[OLINGO-1064] ComplexType is deserialized as Primitive Type if the value is NULL

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: (Java) V4 4.2.0
• Fix Version/s: (Java) V4 4.4.0
• Component/s: odata4-client, odata4-commons
• Assignee: Christian Amend
• Reporter: Punith DG
• Created: 27/Dec/16 06:34
• Updated: 12/May/17 02:46
• Resolved: 26/Apr/17 14:30

Description

The ODataClient deserializer wrongly converts the Complex Type field to Primitive Type field if the value received for the complex type is NULL.

e.g. on querying Person data from OData TripPin service (https://services.odata.org/TripPinRESTierService) I received below JSON response.

{
"@odata.context": "http://services.odata.org/TripPinRESTierService/(S(myhztseklikbg41mbg03ugk5))/$metadata#People(AddressInfo,FavoriteFeature,FirstName,HomeAddress,LastName,UserName)",
"value": [{
"FavoriteFeature": "Feature1",
"FirstName": "Angel",
"Gender": "Female",
"LastName": "Huffman",
"UserName": "angelhuffman",
"AddressInfo": [{
"Address": "55 Grizzly Peak Rd.",
"City":

{ "Name": "Butte", "CountryRegion": "United States", "Region": "MT" }

}],
"HomeAddress": null
}]
}

See that 'HomeAddress' is ComplexType of type 'Location' and received 'null' value.

Similarly, ComplexType property 'City' is deserialized as Primitive Type in the below response.

"HomeAddress":

{ "Address": null, "City": null }

When you deserialize and get an entity, the HomeAddress property of the Person entity is set to Primitive Type with null value. This could be complex type?

Metadata URL - http://tinyurl.com/gm8vomc