Not sure if this is a weird local config or some sort of bug.

I have these set globally in cas.properties.

cas.authn.mfa.duo[0].bypass.principal-attribute-name=mfaDisable
cas.authn.mfa.duo[0].bypass.principal-attribute-value=nomfa

When SAML IdP support is included in the WAR overlay with:
implementation "org.apereo.cas:cas-server-support-saml-idp",
I get a NullPointerException after the Duo Push when the mfaDisable 
attribute is null.  
and I include it in the list of released attributes in the service 
definition like this:

  "attributeReleasePolicy" : {
    "@class" : 
"org.apereo.cas.services.ReturnAllowedAttributeReleasePolicy",
    "allowedAttributes" : [ "java.util.ArrayList", [ "cn", "mail", "sn", 
"uid", "displayName", "memberOf",  "mfaDisable", "sAMAccountName", 
"departmentNumber" ] ]
  }

If I remove it from this list, there is no exception.  The departmentNumber 
attribute is also null and does not trigger the exception.  
If the mfaDisable attribute has a value, the exception is not triggered. 

Also, if I remove SAML IdP support from the WAR overlay, it does not 
trigger an exception. 

My workaround for now is to remove the mfaDisable attribute while keeping 
SAML support. 

Any ideas?


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