<p:feedReader>

Si desemos utilizar <p:feedReader> componente de Primefaces

<p:feedReader value="http://rss.news.yahoo.com/rss/sports" var="feed">
   <h:outputText value="#{feed.title}" style="font-weight: bold;display:block"/>
   <h:outputText value="#{feed.description.value}" escape="false"/>
   <p:separator />
</p:feedReader>

Debemos incluir las siguientes dependencias <p:feedReader

<dependency>

           <groupId>com.totsp.feedpod</groupId>

           <artifactId>purl-org-content</artifactId>

           <version>0.3</version>

       </dependency>

 <dependency>

           <groupId>rome</groupId>

           <artifactId>rome</artifactId>

           <version>1.0</version>

       </dependency>

  <dependency>

           <groupId>jdom</groupId>

           <artifactId>jdom</artifactId>

           <version>1.1</version>

           <type>pom</type>

       </dependency>