: Missing type id when trying to resolve subtype of abstract class

Question

I've a problem that I've been working to fix it approximately 2 days but still I didn't find any solve about that problem.

I've one concrete and two implemented class which are FilteredObjectData, CustomerFilteredObjectJson and ProductFilteredObjectJson.

The classes are below:

@JsonSubTypes({
        @JsonSubTypes.Type(value = CustomerFilteredObjectJson.class, name = "Customer"),

        @JsonSubTypes.Type(value = ProductFilteredObjectJson.class, name = "Product")}
)
public abstract class FilteredObjectData implements Serializable {
    private static final long serialVersionUID = -8746510068813833450L;
}

@Getter
@Setter
@NoArgsConstructor
public class CustomerFilteredObjectJson extends FilteredObjectData implements Serializable {

    private static final long serialVersionUID = -5827825016371137372L;
    private List<Long> cities;
    private List<Long> distiricts;
    private List<Long> channels;
    private String salesmanCode;
    private List<String> accountCodes;
    private List<String> taxNumbers;
}

@Getter
@Setter
@NoArgsConstructor
public class ProductFilteredObjectJson extends FilteredObjectData implements Serializable {

    private static final long serialVersionUID = 2310254379556207058L;
    private List<String> productCodes;
}

At the same time I'm using @vladmihalcea's hibernate-type-52 framework.

Now, when I'm trying to get data from PostgreSQL, I'm getting an error like below;

com.fasterxml.jackson.databind.exc.InvalidTypeIdException: Missing type id when trying to resolve subtype of [simple type, class io.salesart.core.entities.json.FilteredObjectData]: missing type id property 'type'
 at [Source: (String)"{"productCodes": []}"; line: 1, column: 20]

What are causes that problem? Could you please help me ?

Answer 1

I was getting same error when I using Optional class.

e.g Optional<Computer> computer = new Computer(); and storing this.saveTo(computer) directly into cache.

But when I change method arugment as this.saveTo(computer.get()); then issue solved.

Answer 2

If you create a replicating test case based on one of the existing tests found in the Hibernate Types GitHub repository, then I could take a look to see what the problem is.

Send me a Pull Request with the replicating test case and I'll investigate it afterward.