renderer = creator.getRenderer(creator.getConfiguration().iterator().next());
compositeRenderContext = ((CompositeRenderContext)creator.getConfiguration().iterator().next());
assertEquals(3, compositeRenderContext.getContexts().size());
map.getLayersInternal().remove(0);
creator.changed(listener.lastNotification);
assertEquals(2, creator.getLayers().size());
assertEquals(1, creator.getConfiguration().size());
renderer = creator.getRenderer(creator.getConfiguration().iterator().next());
compositeRenderContext = ((CompositeRenderContext)creator.getConfiguration().iterator().next());
assertEquals(2, compositeRenderContext.getContexts().size());