java.lang.NullPointerException
	at org.activiti.designer.features.MoveActivityFeature.moveBoundaryEvents(MoveActivityFeature.java:139)
	at org.activiti.designer.features.MoveActivityFeature.moveActivityChilds(MoveActivityFeature.java:118)
	at org.activiti.designer.features.MoveActivityFeature.postMoveShape(MoveActivityFeature.java:62)
	at org.eclipse.graphiti.features.impl.DefaultMoveShapeFeature.moveShape(DefaultMoveShapeFeature.java:67)
	at org.eclipse.graphiti.internal.command.MoveShapeFeatureCommandWithContext.execute(MoveShapeFeatureCommandWithContext.java:81)
	at org.eclipse.graphiti.internal.command.CommandContainer.execute(CommandContainer.java:81)
	at org.eclipse.graphiti.ui.internal.command.GefCommandWrapper.execute(GefCommandWrapper.java:51)
	at org.eclipse.graphiti.ui.internal.editor.EmfOnGefCommand.execute(EmfOnGefCommand.java:54)
	at org.eclipse.graphiti.internal.command.GFPreparableCommand2.doExecute(GFPreparableCommand2.java:37)
	at org.eclipse.emf.transaction.RecordingCommand.execute(RecordingCommand.java:135)
	at org.eclipse.emf.workspace.EMFCommandOperation.doExecute(EMFCommandOperation.java:119)
	at org.eclipse.emf.workspace.AbstractEMFOperation.execute(AbstractEMFOperation.java:150)
	at org.eclipse.core.commands.operations.DefaultOperationHistory.execute(DefaultOperationHistory.java:513)
	at org.eclipse.emf.workspace.impl.WorkspaceCommandStackImpl.doExecute(WorkspaceCommandStackImpl.java:208)
	at org.eclipse.emf.transaction.impl.AbstractTransactionalCommandStack.execute(AbstractTransactionalCommandStack.java:165)
	at org.eclipse.graphiti.ui.internal.editor.GFWorkspaceCommandStackImpl.execute(GFWorkspaceCommandStackImpl.java:83)
	at org.eclipse.graphiti.ui.internal.editor.GFCommandStack.execute(GFCommandStack.java:124)
	at org.eclipse.gef.tools.AbstractTool.executeCommand(AbstractTool.java:425)
	at org.eclipse.gef.tools.AbstractTool.executeCurrentCommand(AbstractTool.java:438)
	at org.eclipse.gef.tools.DragEditPartsTracker.performDrag(DragEditPartsTracker.java:496)
	at org.eclipse.gef.tools.DragEditPartsTracker.handleButtonUp(DragEditPartsTracker.java:351)
	at org.eclipse.gef.tools.AbstractTool.mouseMove(AbstractTool.java:1159)
	at org.eclipse.gef.tools.SelectionTool.mouseMove(SelectionTool.java:562)
	at org.eclipse.gef.EditDomain.mouseMove(EditDomain.java:287)
	at org.eclipse.gef.ui.parts.DomainEventDispatcher.dispatchMouseMoved(DomainEventDispatcher.java:365)
	at org.eclipse.draw2d.LightweightSystem$EventHandler.mouseMove(LightweightSystem.java:543)
	at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:212)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1276)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3554)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3179)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1022)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:916)
	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:86)
	at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:585)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:540)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:124)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.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:353)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:180)
	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:616)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:629)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:584)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1438)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1414)