@Override
    public void injectEnvironmentInfo(final Formatter formatter, final Environment environment,
                                      final Class<?> sourceClass) {
        super.injectEnvironmentInfo(formatter, environment, sourceClass);
        formatter.format("Undertow Version: %s%n", Version.getFullVersionString());
    }
This is {@link CasUndertowBanner}.

@author Misagh Moayyed
@since 5.1.0
webapp/cas-server-webapp-undertow/src/main/java/org/apereo/cas/CasUndertowBanner.java