Cannot add Sampling pattern

Trying to place a sampling pattern on the pallet generates a java.lang.NullPointerException.

The log message is:
Problems occurred when invoking code from plug-in: "org.eclipse.jface".

The stack trace is:
java.lang.NullPointerException
at org.apache.camel.model.SamplingDefinition.getLabel(SamplingDefinition.java:69)
at com.fusesource.rider.model.AbstractNode.getDisplayText(AbstractNode.java:510)
at com.fusesource.rider.editor.parts.GenericEditPart.refreshVisuals(GenericEditPart.java:41)
at org.eclipse.gef.editparts.AbstractEditPart.refresh(AbstractEditPart.java:717)
at org.eclipse.gef.editparts.AbstractGraphicalEditPart.refresh(AbstractGraphicalEditPart.java:633)
at org.eclipse.gef.editparts.AbstractEditPart.addNotify(AbstractEditPart.java:252)
at org.eclipse.gef.editparts.AbstractGraphicalEditPart.addNotify(AbstractGraphicalEditPart.java:223)
at org.eclipse.gef.editparts.AbstractEditPart.addChild(AbstractEditPart.java:211)
at org.eclipse.gef.editparts.AbstractEditPart.refreshChildren(AbstractEditPart.java:771)
at com.fusesource.rider.editor.parts.ContainerEditPart.propertyChange(ContainerEditPart.java:33)
at java.beans.PropertyChangeSupport.firePropertyChange(Unknown Source)
at java.beans.PropertyChangeSupport.firePropertyChange(Unknown Source)
at com.fusesource.rider.model.AbstractNode.fireChildAdded(AbstractNode.java:355)
at com.fusesource.rider.model.Container.addChild(Container.java:127)
at com.fusesource.rider.model.Container.addChild(Container.java:96)
at com.fusesource.rider.model.Container.addChild(Container.java:84)
at com.fusesource.rider.editor.commands.AbstractNodeCreateCommand.redo(AbstractNodeCreateCommand.java:60)
at com.fusesource.rider.editor.commands.AbstractNodeCreateCommand.execute(AbstractNodeCreateCommand.java:53)
at org.eclipse.gef.commands.CommandStack.execute(CommandStack.java:197)
at org.eclipse.gef.dnd.AbstractTransferDropTargetListener.handleDrop(AbstractTransferDropTargetListener.java:339)
at org.eclipse.gef.dnd.TemplateTransferDropTargetListener.handleDrop(TemplateTransferDropTargetListener.java:112)
at org.eclipse.gef.dnd.AbstractTransferDropTargetListener.drop(AbstractTransferDropTargetListener.java:183)
at org.eclipse.jface.util.DelegatingDropAdapter$3.run(DelegatingDropAdapter.java:211)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:49)
at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175)
at org.eclipse.jface.util.DelegatingDropAdapter.drop(DelegatingDropAdapter.java:209)
at org.eclipse.swt.dnd.DNDListener.handleEvent(DNDListener.java:90)
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.Widget.sendEvent(Widget.java:1077)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1062)
at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:774)
at org.eclipse.swt.dnd.DropTarget.Drop(DropTarget.java:456)
at org.eclipse.swt.dnd.DropTarget$3.method6(DropTarget.java:258)
at org.eclipse.swt.internal.ole.win32.COMObject.callback6(COMObject.java:119)
at org.eclipse.swt.internal.ole.win32.COM.DoDragDrop(Native Method)
at org.eclipse.swt.dnd.DragSource.drag(DragSource.java:363)
at org.eclipse.swt.dnd.DragSource.access$0(DragSource.java:289)
at org.eclipse.swt.dnd.DragSource$1.handleEvent(DragSource.java:172)
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)

The session data is:
eclipse.buildId=M20100909-0800
java.version=1.6.0_22
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=en_US
Framework arguments: -product org.eclipse.epp.package.jee.product
Command-line arguments: -os win32 -ws win32 -arch x86 -product org.eclipse.epp.package.jee.product