Any example of how to use opensaml v3 to verify SAML assertion?

[Rod Widdowson]

>       InitializationService.initialize();

You may need to wait til Brent gets back but this looks right.

We had a similar issue about 4 months ago - thread starting here [1]

It ended up as being to do with an odd classpath environment.  The initialization service has to be able to see the META-INF/services/* files in the OpenSAML jars. 

http://shibboleth.net/pipermail/dev/2016-July/008406.html