[OLINGO-721] Removing links between the entities throws exception

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: V2 2.0.4
• Fix Version/s: V2 2.0.5
• Component/s: odata2-jpa
• Assignee: Chandan V.A
• Reporter: Madhuri Muthyalu
• Created: 03/Jul/15 06:28
• Updated: 19/Sep/16 12:46
• Resolved: 04/Jul/15 03:17

Description

Consider 2 entities A and B, there is a bidirectional association between these entities(A to B and B to A).

Created an association between these entities via $links refer the below URI
<root-url>/B(5001L)/$links/ADetails with the request payload as

{ "uri":"A(4901L)" }

and the association gets created able to retrieve this data via $expand

Now tried to remove this association via $links with the HTTP DELETE request refer to the following URI
<root-url>/A(4901L)/$links/BDetails(5001L)
Get an exception "Object: null is not a known Entity type."

here is the excerpt stack trace
stacktrace": [

{ "class": "org.eclipse.persistence.internal.jpa.EntityManagerImpl", "method": "contains", "line": 1077 }

,

{ "class": "org.apache.olingo.odata2.jpa.processor.core.access.data.JPALink", "method": "save", "line": 164 }

,

{ "class": "org.apache.olingo.odata2.jpa.processor.core.access.data.JPAProcessorImpl", "method": "deleteLink", "line": 525 }

,

{ "class": "org.apache.olingo.odata2.jpa.processor.core.access.data.JPAProcessorImpl", "method": "process", "line": 336 }

,

{ "class": "org.apache.olingo.odata2.jpa.processor.core.ODataJPAProcessorDefault", "method": "deleteEntityLink", "line": 237 }

,

{ "class": "org.apache.olingo.odata2.core.Dispatcher", "method": "dispatch", "line": 165 }

,

{ "class": "org.apache.olingo.odata2.core.ODataRequestHandler", "method": "handle", "line": 129 }

,

{ "class": "org.apache.olingo.odata2.core.rest.ODataSubLocator", "method": "handle", "line": 167 }

,

{ "class": "org.apache.olingo.odata2.core.rest.ODataSubLocator", "method": "handleDelete", "line": 78 }

,

{ "class": "sun.reflect.NativeMethodAccessorImpl", "method": "invoke0", "line": -2 }

,

{ "class": "sun.reflect.NativeMethodAccessorImpl", "method": "invoke", "line": -1 }

,
{}.....]