Java 8 date/time type `java.time.LocalDateTime` not supported by default: add Module "com.fasterxml.jackson.datatype:jackson-datatype-jsr310" to enable handling
I have been getting this error in my spring boot project that uses Gradle. I added the below given Gradle dependency for jsr310 as well, still it didn't work.
implementation group: 'com.fasterxml.jackson.datatype', name: 'jackson-datatype-jsr310', version: '2.13.3' How can I fix this error? My project uses Java 17 and Spring 2.6.7.
JavaTimeModule should be registered explicitly:
@Configuration public class JacksonConfiguration { @Bean public ObjectMapper objectMapper() { ObjectMapper mapper = new ObjectMapper(); mapper.registerModule(new JavaTimeModule()); return mapper; } } UPDATE:
The first solution should be used with jackson-datatype-jsr310 versions 2.x before 2.9. Since you added version 2.13.3, the module should be registered as shown below, according to the answer.
@Configuration public class JacksonConfiguration { @Bean public ObjectMapper objectMapper() { return JsonMapper.builder() .addModule(new JavaTimeModule()) .build(); } } UPDATE 2:
Starting with Jackson 2.2, Modules can be automatically discovered using the Service Provider Interface (SPI) feature. You can activate this by instructing an ObjectMapper to find and register all Modules:
// Jackson 2.10 and later ObjectMapper mapper = JsonMapper.builder() .findAndAddModules() .build(); // or, 2.x before 2.9 ObjectMapper mapper = new ObjectMapper(); mapper.findAndRegisterModules(); For reference: jackson-modules-java8 - Registering modules
Java 8 date/time type java.time.LocalDateTime not supported by default: add Module "com.fasterxml.jackson.datatype:jackson-datatype-jsr310" to enable handling?2.13.3.
new ObjectMapper().registerModule(new JavaTimeModule()); Hope, this helps you.
