[OLINGO-1395] EDM parsing error when ReturnType element contains Annotation

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: (Java) V4 4.6.0
• Component/s: odata4-client
• Labels: metadata odata4 parsing
• Assignee: Unassigned
• Reporter: Daniel Fernández
• Created: 10/Sep/19 09:21
• Updated: 27/Nov/19 07:31

Description

Description

The current EDM parsing infrastructure does not take into account the possibility that a <ReturnType> element contains an <Annotation>.

This causes that a structure such as this (from a Cognos TM1 service):

<ReturnType Type="tm1.Hierarchy" Nullable="false">
	<Annotation Term="Core.Description">
		<String>The newly created all leaves hierarchy.</String>
	</Annotation>
</ReturnType>

...ends up messing the close tags, and closing the element containing the <ReturnType> before it should, causing the rest of the EDM to be ignored and the service being inaccessible.

Cause

The cause seems to be that the parsing code in the org.apache.olingo.client.core.edm.xml.ClientCsdlReturnType class does not include Annotation among the possible elements contained inside a ReturnType.

As can be seen in the spec at https://docs.oasis-open.org/odata/odata-csdl-xml/v4.01/csprd05/odata-csdl-xml-v4.01-csprd05.html#sec_ReturnType, the edm:ReturnType element may contain edm:Annotation elements.

Issue Links

• links to: GitHub Pull Request #55