Given this Kafka producer code snippet, what will happen if the message does not match the registered schema?

Given this Kafka producer code snippet, what will happen if the message does not match the registered schema?

props.put("schema.registry.url", "http://localhost:8081");
props.put("value.serializer", "io.confluent.kafka.serializers.KafkaAvroSerializer");
Producer producer = new KafkaProducer<>(props);
producer.send(new ProducerRecord<>("topic", invalidRecord));