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https://issues.apache.org/jira/browse/ABDERA-142?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12586094#action_12586094
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Joseph Pecoraro commented on ABDERA-142:
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That makes sense, Thanks!

> ClassCastException when trying to get a Service Document
> --------------------------------------------------------
>
>                 Key: ABDERA-142
>                 URL: https://issues.apache.org/jira/browse/ABDERA-142
>             Project: Abdera
>          Issue Type: Bug
>    Affects Versions: 0.2.2
>         Environment: Windows XP Java 1.4.2 and Java 5.
> Abdera 0.2 and 0.2.2.
>            Reporter: Joseph Pecoraro
>             Fix For: 0.2.2
>
>
> I get a ClassCastException when trying to pull a Service Document.  The 
> CommonsClient correctly pulls the Service Document for the server and the 
> Service Document is valid.  I will point out right now that this works just 
> fine in Abdera 0.3.
> Example Error:
> java.lang.ClassCastException: 
> org.apache.abdera.parser.stax.FOMExtensibleElement incompatible with 
> org.apache.abdera.model.Service
> Example Main to get the above error: [meant to be dirty but short]
> public static void main(String[] args) {
>               ClientResponse _response = null;
>               try {
>                       Abdera _abdera = new Abdera();
>                       CommonsClient _client = new CommonsClient(_abdera);
>                       _client.usePreemptiveAuthentication(true);
>                       _client.addCredentials("https://dogear.tap.ibm.com";, 
> null, null, new UsernamePasswordCredentials("username", "password"));
>                       CommonsClient.registerTrustManager();
>                       _response = 
> _client.get("https://dogear.tap.ibm.com/api/app";);
>                       if(_response != null && _response.getStatus() == 200) {
>                       InputStream in = _response.getInputStream();
>                       if( in != null ) {
>                               Document<Service> doc = 
> _abdera.getParser().parse(in);
>                               Service aService = (Service)doc.getRoot();
>                       }
>             }  
>         }
>         catch(Exception e) { e.printStackTrace(); } 
>         finally { _response.release(); }
> }
> More Information:
> If I take the same code and instead grab a Feed instead of a Service Document 
> using a Feed URL (such as 
> https://dogear.tap.ibm.com/api/app?email=jjpecora%40us.ibm.com) and change 
> all occurrences of "Service" to "Feed" it runs without any issues and the 
> Feed is loaded properly  The same can be done with an Entry just like a Feed.
> If I take the same code and instead use Abdera 0.3 (and replace all instances 
> of "CommonsClient" with "AbderaClient") it runs without any issues.
> I have tried multiple Service Documents and the error persists.  I manually 
> read and scanned the InputStream for abnormalities that I thought might have 
> affected the Parser and it looks like a perfectly valid Atom Service Document.

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