Highlighted

customize RSS feed

priyad71518433

15-11-2017

Hi

I have customized /cq/page/feed.jsp per our requirement. Though I am getting following error

at the end of the feed.

<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">

<html>

  <head><title>500 STREAM</title></head>

  <body>

  <h1>STREAM</h1>

  <p>Cannot serve request to **************.feed on this server</p>

  

  

  

  <hr>

  <address>ApacheSling/2.4 (jetty/9.2.14.v20151106, Java HotSpot(TM) 64-Bit Server VM 1.8.0_144, Windows 10 10.0 amd64)</address>

  </body>

</html>

I have been debugging it and not able to find out the reason. Has anyone come across same situation?

Thanks in advance

- Pari

Replies

Highlighted

mjb54261515

15-11-2017

Hi Pari,

This general use case RSS 2.0 . When creating your RSS feed body should not have any html or special chars. If not it will throw multiple errors when rendering on the page.

Your custom log should handle cleaning up or generating correct body for the feed.

Here is RSS feed validator. You can test your feeds generated with below link

W3C Feed Validation Service, for Atom and RSS

~Manoj

Highlighted

priyad71518433

15-11-2017

Thanks Manoj

I added following statement in jsp

slingResponse.getOutputStream().close();

This removed error from front end but I still see following error in error.logs  Why is it happening not sure

org.apache.sling.engine.impl.SlingRequestProcessorImpl service: Uncaught SlingException

java.lang.IllegalStateException: STREAM

at org.eclipse.jetty.server.Response.getWriter(Response.java:910)

at javax.servlet.ServletResponseWrapper.getWriter(ServletResponseWrapper.java:103)

at javax.servlet.ServletResponseWrapper.getWriter(ServletResponseWrapper.java:103)

at org.apache.sling.engine.impl.log.RequestLoggerResponse.getWriter(RequestLoggerResponse.java:124)

at javax.servlet.ServletResponseWrapper.getWriter(ServletResponseWrapper.java:103)

at org.apache.sling.engine.impl.SlingHttpServletResponseImpl.getWriter(SlingHttpServletResponseImpl.java:128)

at javax.servlet.ServletResponseWrapper.getWriter(ServletResponseWrapper.java:103)

at org.apache.sling.rewriter.impl.RewriterResponse.getWriter(RewriterResponse.java:115)

at javax.servlet.ServletResponseWrapper.getWriter(ServletResponseWrapper.java:103)

at org.apache.sling.scripting.core.impl.helper.OnDemandWriter.getWriter(OnDemandWriter.java:38)

at org.apache.sling.scripting.core.impl.helper.OnDemandWriter.write(OnDemandWriter.java:61)

at java.io.PrintWriter.write(Unknown Source)

at org.apache.sling.scripting.jsp.jasper.runtime.JspWriterImpl.flushBuffer(JspWriterImpl.java:119)

at org.apache.sling.scripting.jsp.jasper.runtime.PageContextImpl.release(PageContextImpl.java:191)

at org.apache.sling.scripting.jsp.jasper.runtime.JspFactoryImpl.internalReleasePageContext(JspFactoryImpl.java:99)

at org.apache.sling.scripting.jsp.jasper.runtime.JspFactoryImpl.releasePageContext(JspFactoryImpl.java:71)

at org.apache.sling.scripting.jsp.jasper.compiler.JspRuntimeContext$JspFactoryHandler.releasePageContext(JspRuntimeContext.java:111)

at org.apache.jsp.apps.cq.Page.feed_jsp._jspService(feed_jsp.java:384)

at org.apache.sling.scripting.jsp.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:725)

at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:502)

at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:449)

at org.apache.sling.scripting.jsp.JspScriptEngineFactory.callJsp(JspScriptEngineFactory.java:284)

at org.apache.sling.scripting.jsp.JspScriptEngineFactory.access$100(JspScriptEngineFactory.java:102)

at org.apache.sling.scripting.jsp.JspScriptEngineFactory$JspScriptEngine.eval(JspScriptEngineFactory.java:536)

at org.apache.sling.scripting.core.impl.DefaultSlingScript.call(DefaultSlingScript.java:388)

at org.apache.sling.scripting.core.impl.DefaultSlingScript.eval(DefaultSlingScript.java:184)

at org.apache.sling.scripting.core.impl.DefaultSlingScript.service(DefaultSlingScript.java:491)

at org.apache.sling.engine.impl.request.RequestData.service(RequestData.java:546)

at org.apache.sling.engine.impl.filter.SlingComponentFilterChain.render(SlingComponentFilterChain.java:44)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:77)

at com.day.cq.personalization.impl.TargetComponentFilter.doFilter(TargetComponentFilter.java:96)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.day.cq.wcm.core.impl.WCMDebugFilter.doFilter(WCMDebugFilter.java:151)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.day.cq.wcm.core.impl.WCMComponentFilter.filterRootInclude(WCMComponentFilter.java:362)

at com.day.cq.wcm.core.impl.WCMComponentFilter.doFilter(WCMComponentFilter.java:177)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at org.apache.sling.engine.impl.SlingRequestProcessorImpl.processComponent(SlingRequestProcessorImpl.java:282)

at org.apache.sling.engine.impl.filter.RequestSlingFilterChain.render(RequestSlingFilterChain.java:49)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:77)

at com.adobe.cq.social.ugcbase.security.impl.SaferSlingPostServlet.doFilter(SaferSlingPostServlet.java:114)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.day.cq.dam.core.impl.assetlinkshare.AdhocAssetShareAuthHandler.doFilter(AdhocAssetShareAuthHandler.java:381)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.day.cq.dam.core.impl.servlet.ActivityRecordHandler.doFilter(ActivityRecordHandler.java:155)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:73)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:73)

at com.adobe.granite.requests.logging.impl.RequestLoggerImpl.doFilter(RequestLoggerImpl.java:127)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.adobe.granite.csrf.impl.CSRFFilter.doFilter(CSRFFilter.java:220)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at org.apache.sling.security.impl.ContentDispositionFilter.doFilter(ContentDispositionFilter.java:181)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.day.cq.wcm.core.impl.AuthoringUIModeServiceImpl.doFilter(AuthoringUIModeServiceImpl.java:367)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.day.cq.wcm.core.impl.warp.TimeWarpFilter.doFilter(TimeWarpFilter.java:106)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.day.cq.wcm.mobile.core.impl.redirect.RedirectFilter.doFilter(RedirectFilter.java:248)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.katerra.www.core.filters.LoggingFilter.doFilter(LoggingFilter.java:50)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at org.apache.sling.engine.impl.debug.RequestProgressTrackerLogFilter.doFilter(RequestProgressTrackerLogFilter.java:95)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.day.cq.analytics.provisioning.impl.UserAuthenticationRequestFilter.doFilter(UserAuthenticationRequestFilter.java:119)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.adobe.cq.social.commons.cors.CORSAuthenticationFilter.doFilter(CORSAuthenticationFilter.java:91)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.day.cq.wcm.foundation.forms.impl.FormsHandlingServlet.doFilter(FormsHandlingServlet.java:285)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.adobe.granite.optout.impl.OptOutFilter.doFilter(OptOutFilter.java:74)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.adobe.cq.history.impl.HistoryRequestFilter.doFilter(HistoryRequestFilter.java:107)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.day.cq.wcm.core.impl.WCMRequestFilter.doFilter(WCMRequestFilter.java:90)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.adobe.cq.mcm.campaign.servlets.CampaignCopyTracker.doFilter(CampaignCopyTracker.java:100)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at org.apache.sling.rewriter.impl.RewriterFilter.doFilter(RewriterFilter.java:83)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.adobe.granite.httpcache.impl.InnerCacheFilter.doFilter(InnerCacheFilter.java:77)

at com.adobe.granite.httpcache.impl.InnerCacheFilter.doFilter(InnerCacheFilter.java:56)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at org.apache.sling.i18n.impl.I18NFilter.doFilter(I18NFilter.java:129)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.adobe.granite.rest.impl.servlet.ApiResourceFilter.doFilter(ApiResourceFilter.java:67)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at org.apache.sling.bgservlets.impl.BackgroundServletStarterFilter.doFilter(BackgroundServletStarterFilter.java:169)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.adobe.granite.resourceresolverhelper.impl.ResourceResolverHelperImpl.doFilter(ResourceResolverHelperImpl.java:84)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at org.apache.sling.engine.impl.SlingRequestProcessorImpl.doProcessRequest(SlingRequestProcessorImpl.java:151)

at org.apache.sling.engine.impl.SlingMainServlet.service(SlingMainServlet.java:216)

at org.apache.felix.http.base.internal.handler.ServletHandler.handle(ServletHandler.java:85)

at org.apache.felix.http.base.internal.dispatch.InvocationChain.doFilter(InvocationChain.java:79)

at com.adobe.granite.license.impl.LicenseCheckFilter.doFilter(LicenseCheckFilter.java:308)

at org.apache.felix.http.base.internal.handler.FilterHandler.handle(FilterHandler.java:135)

at org.apache.felix.http.base.internal.dispatch.InvocationChain.doFilter(InvocationChain.java:74)

at org.apache.felix.http.sslfilter.internal.SslFilter.doFilter(SslFilter.java:89)

at org.apache.felix.http.base.internal.handler.FilterHandler.handle(FilterHandler.java:135)

at org.apache.felix.http.base.internal.dispatch.InvocationChain.doFilter(InvocationChain.java:74)

at org.apache.sling.security.impl.ReferrerFilter.doFilter(ReferrerFilter.java:290)

at org.apache.felix.http.base.internal.handler.FilterHandler.handle(FilterHandler.java:135)

at org.apache.felix.http.base.internal.dispatch.InvocationChain.doFilter(InvocationChain.java:74)

at org.apache.sling.i18n.impl.I18NFilter.doFilter(I18NFilter.java:129)

at org.apache.felix.http.base.internal.handler.FilterHandler.handle(FilterHandler.java:135)

at org.apache.felix.http.base.internal.dispatch.InvocationChain.doFilter(InvocationChain.java:74)

at org.apache.sling.featureflags.impl.FeatureManager.doFilter(FeatureManager.java:116)

at org.apache.felix.http.base.internal.handler.FilterHandler.handle(FilterHandler.java:135)

at org.apache.felix.http.base.internal.dispatch.InvocationChain.doFilter(InvocationChain.java:74)

at org.apache.sling.engine.impl.log.RequestLoggerFilter.doFilter(RequestLoggerFilter.java:75)

at org.apache.felix.http.base.internal.handler.FilterHandler.handle(FilterHandler.java:135)

at org.apache.felix.http.base.internal.dispatch.InvocationChain.doFilter(InvocationChain.java:74)

at org.apache.felix.http.base.internal.dispatch.Dispatcher.dispatch(Dispatcher.java:124)

at org.apache.felix.http.base.internal.DispatcherServlet.service(DispatcherServlet.java:61)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:725)

at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:812)

at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:587)

at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:221)

at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)

at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)

at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)

at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)

at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)

at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:215)

at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)

at org.eclipse.jetty.server.Server.handle(Server.java:499)

at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:311)

at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257)

at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:544)

at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)

at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)

at java.lang.Thread.run(Unknown Source)

-- Pari