[OLINGO-1399] Alternate keys - Can not write a field name, expecting a value

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: (Java) V4 4.6.0
• Component/s: odata4-server
• Assignee: Unassigned
• Reporter: Ian
• Created: 24/Sep/19 13:01
• Updated: 24/Sep/19 13:01

Description

I'm attempting to create an alternate key annotation but it fails when generating the json document.

Trying to create annotation that is similar to the following.

https://docs.microsoft.com/en-us/powerapps/developer/common-data-service/webapi/web-api-types-operations#bkmk_alternateKeys

I received the error "An I/O exception occurred" which is created by the "Can not write a field name, expecting a value" error.

This seems like a bugr or I'm not implementing the Alternate keys correctly. I could not locate any samples for Olingo and Alternate keys annotation.

I have created a quick patch for one of the unit test that seem to reproduce the problem.  I was not sure where this unit test should really go - so feel free to move it.