[OLINGO-931] $select does not work with JsonSerializer

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: (Java) V4 4.2.0
• Fix Version/s: (Java) V4 4.3.0
• Component/s: odata4-server
• Assignee: mibo
• Reporter: Anirban Das
• Created: 13/Apr/16 07:26
• Updated: 19/Sep/16 12:42
• Resolved: 14/Apr/16 06:27

Description

When we fire a Odata request whith $select and requested format as json
for eg
/Customer?$select=Type,CustomerName&$format=json
The OdataSerializer throws a null pointer exception. Alson Note when requesting a xml format there is no issue with the request above and gives back the result correctly

StackTrace for reference::
java.lang.NullPointerException
at org.apache.olingo.server.core.serializer.json.ODataJsonSerializer.writeEntity(ODataJsonSerializer.java:329)
at org.apache.olingo.server.core.serializer.json.ODataJsonSerializer.writeEntitySet(ODataJsonSerializer.java:273)
at org.apache.olingo.server.core.serializer.json.ODataJsonSerializer.writeExpandedNavigationProperty(ODataJsonSerializer.java:459)
at org.apache.olingo.server.core.serializer.json.ODataJsonSerializer.writeNavigationProperties(ODataJsonSerializer.java:420)
at org.apache.olingo.server.core.serializer.json.ODataJsonSerializer.writeEntity(ODataJsonSerializer.java:332)
at org.apache.olingo.server.core.serializer.json.ODataJsonSerializer.writeEntitySet(ODataJsonSerializer.java:273)
at org.apache.olingo.server.core.serializer.json.ODataJsonSerializer.entityCollection(ODataJsonSerializer.java:165)