After upgrading from Resteasy 2.4 to 3.0.5, none of my client calls work 
anymore. The entity which I am expecting (as simple as a String) is always 
null. In debug mode I can see it being set in the Response object on the server 
side, but on the client side the entity in the Response is null.
Here is an example call:

The interface:

  /**
   * @return all expired licenses
   */
  @GET
  @ClientResponseType(entityType = LicenseList.class)
  @Path("/expired")
  @Produces(MediaType.APPLICATION_XML)
  public Response getExpiredLicenses();

The implementation:

  /**
   * @return all expired licenses
   */
  @Override
  public Response getExpiredLicenses() {
    try {
      LicenseList list = LicensesDBUtil.getExpiredLicenses();
      Response resp = Response.ok().entity(list).build();
      return resp;
    } catch (SQLException e) {
      LOG.error("Error getting expired licenses : " + e.getMessage());
      return   
Response.status(Status.INTERNAL_SERVER_ERROR).entity(e.getMessage()).type(MediaType.TEXT_PLAIN).build();
    }

The test call :

  @Test
  public void testGetExpiredLicenses() throws Exception {
        ResteasyClientBuilder rsb = new ResteasyClientBuilder();
    ResteasyClient rsc = rsb.build();
    ResteasyWebTarget target = rsc.target(BASEURL);
    return target.proxy(RiskScapeLicenseService.class);
    Response response = client.getExpiredLicenses();
    assertTrue(HttpResponseCodes.SC_OK == response.getStatus());
    @SuppressWarnings("unchecked")
    JAXBElement<LicenseList> element = (JAXBElement<LicenseList>) 
response.getEntity();
    LicenseList list = element.getValue();
    assertEquals(4, list.getLicenses().size());
    for (License lic : list.getLicenses()) {
      assertTrue((new Date()).after(DateUtils.parseDate(lic.getValidTo(), new 
String[] { "yyyy-MM-dd" })));
    }
  }

My web.xml file:

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; 
xmlns="http://java.sun.com/xml/ns/javaee"; 
xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"; 
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"; version="2.5">
  <display-name>riskscapelic_rest</display-name>
  <listener>
    <listener-class>
            org.jboss.resteasy.plugins.server.servlet.ResteasyBootstrap
    </listener-class>
  </listener>
  <servlet>
    <servlet-name>Resteasy</servlet-name>
    
<servlet-class>org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher</servlet-class>
  </servlet>
  <servlet-mapping>
    <servlet-name>Resteasy</servlet-name>
    <url-pattern>/*</url-pattern>
  </servlet-mapping>
  <context-param>
    <param-name>resteasy.scan</param-name>
    <param-value>true</param-value>
  </context-param>
  <context-param>
    <param-name>resteasy.servlet.mapping.prefix</param-name>
    <param-value>/</param-value>
  </context-param>
</web-app>

The LicenseList class:

@XmlRootElement(name = "LicenseList")
@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "licenseList", propOrder = {
    "licenses"
})
public class LicenseList {

    @XmlElement(name = "Licenses", required = true)
    protected List<License> licenses;

    /**
     * Gets the value of the licenses property.
     *
     * <p>
     * This accessor method returns a reference to the live list,
     * not a snapshot. Therefore any modification you make to the
     * returned list will be present inside the JAXB object.
     * This is why there is not a <CODE>set</CODE> method for the licenses 
property.
     *
     * <p>
     * For example, to add a new item, do as follows:
     * <pre>
     *    getLicenses().add(newItem);
     * </pre>
     *
     *
     * <p>
     * Objects of the following type(s) are allowed in the list
     * {@link License }
     *
     *
     */
    public List<License> getLicenses() {
        if (licenses == null) {
            licenses = new ArrayList<License>();
        }
        return this.licenses;
    }

}

I am using JDK 1.7, Tomcat 7.0.47
--
Dr Gabriella Turek
Sr. Software Engineer, Systems Development Team
NIWA Auckland, New Zealand
Tel: +64 9 3754645
www.niwa.co.nz
NIWA - Enhancing the benefit of New Zealand’s natural resources.
--
Please consider the environment before printing this email.
NIWA is the trading name of the National Institute of Water & Atmospheric 
Research Ltd.
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