title: Can not deserialize value of type java.time.LocalDateTime from String
body: <p>I have following configuration:</p>
  
  <pre><code>    @Bean
      @Primary
      public ObjectMapper objectMapper(Jackson2ObjectMapperBuilder builder) {
          ObjectMapper objectMapper = builder.createXmlMapper(false).build();
          objectMapper.configure(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS, false);
  //        objectMapper.configure(SerializationFeature.WRITE_DATE_TIMESTAMPS_AS_NANOSECONDS, false);
          return objectMapper;
      }
  </code></pre>
  
  <p>and following dependencies:</p>
  
  <pre><code>ext {
          springBootVersion = '1.5.2.RELEASE'
      }
  .... 
  dependencies {
      compile('org.springframework.boot:spring-boot-starter-websocket')
      compile("org.springframework:spring-messaging")
      compile('org.springframework.boot:spring-boot-starter-actuator')
      compile('org.springframework.boot:spring-boot-starter-thymeleaf')
      compile('org.springframework.boot:spring-boot-starter-validation')
      compile('org.springframework.boot:spring-boot-starter-web')
      compile group: 'net.jcip', name: 'jcip-annotations', version: '1.0'
      compile ("com.fasterxml.jackson.datatype:jackson-datatype-jsr310")
      testCompile('org.springframework.boot:spring-boot-starter-test')
  }
  </code></pre>
  
  <p>I added the following controller:</p>
  
  <pre><code>@PostMapping("/validation_test")
      public String testValidation(@Valid @RequestBody ClientInputMessage clientInputMessage, BindingResult result) {
          logger.info(Arrays.toString(result.getAllErrors().toArray()));
          return "main";
      }
  
  
  public class ClientInputMessage {
      @NotEmpty
      private String num1;
      @NotEmpty
      private String num2;
      @Past
      private LocalDateTime date;
  </code></pre>
  
  <p>If I pass json like this:</p>
  
  <pre><code>{
        "num1":"324",
        "num2":123,
        "date":"2014-01-01"
      }
  </code></pre>
  
  <p>application prints following output:</p>
  
  <pre><code>Failed to read HTTP message: org.springframework.http.converter.HttpMessageNotReadableException: Could not read document: Can not deserialize value of type java.time.LocalDateTime from String "2014-01-01": Text '2014-01-01' could not be parsed at index 10
   at [Source: java.io.PushbackInputStream@1204f40f; line: 4, column: 8] (through reference chain: model.ClientInputMessage["date"]); nested exception is com.fasterxml.jackson.databind.exc.InvalidFormatException: Can not deserialize value of type java.time.LocalDateTime from String "2014-01-01": Text '2014-01-01' could not be parsed at index 10
   at [Source: java.io.PushbackInputStream@1204f40f; line: 4, column: 8] (through reference chain: model.ClientInputMessage["date"])
  </code></pre>