Type cast error: Can't convert 'class java.math.BigInteger' to 'class java.lang.Long'

[alvachien]

Create a very simply model class:

@Entity
@Table(name = "book_ctgy_def")
public class BookCategory {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY) 
    @Column(name = "id")
    private Long id;

...
}

The database column created as

id bigint,

Access it via http://[localhost:9010/apis/v1/BookCategories, the error thrown:

{"error":{"code":null,"message":"Type cast error: Can't convert 'class java.math.BigInteger' to 'class java.lang.Long'. @Convert required"}}

The same model works with Olingo itself without 'olingo-jpa-processor-v4'.

[wog48]

The TypeConverter currently not supporting this conversion.
I like to point out that it is usually it is risky to map a data type that can take lager number than the data type it shall be mappped to.

[wog48]

Additional mappings have been added to TypeConverter