ActivityMapper activityMapper = new GuvnorActivityMapper( clientFactory );
ActivityManager activityManager = new ActivityManager( activityMapper,
eventBus );
activityManager.setDisplay( perspectivesPanel );
GuvnorPlaceHistoryMapper historyMapper = GWT.create( GuvnorPlaceHistoryMapper.class );
PlaceHistoryHandler historyHandler = new PlaceHistoryHandler( historyMapper );
historyHandler.register( placeController,
eventBus,
defaultPlace );