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PORestful JAX-RS Server Error
 

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    <p>I have problems using Restful Webservices using the Jersey implementation. In the documentation it is written that i should download this : <a href="https://jersey.java.net/download.html" rel="nofollow">Jersey JAX-RS 2.0 RI bundle</a>, unzip it and add the jars to my WEB-INF/lib folder. These jars are:</p> <ul> <li>jersey-client</li> <li>jersey-common</li> <li>jersey-container-servlet</li> <li>jersey-container-servlet-core</li> <li>jersey-server</li> </ul> <p>If i do so i always get the following exception:</p> <pre><code>java.lang.ClassNotFoundException: com.sun.jersey.spi.container.servlet.ServletContainer </code></pre> <p>After some researching i found out that i should add jersey-servlet-1.12.jar instead of adding the jars from the download source posted above. So I did it. I added this to my web.xml</p> <pre class="lang-xml prettyprint-override"><code>&lt;servlet&gt; &lt;servlet-name&gt;JAX-RS Servlet&lt;/servlet-name&gt; &lt;servlet-class&gt;com.sun.jersey.spi.container.servlet.ServletContainer&lt;/servlet-class&gt; &lt;load-on-startup&gt;1&lt;/load-on-startup&gt; &lt;/servlet&gt; &lt;servlet-mapping&gt; &lt;servlet-name&gt;JAX-RS Servlet&lt;/servlet-name&gt; &lt;url-pattern&gt;/jaxrs/*&lt;/url-pattern&gt; &lt;/servlet-mapping&gt; </code></pre> <p>And i implemented a small test-class:</p> <pre class="lang-java prettyprint-override"><code>import java.util.List; import javax.persistence.EntityManager; import javax.persistence.EntityManagerFactory; import javax.persistence.Persistence; import javax.persistence.TypedQuery; import javax.ws.rs.GET; import javax.ws.rs.Path; import javax.ws.rs.Produces; import de.hof.university.spj.model.Movie; @Path("/test") public class Test { @GET @Produces("application/json; charset=UTF-8") public List&lt;Movie&gt; getMovieList() { EntityManagerFactory factory = Persistence.createEntityManagerFactory("SPJUnit"); EntityManager em = factory.createEntityManager(); TypedQuery&lt;Movie&gt; query = em.createQuery("Select m FROM Movie m WHERE m.movieID = 4204", Movie.class); return query.getResultList(); } } </code></pre> <p>When i now call <code>http://localhost:8080/MyApp/jaxrs/test</code> i get this error:</p> <pre><code>HTTP Status 500 - Internal Server Error. The server encountered an internal error (Internal Server Error) that prevented it from fulfilling this request. </code></pre> <p>I dont know how to do use the jersey implementation correctly.</p>
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