RSS Feed fails with class not found error

Get the error below. I've checked and that class is in rome-0.6-patched.jar.
Not sure why this is failing.

Cause:
com.ibm.ws.webcontainer.webapp.WebAppErrorReport: java.lang.NoClassDefFoundError: com/sun/syndication/io/WireFeedOutput

Stack Trace: [hide]

com.ibm.ws.webcontainer.webapp.WebAppErrorReport: java.lang.NoClassDefFoundError: com/sun/syndication/io/WireFeedOutput
at com.ibm.ws.webcontainer.srt.SRTServletResponseContext.sendError(SRTServletResponseContext.java:162)
at com.ibm.ws.webcontainer.srt.SRTServletResponse.sendError(SRTServletResponse.java:656)
at javax.servlet.http.HttpServletResponseWrapper.sendError(HttpServletResponseWrapper.java:152)
at javax.servlet.http.HttpServletResponseWrapper.sendError(HttpServletResponseWrapper.java:152)
at com.opensymphony.module.sitemesh.filter.PageResponseWrapper.sendError(PageResponseWrapper.java:180)
at com.opensymphony.webwork.dispatcher.ServletDispatcher.sendError(ServletDispatcher.java:349)
at com.opensymphony.webwork.dispatcher.ServletDispatcher.serviceAction(ServletDispatcher.java:235)
at com.opensymphony.webwork.dispatcher.ServletDispatcher.service(ServletDispatcher.java:199)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at com.ibm.ws.webcontainer.servlet.StrictServletInstance.doService(StrictServletInstance.java:110)
at com.ibm.ws.webcontainer.servlet.StrictLifecycleServlet._service(StrictLifecycleServlet.java:174)
at com.ibm.ws.webcontainer.servlet.IdleServletState.service(StrictLifecycleServlet.java:313)
at com.ibm.ws.webcontainer.servlet.StrictLifecycleServlet.service(StrictLifecycleServlet.java:116)
at com.ibm.ws.webcontainer.servlet.ServletInstance.service(ServletInstance.java:283)
at com.ibm.ws.webcontainer.servlet.ValidServletReferenceState.dispatch(ValidServletReferenceState.java:42)
at com.ibm.ws.webcontainer.servlet.ServletInstanceReference.dispatch(ServletInstanceReference.java(Inlined Compiled Code))
at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java(Compiled Code))
at com.opensymphony.module.sitemesh.filter.PageFilter.parsePage(PageFilter.java:118)
at com.atlassian.confluence.util.profiling.ProfilingPageFilter.parsePage(ProfilingPageFilter.java:150)
at com.opensymphony.module.sitemesh.filter.PageFilter.doFilter(PageFilter.java:52)
at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java(Compiled Code))
at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java(Compiled Code))
at com.atlassian.confluence.util.UserThreadLocalFilter.doFilter(UserThreadLocalFilter.java:46)
at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java(Compiled Code))
at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java(Compiled Code))
at com.atlassian.seraph.filter.SecurityFilter.doFilter(SecurityFilter.java:182)
at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java(Compiled Code))
at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java(Compiled Code))
at com.atlassian.seraph.filter.LoginFilter.doFilter(LoginFilter.java:177)
at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java(Compiled Code))
at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java(Compiled Code))
at com.atlassian.johnson.filters.JohnsonFilter.doFilter(JohnsonFilter.java:96)
at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java(Compiled Code))
at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java(Compiled Code))
at org.springframework.orm.hibernate.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:170)
at bucket.custom.FlushingSpringSessionInViewFilter.doFilterInternal(FlushingSpringSessionInViewFilter.java:31)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:73)
at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java(Compiled Code))
at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java(Compiled Code))
at com.atlassian.util.profiling.filters.ProfilingFilter.doFilter(ProfilingFilter.java:132)
at com.atlassian.confluence.util.error.ProfilingAndErrorFilter.doFilter(ProfilingAndErrorFilter.java:27)
at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java(Compiled Code))
at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java(Compiled Code))
at com.atlassian.core.filters.gzip.GzipFilter.doFilter(GzipFilter.java:61)
at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java(Compiled Code))
at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java(Compiled Code))
at com.atlassian.core.filters.AbstractEncodingFilter.doFilter(AbstractEncodingFilter.java:37)
at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java(Compiled Code))
at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java(Compiled Code))
at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.handleWebAppDispatch(WebAppRequestDispatcher.java:1040)
at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.dispatch(WebAppRequestDispatcher.java:600)
at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.forward(WebAppRequestDispatcher.java:201)
at com.ibm.ws.webcontainer.srt.WebAppInvoker.doForward(WebAppInvoker.java:125)
at com.ibm.ws.webcontainer.srt.WebAppInvoker.handleInvocationHook(WebAppInvoker.java:286)
at com.ibm.ws.webcontainer.cache.invocation.CachedInvocation.handleInvocation(CachedInvocation.java:71)
at com.ibm.ws.webcontainer.cache.invocation.CacheableInvocationContext.invoke(CacheableInvocationContext.java:116)
at com.ibm.ws.webcontainer.srp.ServletRequestProcessor.dispatchByURI(ServletRequestProcessor.java:186)
at com.ibm.ws.webcontainer.oselistener.OSEListenerDispatcher.service(OSEListener.java:334)
at com.ibm.ws.webcontainer.http.HttpConnection.handleRequest(HttpConnection.java:56)
at com.ibm.ws.http.HttpConnection.readAndHandleRequest(HttpConnection.java:624)
at com.ibm.ws.http.HttpConnection.run(HttpConnection.java:448)
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java(Compiled Code))

Referer URL: Unknown

Build Information:
Confluence Home: /usr/local/confluence
Uptime: 5 hours, 13 minutes
Version: 2.0
Build Number: 320

Server Information:
Application Server: IBM WebSphere Application Server/5.1
Servlet Version: 2.3
Database Dialect: net.sf.hibernate.dialect.SQLServerDialect

Memory Information:
Total Memory: 230 MB
Free Memory: 84 MB
Used Memory: 146 MB

System Information:
System Date: Wednesday, 23 Nov 2005
System Time: 15:51:41
System Favourite Colour: Chartreuse
Java Version: 1.4.2
Java Vendor: IBM Corporation
JVM Version: 1.0
JVM Vendor: Sun Microsystems Inc.
JVM Implementation Version: 1.4.2
Java Runtime: Java(TM) 2 Runtime Environment, Standard Edition
Java VM: Classic VM
User Name: root
User Timezone: GB
Operating System: Linux 2.4.21-292-smp
OS Architecture: x86
Request

Information:
URL: http://ukapps/kb/500page.jsp

• Scheme: http
• Server: ukapps
• Port: 80
• URI: /kb/500page.jsp
• - Context Path: /kb
• - Servlet Path: /500page.jsp
• - Path Info: null
• - Query String: types=page&types=blogpost&types=mail&types=comment&types=attachment&statuses=created&statuses=modified&spaces=&labelString=&rssType=rss2&maxResults=10&timeSpan=5&publicFeed=false&title=Dolby+WB+Knowledgebase+RSS+Feed&os_authType=basic

Attributes:

• javax.servlet.error.message : java.lang.NoClassDefFoundError: com/sun/syndication/io/WireFeedOutput
• javax.servlet.error.exception : bucket.core.InfrastructureException: java.lang.NoClassDefFoundError: com/sun/syndication/io/WireFeedOutput
• ErrorReport : com.ibm.ws.webcontainer.webapp.WebAppErrorReport: java.lang.NoClassDefFoundError: com/sun/syndication/io/WireFeedOutput
• os_securityfilter_already_filtered : true
• com.atlassian.johnson.filters.JohnsonFilter_already_filtered : true
• com.ibm.servlet.engine.webapp.dispatch_nested : true
• javax.servlet.error.request_uri : /kb/createrssfeed.action
• javax.servlet.error.status_code : 500
• _sitemesh_filterapplied : true
• os_authstatus : null
• javax.servlet.error.servlet_name : action
• webwork.valueStack : com.opensymphony.xwork.util.OgnlValueStack@68da769
• atlassian.core.seraph.original.url : /createrssfeed.action?types=page&types=blogpost&types=mail&types=comment&types=attachment&statuses=created&statuses=modified&spaces=&labelString=&rssType=rss2&maxResults=10&timeSpan=5&publicFeed=false&title=Dolby+WB+Knowledgebase+RSS+Feed&os_authType=basic
• loginfilter.already.filtered : true
• javax.servlet.jsp.jspException : com.ibm.ws.webcontainer.webapp.WebAppErrorReport: java.lang.NoClassDefFoundError: com/sun/syndication/io/WireFeedOutput
• sessioninview.FILTERED : true
• com.ibm.servlet.engine.webapp.dispatch_type : forward
• com.atlassian.core.filters.gzip.GzipFilter_already_filtered : true

Parameters:

• timeSpan = 5
• rssType = rss2
• statuses = created, modified
• labelString =
• publicFeed = false
• maxResults = 10
• types = page, blogpost, mail, comment, attachment
• spaces =
• title = Dolby WB Knowledgebase RSS Feed
• os_authType = basic

Logging:
1 log statements generated by this request:

[ERROR] Wed Nov 23 15:51:41 GMT 2005 [com.atlassian.confluence.util.XWorkTransactionInterceptor] Invoking rollback for transaction on action '/createrssfeed.action (CreateRssFeedAction.execute())' due to throwable: java.lang.NoClassDefFoundError: com/sun/syndication/io/WireFeedOutput
Throwable:
java.lang.NoClassDefFoundError: com/sun/syndication/io/WireFeedOutput
at com.atlassian.confluence.core.actions.RssResult.doExecute(RssResult.java:40)
at com.opensymphony.webwork.dispatcher.WebWorkResultSupport.execute(WebWorkResultSupport.java:116)
at com.opensymphony.xwork.DefaultActionInvocation.executeResult(DefaultActionInvocation.java:263)
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java(Compiled Code))
at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java(Compiled Code))
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java(Compiled Code))
at com.atlassian.confluence.security.actions.PermissionCheckInterceptor.intercept(PermissionCheckInterceptor.java:40)
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java(Compiled Code))
at com.atlassian.confluence.pages.actions.PageAwareInterceptor.intercept(PageAwareInterceptor.java:94)
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java(Compiled Code))
at com.atlassian.confluence.spaces.actions.SpaceAwareInterceptor.intercept(SpaceAwareInterceptor.java:82)
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java(Compiled Code))
at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java(Compiled Code))
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java(Compiled Code))
at com.atlassian.confluence.core.ConfluenceAutowireInterceptor.intercept(ConfluenceAutowireInterceptor.java:25)
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java(Compiled Code))
at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java(Compiled Code))
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java(Compiled Code))
at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java(Compiled Code))