com.sap.cloud.server.odata.core.UndefinedException while using filter with expanded entity

[ashishjain14]

Hi,

While running the following query

/ProductSet?$expand=SellerDetails&$filter=SellerDetails/FullName eq `Seller1` 

I get the following error

com.sap.cloud.server.odata.core.UndefinedException: Cannot get property 'SellerDetails' of type 'mykartns.Seller' in entity type 'mykartns.Product', because the value is not set. This exception occurs because an undefined property is considered distinct from a null property (regardless of whether or not the property is defined as nullable in the service metadata). The attempt to access an undefined property may be evidence of a flaw in this client application (trying to access properties in a query result without having requested for the server to return values for the properties, or trying to access property values before initializing them), or may be evidence of a flaw in the service implementation (failing to return properties that were requested by the client application using $select or $expand). Depending on the root cause, options to avoid this exception include: (1) Using DataQuery.expand before executing a query (or in the query parameter to DataService.loadEntity) to ensure that navigation properties are requested from the server before trying to access them; (2) Using DataService.loadProperty to ensure that navigation properties are requested from the server before trying to access them; (3) Getting the service implementer to fix the service if it is unexpectedly omitting expected property values in responses; (4) Initializing all properties in newly created objects before trying to access the properties (using the 'setDefaultValues' function, or by specifying 'true' for the 'withDefaults' parameter of the proxy class constructor); (5) Using the 'hasDataValue' function to check if properties are defined before trying to access them; (6) With the dynamic API, using the 'getOptionalValue' function instead of using the 'getDataValue' function.

Attaching the metadata.txt for reference

Regards,

Ashish

metadata.txt