title: How to traverse a POJO type with jackson
body: <p>If I have a POJO class like </p>
  
  <pre><code>public class Employee {
       public String name;
       public String department;
  }
  </code></pre>
  
  <p>Jackson can convert it to a json string '{"name" : "x", "depaturement" : "y"}'; I want to get the same POJO information. Dose there have a function likes below：</p>
  
  <p><code>RootNode rootNode = JacksonSomeFunction.get(Employee.class)
    assert(rootNode[0].name == "name")
    assert(rootNode[0].type == String.class)
  </code></p>