title: java.lang.NoSuchFieldError: ACCEPT_CASE_INSENSITIVE_VALUES
body: <p>I have a Spring Boot 2 project.
  The model is </p>
  
  <pre><code>@Entity
  @SequenceGenerator(name = "climate_gen", sequenceName = "climate_gen", initialValue = 100)
  public class Climate {
      @Id
      @GeneratedValue(strategy = GenerationType.AUTO, generator = "climate_gen")
      private long id;
  
      private float temperature;
      private float humidity;
      @JsonFormat(shape=JsonFormat.Shape.STRING, pattern="yyyy-MM-dd'T'HH:mm:ss")
      private LocalDateTime date;
      @ManyToOne(fetch = FetchType.EAGER)
      @JoinColumn(name = "location_id", nullable = false)
      private Location location;
  </code></pre>
  
  <p>The database has default records and using curl gets those records. But if I try to post</p>
  
  <pre><code>curl -H "Authorization: Bearer $TOKEN" -k -w "\n" -X POST -d '{"temperature":15.3,"humidity":65.4,"date":"2019-12-17T11:51:00","location":{"id":1}}' -H "Content-Type: application/json" https://mint191:8453/api/v1/climates
  
  {"timestamp":"2019-12-18T13:53:22.473+0000","status":500,"error":"Internal Server Error","message":"ACCEPT_CASE_INSENSITIVE_VALUES","path":"/api/v1/climates"}
  </code></pre>
  
  <p>And the log output is </p>
  
  <blockquote>
    <p>2019-12-18 13:53:42.056 ERROR 11401 --- [nio-8453-exec-8]
    o.a.c.c.C.[.[.[/].[dispatcherServlet]    : Servlet.service() for
    servlet [dispatcherServlet] in context with path [] threw exception
    [Handler dispatch failed; nested exception is
    java.lang.NoSuchFieldError: ACCEPT_CASE_INSENSITIVE_VALUES] with root
    cause</p>
    
    <p>java.lang.NoSuchFieldError: ACCEPT_CASE_INSENSITIVE_VALUES    at
    com.fasterxml.jackson.datatype.jsr310.deser.JSR310DateTimeDeserializerBase.acceptCaseInsensitiveValues(JSR310DateTimeDeserializerBase.java:126)
    ~[jackson-datatype-jsr310-2.10.1.jar!/:2.10.1]    at
    com.fasterxml.jackson.datatype.jsr310.deser.JSR310DateTimeDeserializerBase.createContextual(JSR310DateTimeDeserializerBase.java:86)
    ~[jackson-datatype-jsr310-2.10.1.jar!/:2.10.1]</p>
  </blockquote>
  
  <p>I have several other models that are made of Strings and references. These all create with no problem.</p>
  
  <p>Having googled around, I possibly have to use ObjectMapper and enable the ACCEPT_CASE_INSENSITIVE_VALUE feature. If so, do I have to set this at the service level? Controller? Model?</p>
  
  <p>But in a more general context, what is actually happening here? What is jackson complaining about and why this model and not others? </p>
  
  <p>Finally, because none of the fields are not null, I tried posting a series of requests, each with a afield missing. In each case, same result.</p>
  
  <p>Regards,</p>