@JsonIgnore
    public String getDecodedValue() {
        if (EncodingUtils.isBase64(value)) {
            return EncodingUtils.decodeBase64ToString(value);
        }
        return value;
    }
Gets base-64 decoded value if needed, or the value itself.

@return the decoded value
support/cas-server-support-saml-idp-core/src/main/java/org/apereo/cas/support/saml/services/idp/metadata/SamlMetadataDocument.java