OpenSAML3.3 Correct way to read (adfs) FederationService.xml?

[Rob Audenaerde]

I hope I have the correct list now, it was not really clear to me where
questions regarding use of OpenSAML belong.

I'm integrating OpenSAML 3.3 in my application, and instead of hard-coding
all the urls etc, I would like to be able to use the configuration XMLs.

I was given such an XML file for a adfs instance, it is
'FederationMetadata.xml'

This is the snippet I used to read it:

    InitializationService.initialize();
    FilesystemMetadataResolver idpMetaDataProvider = new
FilesystemMetadataResolver( new
File("/home/raudenaerde/sso/FederationMetadata.xml") );
    idpMetaDataProvider.setRequireValidMetadata(true);
    idpMetaDataProvider.setParserPool(new BasicParserPool());
    idpMetaDataProvider.initialize();

However, this gave me this error:

Exception in thread "main"
net.shibboleth.utilities.java.support.component.ComponentInitializationException:
Component identifier can not be null

Using an github project (https://github.com/coveo/saml-client) that uses
OpenSAML 2.6.4 I had no problems reading it, but I'd like to stick with the
newest version 3.3.

Am I missing some basic set-up?


Thanks!
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