implementing Custom Serializer for LocalDate in Jackson 2.12 in Spring Boot
I'm working on a project and hit a roadblock. I'm relatively new to this, so bear with me... I'm working on a project and hit a roadblock... I'm working with a question when trying to serialize a custom object containing `LocalDate` fields to JSON using Jackson in a Spring Boot application (version 2.5.4). I have a DTO class like this: ```java import java.time.LocalDate; public class UserDTO { private String name; private LocalDate birthDate; // getters and setters } ``` When I try to return this `UserDTO` from my REST controller, I receive the following behavior: ``` com.fasterxml.jackson.databind.JsonMappingException: want to serialize value of type `java.time.LocalDate` (use `java.time.LocalDate` or `java.time.LocalDateTime`) ``` I've checked my dependencies and I have included the `jackson-datatype-jsr310` library, but it seems that the `LocalDate` is not being recognized. Here’s how I configured the Jackson ObjectMapper in my `application.yml`: ```yaml spring: jackson: serialization: WRITE_DATES_AS_TIMESTAMPS: false ``` I also tried registering the Java Time module manually: ```java import com.fasterxml.jackson.databind.ObjectMapper; import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; @Configuration public class JacksonConfig { @Bean public ObjectMapper objectMapper() { ObjectMapper mapper = new ObjectMapper(); mapper.registerModule(new JavaTimeModule()); return mapper; } } ``` Despite these efforts, I'm still working with the same behavior. I am unsure if the question lies in my configuration or if there’s something else I might be missing. Has anyone faced a similar scenario and can point me in the right direction? For context: I'm using Java on Ubuntu. What am I doing wrong? I'd love to hear your thoughts on this. Has anyone dealt with something similar?