Sprinboot Jackson Date Serialize - spring-boot

Question

i face a litle problem with Jackson on springboot web, i'm expecting this kind of response.
{
'date': 'string of date'
}
but i get back this
[
0: java.sql.date,
1: long number of timestamp
]
please how to configure springboot to avoid this?
#Configuration
public class BootConfiguration {
#Bean
#Primary
public PasswordEncoder passwordEncoder() {
return PasswordEncoderFactories.createDelegatingPasswordEncoder();
}
#Bean
public JavaTimeModule javaTimeModule() {
return new JavaTimeModule();
}
#Bean
public Jdk8Module jdk8TimeModule() {
return new Jdk8Module();
}
#Bean
public CoreJackson2Module coreJackson2Module() {
return new CoreJackson2Module();
}
#Bean
public OAuth2AuthorizationServerJackson2Module authorizationServerJackson2Module(){
return new OAuth2AuthorizationServerJackson2Module();
}
public List<Module> securityModules(){
ClassLoader classLoader = JdbcOAuth2AuthorizationService.class.getClassLoader();
return SecurityJackson2Modules.getModules(classLoader);
}
#Bean
#Primary
#Order(Ordered.HIGHEST_PRECEDENCE)
public ObjectMapper objectMapper() {
ObjectMapper mapper = new ObjectMapper().findAndRegisterModules();
mapper.registerModule(coreJackson2Module());
mapper.registerModule(javaTimeModule());
mapper.registerModule(jdk8TimeModule());
mapper.registerModules(securityModules());
mapper.registerModule(authorizationServerJackson2Module());
mapper.addMixIn(UserPrincipal.class, Object.class);
return mapper;
}
}
this is the controller method where
#GetMapping(value = "/authentications", params = {"pge","lmt", "slug"})
public ResponseEntity<?> getLastLogins(
Authentication authentication,
#RequestParam("lmt")Integer limit,
#RequestParam("pge")Integer page,
#RequestParam("slug")String slug){
return new ResponseEntity<>(loginManager.findAllAuthentications(authentication.getName(),slug,limit,page), HttpStatus.OK);
}
}
and this is the model containing the properties i try to get back
#Data
public class User implements Serializable {
private String firstName;
private String lastName;
private Date date;
private Role role;
}