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PORESTEasy and ContextResolver<ObjectMapper> for Jackson
 

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    <p>I have a problem with the customization of my RESTEasy JSON response.</p> <p>In <code>web.xml</code> I use autoscan:</p> <pre><code>&lt;context-param&gt; &lt;param-name&gt;resteasy.scan&lt;/param-name&gt; &lt;param-value&gt;true&lt;/param-value&gt; &lt;/context-param&gt; </code></pre> <p>Here is my customization class for <code>ObjectMapper</code>, (I've set not null fields and new human readable date):</p> <pre><code>@Provider @Produces(MediaType.APPLICATION_JSON) public class JacksonConfig implements ContextResolver&lt;ObjectMapper&gt; { private Logger log = Logger.getLogger(PropertiesConfig.LOG_CATEGORY); private ObjectMapper objectMapper; public JacksonConfig() throws Exception { objectMapper = new ObjectMapper(); objectMapper.getSerializationConfig().setSerializationInclusion(JsonSerialize.Inclusion.NON_NULL); objectMapper.setDateFormat(new SimpleDateFormat("dd.MM.yyyy")); objectMapper.configure(SerializationConfig.Feature.WRITE_DATES_AS_TIMESTAMPS, false); } @Override public ObjectMapper getContext(Class&lt;?&gt; arg0) { return objectMapper; } } </code></pre> <p>Here is my servlet:</p> <pre><code>@Path("/search") public class Search extends ArtesAPI { @GET @Path("/") @Produces(MediaType.APPLICATION_JSON) public Response search(@Context HttpServletRequest request){ RequestManager reqManager = new RequestManager(request); MyResponse response = reqManager.doSearchRequest(); return Response.status(200).entity(response).build(); } } </code></pre> <p>When I deploy to the server, RESTEasy prints this log:</p> <pre><code>10:43:44,320 INFO [TomcatDeployment] deploy, ctxPath=/MyServer 10:43:44,544 INFO [ConfigurationBootstrap] Adding scanned @Provider: myserver.servlets.JacksonConfig 10:43:44,545 INFO [ConfigurationBootstrap] Adding scanned resource: myserver.servlets.Search </code></pre> <p>But when I call the search API, I receive this response: (here a little part of response)</p> <pre><code>{ "entry": [ { "name": "abbigliamento", "description": null, "lastUpdate": 1375448941000, "subCategory": null }, { "name": "car", "description": null, "lastUpdate": null, "subCategory": null } } </code></pre> <p>My server response gives me null fields and <code>lastUpdate</code> in milliseconds.</p> <p>Where have I gone wrong?</p> <p>Thanks in advance.</p>
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