@Override
    public ConfigurationProperties getProperties() {
        val properties = new Properties();
        properties.setProperty(CONFIG_APACHE_XML_IGNORE_LINEBREAKS, "true");
        properties.setProperty(CONFIG_SUN_XML_IGNORE_LINEBREAKS, "true");
        properties.setProperty(CONFIG_STRICT_MODE, "false");
        return new PropertiesAdapter(properties);
    }
Configuration property that controls whether line breaks particularly in certificates should be ignored.
support/cas-server-support-saml-core-api/src/main/java/org/apereo/cas/support/saml/OpenSamlConfigurationPropertiesSource.java