public ComponentDiscovererManager getComponentDiscovererManager()
{
if ( componentDiscovererManager == null )
{
componentDiscovererManager = new DefaultComponentDiscovererManager();
((DefaultComponentDiscovererManager)componentDiscovererManager).addComponentDiscoverer( new DefaultComponentDiscoverer() );
((DefaultComponentDiscovererManager)componentDiscovererManager).addComponentDiscoverer( new PlexusXmlComponentDiscoverer() );
}