PicketLink module parsing exception

Issue

The Identity Provider (IDP) Entity descriptor XML generated by our IDP infrastructure (based on Novell Access Manager (NAM)) produces a parsing exception while being processed by picketlink.
This parsing exceptions come from a couple of tags and attributes that PicketLink seems to get stuck into.
The troublesome tags are:

<md:SPSSODescriptor AuthnRequestsSigned="true" ID="id92GPKNKlFZk7.cvYVWEyL8QtWWw" protocolSupportEnumeration="urn:oasis:names:tc:SAML:2.0:protocol">

The attribute AuthnRequestsSigned="true" is mandatory.

<md:IDPSSODescriptor ID="iduJi627sd6xPmFRXzCmY8zRXGu7U" WantAuthnRequestsSigned="true" protocolSupportEnumeration="urn:oasis:names:tc:SAML:2.0:protocol">

The attribute WantAuthnRequestsSigned="true" is mandatory.

<md:EncryptionMethod Algorithm="http://www.w3.org/2001/04/xmlenc#tripledes-cbc" />

The entire tag produces a parsing exception.

<md:AssertionIDRequestService Binding="urn:oasis:names:tc:SAML:2.0:bindings:SOAP" Location="https://lab.test.net/idp/saml2/soap" />