Spring boot 3 reactive redis native problem in runtime

[ricardkollcaku]

Everything works well when i run the application normally but im receiving error when running the application in native.
The project is simple contains just one DummyModel

public class DummyModel {
  private String name;
  public DummyModel() {}
  public DummyModel(String name) {this.name = name;}
  public String getName() {return name;}
  public void setName(String name) {this.name = name;}
}

Template Configuration

@Configuration
public class RedisConfiguration {
  @Bean
  public ReactiveRedisTemplate<String, DummyModel> template(ReactiveRedisConnectionFactory factory) {
    StringRedisSerializer keySerializer = new StringRedisSerializer();
    Jackson2JsonRedisSerializer<DummyModel> valueSerializer = new Jackson2JsonRedisSerializer<>( DummyModel.class);
    RedisSerializationContext.RedisSerializationContextBuilder<String, DummyModel> builder = RedisSerializationContext.newSerializationContext(keySerializer);
    RedisSerializationContext<String, DummyModel> context = builder.value(valueSerializer).build();
    return new ReactiveRedisTemplate<>(factory, context);
  }
}

And the Repository:

@Component
public class DummyRedisRepository {
  @Autowired
  ReactiveRedisTemplate<String, DummyModel> template;
  public Mono<DummyModel> save(DummyModel dummyModel) {
    return template.opsForValue().set(dummyModel.getName(), dummyModel)
        .filter(aBoolean -> aBoolean)
        .map(aBoolean -> dummyModel);
  }}
  

Whenever i try to save an object i get the following serialisation problem:

reactor.core.Exceptions$ErrorCallbackNotImplemented: org.springframework.data.redis.serializer.SerializationException: Could not write JSON: No serializer found for class com.example.demo.data.model.DummyModel and no properties discovered to create BeanSerializer (to avoid exception, disable SerializationFeature.FAIL_ON_EMPTY_BEANS). This appears to be a native image, in which case you may need to configure reflection for the class that is to be serialized
Caused by: org.springframework.data.redis.serializer.SerializationException: Could not write JSON: No serializer found for class com.example.demo.data.model.DummyModel and no properties discovered to create BeanSerializer (to avoid exception, disable SerializationFeature.FAIL_ON_EMPTY_BEANS). This appears to be a native image, in which case you may need to configure reflection for the class that is to be serialized
      at org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer.serialize(Jackson2JsonRedisSerializer.java:151) ~[na:na]
      at org.springframework.data.redis.serializer.DefaultRedisElementWriter.write(DefaultRedisElementWriter.java:41) ~[na:na]
      at org.springframework.data.redis.serializer.RedisSerializationContext$SerializationPair.write(RedisSerializationContext.java:287) ~[demo:3.0.5-SNAPSHOT]
      at org.springframework.data.redis.core.DefaultReactiveValueOperations.rawValue(DefaultReactiveValueOperations.java:317) ~[na:na]
      at org.springframework.data.redis.core.DefaultReactiveValueOperations.lambda$set$0(DefaultReactiveValueOperations.java:63) ~[na:na]
      at org.springframework.data.redis.core.DefaultReactiveValueOperations.lambda$createMono$34(DefaultReactiveValueOperations.java:309) ~[na:na]
      at org.springframework.data.redis.core.ReactiveRedisTemplate.lambda$doInConnection$1(ReactiveRedisTemplate.java:244) ~[demo:3.0.5-SNAPSHOT]
      at reactor.core.publisher.FluxUsingWhen.deriveFluxFromResource(FluxUsingWhen.java:120) ~[demo:3.5.5]
      at reactor.core.publisher.FluxUsingWhen.subscribe(FluxUsingWhen.java:86) ~[demo:3.5.5]
      at reactor.core.publisher.Mono.subscribe(Mono.java:4485) ~[demo:3.5.5]
      at reactor.core.publisher.Mono.subscribeWith(Mono.java:4551) ~[demo:3.5.5]
      at reactor.core.publisher.Mono.subscribe(Mono.java:4452) ~[demo:3.5.5]
      at reactor.core.publisher.Mono.subscribe(Mono.java:4388) ~[demo:3.5.5]
      at reactor.core.publisher.Mono.subscribe(Mono.java:4335) ~[demo:3.5.5]
      at com.example.demo.DemoApplication.run(DemoApplication.java:28) ~[demo:na]
      at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:769) ~[demo:3.0.6-SNAPSHOT]
      at org.springframework.boot.SpringApplication.callRunners(SpringApplication.java:753) ~[demo:3.0.6-SNAPSHOT]
      at org.springframework.boot.SpringApplication.run(SpringApplication.java:317) ~[demo:3.0.6-SNAPSHOT]
      at org.springframework.boot.SpringApplication.run(SpringApplication.java:1304) ~[demo:3.0.6-SNAPSHOT]
      at org.springframework.boot.SpringApplication.run(SpringApplication.java:1293) ~[demo:3.0.6-SNAPSHOT]
      at com.example.demo.DemoApplication.main(DemoApplication.java:22) ~[demo:na]
Caused by: com.fasterxml.jackson.databind.exc.InvalidDefinitionException: No serializer found for class com.example.demo.data.model.DummyModel and no properties discovered to create BeanSerializer (to avoid exception, disable SerializationFeature.FAIL_ON_EMPTY_BEANS). This appears to be a native image, in which case you may need to configure reflection for the class that is to be serialized
      at com.fasterxml.jackson.databind.SerializerProvider.reportBadDefinition(SerializerProvider.java:1306) ~[demo:2.14.2]
      at com.fasterxml.jackson.databind.DatabindContext.reportBadDefinition(DatabindContext.java:408) ~[demo:2.14.2]
      at com.fasterxml.jackson.databind.ser.impl.UnknownSerializer.failForEmpty(UnknownSerializer.java:49) ~[na:na]
      at com.fasterxml.jackson.databind.ser.impl.UnknownSerializer.serialize(UnknownSerializer.java:30) ~[na:na]
      at com.fasterxml.jackson.databind.ser.DefaultSerializerProvider._serialize(DefaultSerializerProvider.java:480) ~[demo:2.14.2]
      at com.fasterxml.jackson.databind.ser.DefaultSerializerProvider.serializeValue(DefaultSerializerProvider.java:319) ~[demo:2.14.2]
      at com.fasterxml.jackson.databind.ObjectMapper._writeValueAndClose(ObjectMapper.java:4624) ~[demo:2.14.2]
      at com.fasterxml.jackson.databind.ObjectMapper.writeValueAsBytes(ObjectMapper.java:3892) ~[demo:2.14.2]
      at org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer.serialize(Jackson2JsonRedisSerializer.java:149) ~[na:na]
      ... 20 common frames omitted
      ```

`

[mp911de]

Please provide all necessary reflection hints for for data model that you intend to use with Jackson according to Jackson needs. Most likely, you need to include all reflection metadata for methods, constructors and fields.