Cannot save route with a stop

Stack Trace:
java.lang.UnsupportedOperationException
at java.util.AbstractList.add(Unknown Source)
at java.util.AbstractList.add(Unknown Source)
at org.apache.camel.model.ProcessorDefinition.addOutput(ProcessorDefinition.java:159)
at com.fusesource.rider.model.AbstractNode.addCamelOutput(AbstractNode.java:790)
at com.fusesource.rider.model.AbstractNode.saveChildrenToCamelDefinitions(AbstractNode.java:812)
at com.fusesource.rider.model.AbstractNode.saveChildrenToCamelDefinitions(AbstractNode.java:819)
at com.fusesource.rider.model.Route.createRouteDefinition(Route.java:117)
at com.fusesource.rider.model.Container.createRouteDefinitions(Container.java:191)
at com.fusesource.rider.editor.io.XmlContainerMarshaller.updateText(XmlContainerMarshaller.java:93)
at com.fusesource.rider.editor.editor.RiderDesignEditor.updateEditorText(RiderDesignEditor.java:638)
at com.fusesource.rider.editor.editor.RiderEditor$3.run(RiderEditor.java:253)
at com.fusesource.rider.editor.editor.RiderDesignEditor.runIfDiagramModified(RiderDesignEditor.java:643)
at com.fusesource.rider.editor.editor.RiderEditor.updatedDesignPage(RiderEditor.java:244)
at com.fusesource.rider.editor.editor.RiderDesignEditor.saveModelToFile(RiderDesignEditor.java:621)
at com.fusesource.rider.editor.editor.RiderDesignEditor.doSave(RiderDesignEditor.java:475)
at com.fusesource.rider.editor.editor.RiderEditor.doSave(RiderEditor.java:166)
at org.eclipse.ui.internal.SaveableHelper$2.run(SaveableHelper.java:151)
at org.eclipse.ui.internal.SaveableHelper$5.run(SaveableHelper.java:277)
at org.eclipse.jface.operation.ModalContext.runInCurrentThread(ModalContext.java:464)
at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:372)
at org.eclipse.jface.window.ApplicationWindow$1.run(ApplicationWindow.java:759)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
at org.eclipse.jface.window.ApplicationWindow.run(ApplicationWindow.java:756)
at org.eclipse.ui.internal.WorkbenchWindow.run(WorkbenchWindow.java:2600)
at org.eclipse.ui.internal.SaveableHelper.runProgressMonitorOperation(SaveableHelper.java:285)
at org.eclipse.ui.internal.SaveableHelper.runProgressMonitorOperation(SaveableHelper.java:264)
at org.eclipse.ui.internal.SaveableHelper.savePart(SaveableHelper.java:156)
at org.eclipse.ui.internal.EditorManager.savePart(EditorManager.java:1369)
at org.eclipse.ui.internal.WorkbenchPage.savePart(WorkbenchPage.java:3334)
at org.eclipse.ui.internal.WorkbenchPage.saveEditor(WorkbenchPage.java:3347)
at org.eclipse.ui.internal.SaveAction.run(SaveAction.java:76)
at org.eclipse.jface.action.Action.runWithEvent(Action.java:498)
at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:584)
at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:501)
at org.eclipse.jface.action.ActionContributionItem$6.handleEvent(ActionContributionItem.java:452)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4066)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3657)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2640)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2604)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2438)
at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:671)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:664)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:115)
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:369)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
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:619)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:574)
at org.eclipse.equinox.launcher.Main.run(Main.java:1407)