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https://issues.apache.org/jira/browse/OLINGO-463?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14174658#comment-14174658
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David A. Ventimiglia commented on OLINGO-463:
---------------------------------------------
Example code that provokes the problem
{code:java}
EntityType e = new EntityType();
e.setDocumentation(new Documentation());
{code}
Create entities like these, with Documentation elements that lack a
LongDescription and/or Summary, add them to your Schema, then request the Atom
XML metadata document, and you will get this NPE.
> Olingo Java V2 and EntityType.Documentation rendering problem
> -------------------------------------------------------------
>
> Key: OLINGO-463
> URL: https://issues.apache.org/jira/browse/OLINGO-463
> Project: Olingo
> Issue Type: Bug
> Components: odata2-core
> Affects Versions: V2 2.0.0
> Reporter: David A. Ventimiglia
>
> In Olingo Java V2, the class
> org.apache.olingo.odata2.core.ep.producer.XmlMetadataProducer has the method
> writeDocumentation, and in that method on line 582 (at least in the source
> that I downloaded), it calls writeCharacters in the class
> javax.xml.stream.XMLStreamWriter and passes in
> documentation.getLongDescription without anticipating the possibility taht
> the longDescription will be null. I think this is a bug, because the OData
> v2.0 spec says that a Documentation element CAN specify a LongDescription, no
> that it MUST specify a LongDescription. Likewise with the Summary. I could
> be wrong about this, but as far as I can tell, this is a bug.
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