Producer Kafka throws deserialization exception - spring

Question

I have one topic and Producer/Consumer:
Dependencies (Spring Initializr)
Producer (apache kafka)
Consumer (apache kafka stream, cloud stream)
Producer:
KafkaProducerConfig
#Configuration
public class KafkaProducerConfig {
#Bean
public KafkaTemplate<String, Person> kafkaTemplate(){
return new KafkaTemplate<>(producerFactory());
}
#Bean
public ProducerFactory<String, Person> producerFactory(){
Map<String, Object> configs = new HashMap<>();
configs.put(ProducerConfig.BOOTSTRAP_SERVERS_CONFIG, "127.0.0.1:9092");
configs.put(ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG, StringSerializer.class);
configs.put(ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG, JsonSerializer.class);
return new DefaultKafkaProducerFactory<>(configs);
}
}
Controller:
#RestController
public class KafkaProducerApplication {
private KafkaTemplate<String, Person> kafkaTemplate;
public KafkaProducerApplication(KafkaTemplate<String, Person> kafkaTemplate) {
this.kafkaTemplate = kafkaTemplate;
}
#GetMapping("/persons")
public Mono<List<Person>> findAll(){
var personList = Mono.just(Arrays.asList(new Person("Name1", 15),
new Person("Name2", 10)));
personList.subscribe(dataList -> kafkaTemplate.send("topic_test_spring", dataList.get(0)));
return personList;
}
}
It works correctly when accessing the endpoint and does not throw any exception in the IntelliJ console.
Consumer:
spring:
cloud:
stream:
function:
definition: personService
bindings:
personService-in-0:
destination: topic_test_spring
kafka:
bindings:
personService-in-0:
consumer:
configuration:
value:
deserializer: org.springframework.kafka.support.serializer.JsonDeserializer
binders:
brokers:
- localhost:9091
- localhost:9092
kafka:
consumer:
properties:
spring:
json:
trusted:
packages: "*"
PersonKafkaConsumer
#Configuration
public class PersonKafkaConsumer {
#Bean
public Consumer<KStream<String, Person>> personService(){
return kstream -> kstream.foreach((key, person) -> {
System.out.println(person.getName());
});
}
}
Here I get the exception when run the project.
org.apache.kafka.streams.errors.StreamsException: Deserialization exception handler is set to fail upon a deserialization error. If you would rather have the streaming pipeline continue after a deserialization error, please set the default.deserialization.exception.handler appropriately. Caused by: java.lang.IllegalArgumentException: The class 'com.example.producer.model.Person' is not in the trusted packages: [java.util, java.lang, com.nttdata.bootcamp.yanki.model, com.nttdata.bootcamp.yanki.model.]. If you believe this class is safe to deserialize, please provide its name. If the serialization is only done by a trusted source, you can also enable trust all (). org.apache.kafka.streams.errors.StreamsException: Deserialization exception handler is set to fail upon a deserialization error. If you would rather have the streaming pipeline continue after a deserialization error, please set the default.deserialization.exception.handler appropriately.
The package indicated in the exception refers to the entity's package but in the producer. The producer's properties file has no configuration.