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copied!<p>I have a bit of a round about solution that prints it pretty decently. (Not the best Pretty Print but it is enough)</p> <p>You'll need the following from Maven:</p> <pre><code><dependency> <groupId>org.codehaus.jackson</groupId> <artifactId>jackson-mapper-asl</artifactId> <version>1.9.13</version> </dependency> </code></pre> <p>Then you can change your method to something like this:</p> <pre><code>import org.codehaus.jackson.JsonGenerationException; import org.codehaus.jackson.map.JsonMappingException; import org.codehaus.jackson.map.ObjectMapper; import org.codehaus.jackson.map.ObjectWriter; ... private final ObjectWriter WRITER = new ObjectMapper().writerWithDefaultPrettyPrinter(); ... @GET @Path("books") @Produces({ MediaType.APPLICATION_JSON }) public Response getBooks() { return Response.status(Status.OK).entity(WRITER.writeValueAsString(doGetBooks())).build(); } </code></pre> <p>Since what it does is:</p> <ol> <li>Converts your Objects to a Pretty JSON String</li> <li>Returns a <code>Response</code> object with a <code>200</code> Response Code with the <code>JSON String</code>.</li> </ol> <p>Edit: it might be wise to make this available by a adding a query param like <code>pretty=true</code> since it would increase your response output size. </p> <p>You can also look at this: <a href="http://docs.jboss.org/resteasy/2.0.0.GA/userguide/html/Built_in_JAXB_providers.html#decorators" rel="nofollow">http://docs.jboss.org/resteasy/2.0.0.GA/userguide/html/Built_in_JAXB_providers.html#decorators</a> which describes creating a XML decorator which you may be able to adapt for JSON to still return objects and make it behind the scenes. (I'll try to fiddle with this later)</p>

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