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I see org.eclipse.swt.SWTException: on diagram refresh org.eclipse.swt.SWTException: Widget is disposed at org.eclipse.swt.SWT.error(SWT.java:4699) at org.eclipse.swt.SWT.error(SWT.java:4614) at org.eclipse.swt.SWT.error(SWT.java:4585) at org.eclipse.swt.widgets.Widget.error(Widget.java:451) at org.eclipse.swt.widgets.Widget.checkWidget(Widget.java:350) at org.eclipse.swt.widgets.Control.getBackground(Control.java:1181) at org.eclipse.draw2d.LightweightSystem$RootFigure.getBackgroundColor(LightweightSystem.java:302) at org.eclipse.draw2d.Figure.getBackgroundColor(Figure.java:583) at org.eclipse.draw2d.Figure.getBackgroundColor(Figure.java:583) at org.eclipse.draw2d.Figure.getBackgroundColor(Figure.java:583) at org.eclipse.draw2d.Figure.getBackgroundColor(Figure.java:583) at org.eclipse.draw2d.Figure.getBackgroundColor(Figure.java:583) at org.eclipse.draw2d.Figure.getBackgroundColor(Figure.java:583) at org.eclipse.sirius.diagram.ui.internal.edit.parts.DDiagramEditPart.configureBackground(DDiagramEditPart.java:256) at org.eclipse.sirius.diagram.ui.internal.edit.parts.DDiagramEditPart.refreshVisuals(DDiagramEditPart.java:118) at org.eclipse.gef.editparts.AbstractEditPart.refresh(AbstractEditPart.java:725) at org.eclipse.gef.editparts.AbstractGraphicalEditPart.refresh(AbstractGraphicalEditPart.java:644) at org.eclipse.gmf.runtime.diagram.ui.editparts.GraphicalEditPart.access$3(GraphicalEditPart.java:1) at org.eclipse.gmf.runtime.diagram.ui.editparts.GraphicalEditPart$3.run(GraphicalEditPart.java:861) at org.eclipse.emf.transaction.impl.TransactionalEditingDomainImpl.runExclusive(TransactionalEditingDomainImpl.java:328) at org.eclipse.gmf.runtime.diagram.ui.editparts.GraphicalEditPart.refresh(GraphicalEditPart.java:851) at org.eclipse.gmf.runtime.diagram.ui.commands.DeferredLayoutCommand$1.run(DeferredLayoutCommand.java:146) at org.eclipse.gmf.runtime.diagram.ui.util.EditPartUtil.synchronizeRunnableToMainThread(EditPartUtil.java:106) at org.eclipse.gmf.runtime.diagram.ui.commands.DeferredLayoutCommand.doExecuteWithResult(DeferredLayoutCommand.java:186) at org.eclipse.gmf.runtime.emf.commands.core.command.AbstractTransactionalCommand.doExecute(AbstractTransactionalCommand.java:247) at org.eclipse.emf.workspace.AbstractEMFOperation.execute(AbstractEMFOperation.java:150) at org.eclipse.gmf.runtime.diagram.ui.commands.ICommandProxy.execute(ICommandProxy.java:68) at org.eclipse.gef.commands.CompoundCommand.execute(CompoundCommand.java:129) at org.eclipse.sirius.diagram.ui.internal.refresh.layout.SiriusCanonicalLayoutCommand.executeLayoutDueToExternalChanges(SiriusCanonicalLayoutCommand.java:109) at org.eclipse.sirius.diagram.ui.internal.refresh.layout.SiriusCanonicalLayoutCommand.access$3(SiriusCanonicalLayoutCommand.java:106) at org.eclipse.sirius.diagram.ui.internal.refresh.layout.SiriusCanonicalLayoutCommand$1.run(SiriusCanonicalLayoutCommand.java:92) at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:40) at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:185) at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3919) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3550) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1173) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1062) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:155) at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:635) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:559) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:155) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:137) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:107) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:400) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:660) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:597) at org.eclipse.equinox.launcher.Main.run(Main.java:1468) at org.eclipse.equinox.launcher.Main.main(Main.java:1441)
Hi Lakshminarayana, Thanks for your bug report. Could help us to understand the issue ? We need some hints about the environment in which you got this stack. Did you try to validate your odesign file (right click > validate on the top level element or validation button in the top-right corner of the editor) ? What your current action when the error occured ?
Actually, I am trying to open a representation programmatically for a model dynamically created. I don't see the above exception with modified API provided here. https://www.eclipse.org/forums/index.php?t=msg&th=796127&goto=1409972&#msg_1409972
