SpringBoot Spring boot does not handle Joda Day serialization

I am getting an error in a spring boot rest api because spring does not handle serialization of org.joda.time.Days.

org.springframework.http.converter.HttpMessageConversionException: Type definition error: [simple type, class org.joda.time.Days]; nested exception is com.fasterxml.jackson.databind.exc.InvalidDefinitionException: Joda date/time type `org.joda.time.Days` not supported by default: add Module "com.fasterxml.jackson.datatype:jackson-datatype-joda" to enable handling (through reference chain: java.util.ArrayList[4]->io.nflow.rest.v1.msg.ListWorkflowDefinitionResponse["settings"]->io.nflow.rest.v1.msg.ListWorkflowDefinitionResponse$Settings["historyDeletableAfter"])

I have exhausted all resources on Stack Overflow, and I have followed the advice given in the exception. I have added the following to my Spring Boot application:

@Bean
public Jackson2ObjectMapperBuilderCustomizer jsonCustomizer() {
    logger.info("Json customizer invoked.");
    return builder -> builder.modules(new JodaModule());
}

And the following dependency to the pom.xml:

<dependency>
    <groupId>com.fasterxml.jackson.datatype</groupId>
    <artifactId>jackson-datatype-joda</artifactId>
</dependency>

And still I get the above error. I am out of ideas and options. How do we get spring-boot to handle org.joda.time.Days? this class is an implementation of the interface: ReadablePeriod. JodaModule has an entry in it's constructor as follows:

 addDeserializer(ReadablePeriod.class, new PeriodDeserializer(false));

What will it take for spring to be able to handle org.joda.time.Days as one would expect given the current documentation and available help?

Comment From: bclozel

Could you share a minimal, sample application that reproduces the issue?

Comment From: spring-projects-issues

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Comment From: spring-projects-issues

Closing due to lack of requested feedback. If you would like us to look at this issue, please provide the requested information and we will re-open the issue.

Comment From: zelaskoa

@steowens could you fix the problem ? I have same issue

Comment From: zelaskoa

@steowens i could resolve it by explicit setting a Json Encoder/Decoder to the Webclient

ExchangeStrategies strategies =
    ExchangeStrategies.builder()
            .codecs(
                clientDefaultCodecsConfigurer -> {
                  clientDefaultCodecsConfigurer
                      .defaultCodecs()
                      .jackson2JsonEncoder(
                          new Jackson2JsonEncoder(objectMapper, MediaType.APPLICATION_JSON));
                  clientDefaultCodecsConfigurer
                      .defaultCodecs()
                      .jackson2JsonDecoder(
                          new Jackson2JsonDecoder(objectMapper, MediaType.APPLICATION_JSON));
                })
            .build();
    return WebClient.builder()
        .exchangeStrategies(strategies)
        .build();

Comment From: javieraviles

You can also configure Jackson explicitly by creating a Jackson2ObjectMapperBuilderCustomizer bean in your application configuration:

@Configuration
public class JacksonConfig {

  @Bean
  public Jackson2ObjectMapperBuilderCustomizer jacksonCustomizer() {
    return builder -> {
      builder.featuresToEnable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
      builder.modules(new JodaModule());
    };
  }
}