title: Jackson deserialize list of strings to a string
body: <p>Is there a simple way to deserialize a list of strings into a single string?</p>
  
  <p>For example, I would have this JSON:</p>
  
  <pre><code>{
      "stringList": [
          "somethingElse"
      ],
      "simpleString": "something",
  }
  </code></pre>
  
  <p>I would like it to be deserialized into this POJO:</p>
  
  <pre><code>@Data
  @JsonIgnoreProperties(ignoreUnknown = true)
  public class AClass {
  
      @JsonProperty("stringList")
      private String justAString;
  
      @JsonProperty("simpleString")
      private String someString;
  }
  </code></pre>
  
  <p>I would like to mention that it is certain that the list has only one item and have no control over how it is generated.
  Is the only way to go a custom deserializer for the <strong>justAString</strong> field?</p>
  
  <p><strong>EDIT</strong> I would like to use <strong>ObjectMapper</strong> class from Jackson if it is possible</p>