{
if (url == null)
throw new IllegalArgumentException("Null url");
UnmarshallerFactory factory = UnmarshallerFactory.newInstance();
Unmarshaller unmarshaller = factory.newUnmarshaller();
try
{
BootstrapMetaData result = (BootstrapMetaData) unmarshaller.unmarshal(url.toString(),
new BootstrapSchemaBinding());
if (result == null)