OpenSAML.MetadataProvider.XML : ServiceName must have TextContent.

[Cantor, Scott]

> I agree. I plan to add another rule to my schematron metadata validator. I
> guess that a warning would be more appropriate than an error. „Silly“ could
> be conveyed in the text:-)

The SAML standard disallows empty strings by default. So it's an error, not a warning. A fully correct schema would have had to subtype string and then impose a facet to require a character. And that doesn't even work because of whitespace. So it wasn't done. Schema validity is not sufficient to ensure SAML validity.

-- Scott