title: Swagger not generating api model value
body: <p>I'm using swagger to document my REST api.</p>
  
  <p>I wan't to automatically generate the documentation, so I'm using swagger-jaxrs with annotations.</p>
  
  <pre><code>@GET
  @Path("/news/{id}")
  @Produces(MediaType.APPLICATION_JSON)
  @ApiResponses(value = { 
          @ApiResponse(code = 200, message = "News found",  response = NewsEntry.class)})
  </code></pre>
  
  <p>NewsEntry is my model, and it's setted up as following:</p>
  
  <pre><code>@ApiModel("News Entry")
  public class NewsEntry {
      @ApiModelProperty(value = "the id of the item", required = true)
      private static long id;
      @ApiModelProperty(value = "content", required = true)
      private static String content;
  
  }
  </code></pre>
  
  <p>After a few tests, I found out that, if there is not getters/setters in NewsEntry, it doesn't crashes, however, it generates an empty model... Any idea of what I'm doing wrong?</p>
  
  <p>This is my pom:</p>
  
  <pre><code>&lt;dependency&gt;
      &lt;groupId&gt;io.swagger&lt;/groupId&gt;
      &lt;artifactId&gt;swagger-jersey-jaxrs&lt;/artifactId&gt;
      &lt;version&gt;1.5.0&lt;/version&gt;
  &lt;/dependency&gt;
  
  &lt;dependency&gt;
      &lt;groupId&gt;io.swagger&lt;/groupId&gt;
      &lt;artifactId&gt;swagger-annotations&lt;/artifactId&gt;
      &lt;version&gt;1.5.8 &lt;/version&gt;
  &lt;/dependency&gt;
  
  &lt;dependency&gt;
      &lt;groupId&gt;io.swagger&lt;/groupId&gt;
      &lt;artifactId&gt;swagger-core&lt;/artifactId&gt;
      &lt;version&gt;1.5.8 &lt;/version&gt;
  &lt;/dependency&gt;
  
  &lt;dependency&gt;
      &lt;groupId&gt;io.swagger&lt;/groupId&gt;
      &lt;artifactId&gt;swagger-jaxrs&lt;/artifactId&gt;
      &lt;version&gt;1.5.8 &lt;/version&gt;
  &lt;/dependency&gt;
  
  &lt;dependency&gt;
      &lt;groupId&gt;io.swagger&lt;/groupId&gt;
      &lt;artifactId&gt;swagger-models&lt;/artifactId&gt;
      &lt;version&gt;1.5.8 &lt;/version&gt;
  &lt;/dependency&gt;
  
  &lt;dependency&gt;
      &lt;groupId&gt;org.webjars&lt;/groupId&gt;
      &lt;artifactId&gt;swagger-ui&lt;/artifactId&gt;
      &lt;version&gt;2.1.4&lt;/version&gt;
      &lt;scope&gt;runtime&lt;/scope&gt;
  &lt;/dependency&gt;
  
  &lt;dependency&gt;
      &lt;groupId&gt;org.jboss.resteasy&lt;/groupId&gt;
      &lt;artifactId&gt;resteasy-jaxrs&lt;/artifactId&gt;
      &lt;version&gt;3.1.4.Final&lt;/version&gt;
  &lt;/dependency&gt;
  </code></pre>