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https://issues.apache.org/jira/browse/TUSCANY-3111?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12722319#action_12722319
]
Mark Combellack commented on TUSCANY-3111:
------------------------------------------
NP exception fixed in SVN revision 786955.
Now get the following exception when accessing the feed in my web browser:
javax.servlet.ServletException: com.sun.syndication.io.FeedException: Invalid
rss_2.0 feed, missing channel description
org.apache.tuscany.sca.binding.rss.provider.RSSBindingListenerServlet.doGet(RSSBindingListenerServlet.java:188)
javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
root cause
com.sun.syndication.io.FeedException: Invalid rss_2.0 feed, missing channel
description
com.sun.syndication.io.impl.RSS090Generator.checkNotNullAndLength(RSS090Generator.java:127)
com.sun.syndication.io.impl.RSS092Generator.checkChannelConstraints(RSS092Generator.java:138)
com.sun.syndication.io.impl.RSS090Generator.addChannel(RSS090Generator.java:96)
com.sun.syndication.io.impl.RSS091UserlandGenerator.addChannel(RSS091UserlandGenerator.java:77)
com.sun.syndication.io.impl.RSS091UserlandGenerator.populateFeed(RSS091UserlandGenerator.java:73)
com.sun.syndication.io.impl.RSS090Generator.generate(RSS090Generator.java:56)
com.sun.syndication.io.WireFeedOutput.outputJDom(WireFeedOutput.java:193)
com.sun.syndication.io.WireFeedOutput.output(WireFeedOutput.java:133)
com.sun.syndication.io.SyndFeedOutput.output(SyndFeedOutput.java:97)
org.apache.tuscany.sca.binding.rss.provider.RSSBindingListenerServlet.doGet(RSSBindingListenerServlet.java:186)
javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
> NullPointerException thrown when using RSS binding on a Java component
> implementation class that does not have a get() method
> -----------------------------------------------------------------------------------------------------------------------------
>
> Key: TUSCANY-3111
> URL: https://issues.apache.org/jira/browse/TUSCANY-3111
> Project: Tuscany
> Issue Type: Bug
> Components: Java SCA RSS Binding Extension
> Affects Versions: Java-SCA-1.5
> Environment: SVN Revision 786928
> Linux
> Reporter: Mark Combellack
> Assignee: Mark Combellack
> Fix For: Java-SCA-Next
>
>
> The RSS binding can support two types of Java implementation classes that
> * extend org.apache.tuscany.sca.binding.rss.collection.Collection
> * Do not extend org.apache.tuscany.sca.binding.rss.collection.Collection
> but have a getAll() method that uses the Tuscany Data API
> The support for this is provided in the getFeed() method of
> RSSBindingListenerServlet in the binding-rss-rome module.
> Unfortunately, currently if you attempt to add an RSS binding to a Java
> component implementation that does not have a get() method then the following
> NullPointerException is thrown:
> Exception in thread "main" java.lang.NullPointerException
> at
> org.apache.tuscany.sca.binding.rss.provider.RSSBindingListenerServlet.<init>(RSSBindingListenerServlet.java:112)
> at
> org.apache.tuscany.sca.binding.rss.provider.RSSServiceBindingProvider.start(RSSServiceBindingProvider.java:72)
> at
> org.apache.tuscany.sca.core.assembly.CompositeActivatorImpl$3.run(CompositeActivatorImpl.java:630)
> at java.security.AccessController.doPrivileged(Native Method)
> at
> org.apache.tuscany.sca.core.assembly.CompositeActivatorImpl.start(CompositeActivatorImpl.java:628)
> at
> org.apache.tuscany.sca.core.assembly.CompositeActivatorImpl.start(CompositeActivatorImpl.java:560)
> at org.apache.tuscany.sca.node.impl.NodeImpl.start(NodeImpl.java:716)
> at scatours.LaunchBlogFeedNode.main(LaunchBlogFeedNode.java:35)
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