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Created attachment 270780 [details] project to reproduce An exception occurs when moving a reflexive synch call from the lifeline to an execution: org.eclipse.core.commands.ExecutionException: While executing the operation, an exception occurred at org.eclipse.core.commands.operations.DefaultOperationHistory.execute(DefaultOperationHistory.java:496) at org.eclipse.sirius.diagram.ui.tools.internal.editor.DDiagramCommandStack.execute(DDiagramCommandStack.java:71) at org.eclipse.sirius.diagram.ui.tools.internal.editor.DDiagramCommandStack.execute(DDiagramCommandStack.java:52) at org.eclipse.gmf.runtime.diagram.ui.parts.DiagramCommandStack.execute(DiagramCommandStack.java:156) at org.eclipse.gef.tools.AbstractTool.executeCommand(AbstractTool.java:425) at org.eclipse.gef.tools.AbstractTool.executeCurrentCommand(AbstractTool.java:438) at org.eclipse.gmf.runtime.diagram.ui.tools.DragEditPartsTrackerEx.executeCurrentCommand(DragEditPartsTrackerEx.java:151) at org.eclipse.gef.tools.DragEditPartsTracker.performDrag(DragEditPartsTracker.java:538) at org.eclipse.gef.tools.DragEditPartsTracker.handleButtonUp(DragEditPartsTracker.java:393) at org.eclipse.sirius.diagram.ui.tools.internal.ui.SnapToAllDragEditPartsTracker.handleButtonUp(SnapToAllDragEditPartsTracker.java:110) at org.eclipse.gef.tools.AbstractTool.mouseUp(AbstractTool.java:1200) at org.eclipse.gef.tools.SelectionTool.mouseUp(SelectionTool.java:574) at org.eclipse.gef.EditDomain.mouseUp(EditDomain.java:301) at org.eclipse.gef.ui.parts.DomainEventDispatcher.dispatchMouseReleased(DomainEventDispatcher.java:380) at org.eclipse.draw2d.LightweightSystem$EventHandler.mouseUp(LightweightSystem.java:548) at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:221) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:86) at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4428) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1079) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4238) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3817) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1155) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1044) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:153) at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:680) at org.eclipse.ui.internal.Workbench$$Lambda$65/1756143301.run(Unknown Source) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:594) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:148) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:151) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:388) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:243) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:653) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:590) at org.eclipse.equinox.launcher.Main.run(Main.java:1499) Caused by: org.eclipse.emf.common.util.BasicEList$BasicIndexOutOfBoundsException: index=7, size=7 at org.eclipse.emf.common.util.BasicEList.remove(BasicEList.java:601) at org.eclipse.emf.ecore.change.impl.ListChangeImpl.process(ListChangeImpl.java:546) at org.eclipse.emf.ecore.change.impl.ListChangeImpl.apply(ListChangeImpl.java:476) at org.eclipse.emf.ecore.change.impl.FeatureChangeImpl.apply(FeatureChangeImpl.java:701) at org.eclipse.emf.ecore.change.impl.FeatureChangeImpl.getListValue(FeatureChangeImpl.java:479) at org.eclipse.emf.ecore.change.impl.FeatureChangeImpl.getValue(FeatureChangeImpl.java:431) at org.eclipse.emf.ecore.change.impl.ChangeDescriptionImpl.preApply(ChangeDescriptionImpl.java:824) at org.eclipse.emf.ecore.change.impl.ChangeDescriptionImpl.apply(ChangeDescriptionImpl.java:291) at org.eclipse.emf.transaction.util.CompositeChangeDescription.apply(CompositeChangeDescription.java:135) at org.eclipse.emf.transaction.impl.TransactionImpl.doRollback(TransactionImpl.java:570) at org.eclipse.emf.transaction.impl.TransactionImpl.rollback(TransactionImpl.java:547) at org.eclipse.emf.transaction.impl.AbstractTransactionalCommandStack.rollback(AbstractTransactionalCommandStack.java:79) at org.eclipse.emf.workspace.impl.WorkspaceCommandStackImpl.executeTriggers(WorkspaceCommandStackImpl.java:429) at org.eclipse.emf.transaction.impl.TransactionalEditingDomainImpl.precommit(TransactionalEditingDomainImpl.java:712) at org.eclipse.emf.transaction.impl.TransactionImpl.commit(TransactionImpl.java:414) at org.eclipse.emf.workspace.AbstractEMFOperation.execute(AbstractEMFOperation.java:155) at org.eclipse.sirius.diagram.ui.tools.internal.commands.WrappingCommandIgnoringAffectedFiles.execute(WrappingCommandIgnoringAffectedFiles.java:124) at org.eclipse.core.commands.operations.DefaultOperationHistory.execute(DefaultOperationHistory.java:488) ... 42 more Steps to reproduce: 1- import attached project 2- open the two sequence diagrams 1 and 2 3- Move the bottom right reflexive synch call of the last participant to the right execution upon another execution just above
Steps to reproduce more precise 1- import attached project 2- open the two sequence diagrams 1 and 2 3- on diagram 2 move the execution e25 on e12 Then the exception happens
