MetaDataRegistry registry = null;
try {
registry = (MetaDataRegistry) this.manager.lookup(MetaDataRegistry.ROLE);
if (!registry.isRegistered(namespaceUri)) {
throw new MetaDataException("The namespace [" + namespaceUri
+ "] is not registered!");
}
} catch (ServiceException e) {
throw new MetaDataException(e);
} finally {
if (registry != null) {
this.manager.release(registry);
}
}