
at org.eclipse.e4.core.internal.di.InjectorImpl.invoke(InjectorImpl.java:233)
at org.eclipse.e4.core.contexts.ContextInjectionFactory.invoke(ContextInjectionFactory.java:174)
at org.eclipse.e4.core.commands.internal.HandlerServiceHandler.execute(HandlerServiceHandler.java:165)
at org.eclipse.core.commands.Command.executeWithChecks(Command.java:488)
at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:485)
at org.eclipse.e4.core.commands.internal.HandlerServiceImpl.executeHandler(HandlerServiceImpl.java:204)
at org.eclipse.e4.ui.workbench.renderers.swt.HandledContributionItem.executeItem(HandledContributionItem.java:444)
at org.eclipse.e4.ui.workbench.renderers.swt.AbstractContributionItem.handleWidgetSelection(AbstractContributionItem.java:442)
at org.eclipse.e4.ui.workbench.renderers.swt.AbstractContributionItem.lambda$2(AbstractContributionItem.java:464)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:91)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4285)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1160)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4083)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3673)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1151)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:339)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1042)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:152)
at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:639)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:339)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:546)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:173)
at com.archimatetool.editor.Application.start(Application.java:85)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:208)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:143)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:109)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:439)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:271)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.base/java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:668)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:605)
at org.eclipse.equinox.launcher.Main.run(Main.java:1481)

For your checking, thanks.
Xiaoqi

[Phil Beauvoir]

Thanks, Xiaoqi. Looks like some asynchronous issue. I'll put a null check guard in at that point for the next version.

Phil

[Xiaoqi]

Good to provide some hint, actually I haven't seen same error until now, one full day, along with my using Archi.