title: Unwrap a element in Jackson/Jaxb
body: <p>I am using Jersey+Jackon to make a REST API which works with JSON.</p>
  
  <p>Assume that I have a class as follows:</p>
  
  <pre><code>@XmlRootElement
  public class A {
      public String s;
  }
  </code></pre>
  
  <p>and here is my jersey method which uses the class:</p>
  
  <pre><code>@GET
  @Produces(MediaType.APPLICATION_JSON)
  public Object get(@PathParam("id") String id) throws Exception{
      A[] a= new A[2];
      a[0] = new A();
      a[0].s="abc";
      a[1] = new A();
      a[1].s="def";
      return a;
  }
  </code></pre>
  
  <p>the out put is:</p>
  
  <pre><code>{"a":[{"s":"abc"},{"s":"def"}]}
  </code></pre>
  
  <p>but I want it to be like this:</p>
  
  <pre><code>[{"s":"abc"},{"s":"def"}]
  </code></pre>
  
  <p>What should I do?
  Please help me.</p>