* @see org.eclipse.core.runtime.Plugins#start(org.osgi.framework.BundleContext)
*/
public void start(BundleContext context) throws Exception {
this.context = context;
plugin = this;
SafeRunner.run(new ExtensionRegistryRunnable(this.context) {
protected void runWithoutRegistry() throws Exception {
// If we don't have a registry, then register trivial namespace
Activator.this.context.registerService(Namespace.class,
new TrivialNamespace(TrivialNamespace.NAME), null);
// And create and register ContainerTypeDescription