@Override
        public void configure(Map<String, ?> configs, String saslMechanism, List<AppConfigurationEntry> jaasConfigEntries) {
        }
Verify that messages from SaslExceptions thrown in the server during authentication are not
propagated to the client since these may contain sensitive data.
clients/src/test/java/org/apache/kafka/common/security/authenticator/SaslAuthenticatorTest.java