java.lang.IllegalStateException: A reverse mapping function must be specified to support this List operation
	at ca.odell.glazedlists.FunctionList.reverse(FunctionList.java:158)
	at ca.odell.glazedlists.FunctionList.set(FunctionList.java:306)
	at ca.odell.glazedlists.TransformedList.set(TransformedList.java:138)
	at ca.odell.glazedlists.TransformedList.set(TransformedList.java:138)
	at ca.odell.glazedlists.UniqueList.set(UniqueList.java:204)
	at ca.odell.glazedlists.TransformedList.set(TransformedList.java:138)
	at ca.odell.glazedlists.swt.CheckableWrapperList.set(TableCheckFilterList.java:351)
	at ca.odell.glazedlists.swt.CheckableWrapperList.set(TableCheckFilterList.java:325)
	at ca.odell.glazedlists.TransformedList.set(TransformedList.java:138)
	at ca.odell.glazedlists.swt.TableCheckFilterList.updateItemChecked(TableCheckFilterList.java:265)
	at ca.odell.glazedlists.swt.TableCheckFilterList.widgetSelected(TableCheckFilterList.java:227)
	at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:240)
	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:4165)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3754)
	at com.partner4media.tc.gui.MainWindow.<init>(MainWindow.java:84)
	at com.partner4media.tc.Main.runClient(Main.java:66)
	at com.partner4media.tc.Main.main(Main.java:35)