ClassNotFoundException : com.sun.syndication.feed.WireFeed

Problem

Developing RSS with Spring MVC, extends “AbstractRssFeedView“, hit following error message during application start up.

Caused by: java.lang.NoClassDefFoundError: com/sun/syndication/feed/WireFeed
	at java.lang.Class.getDeclaredConstructors0(Native Method)
	at java.lang.Class.privateGetDeclaredConstructors(Class.java:2389)
	at java.lang.Class.getDeclaredConstructors(Class.java:1836)
	//...
Caused by: java.lang.ClassNotFoundException: com.sun.syndication.feed.WireFeed
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1516)
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1361)
	at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
	... 41 more

Solution

Spring MVC using “ROME” to generate RSS feed. For Maven, include below dependency in pom.xml file.

	<dependency>
		<groupId>net.java.dev.rome</groupId>
		<artifactId>rome</artifactId>
		<version>1.0.0</version>
	</dependency>