@Override
                    protected SaslHandshakeRequest createSaslHandshakeRequest(short version) {
                        return buildSaslHandshakeRequest(saslMechanism, (short) 0);
                    }
Tests OAUTHBEARER fails the connection when the client presents a token with
insufficient scope .
clients/src/test/java/org/apache/kafka/common/security/authenticator/SaslAuthenticatorTest.java