How can I read the response using the jersey client

Asked Nov 23 '18 at 13:27

Active Nov 29 '18 at 14:46

Viewed 145 times

I have seen examples (and they work with other objects, like String)

How to get list<String> as response from jersey2 client

So, I have a method that response to my endpoint like this:

 return Response.ok(new CustomDto<>(param1, param2)).build();

You can notice the <>

so the class lookes like this:

public class CustomDto<T extends OtherDto> extends PaginatorDto<T> {
...
}

So for my test I did this...

CustomDto resultPaginator = response.readEntity(CustomDto.class);

So I get this error

Caused by: com.fasterxml.jackson.databind.exc.InvalidDefinitionException: Cannot construct instance of `CustomDto` (no Creators, like default construct, exist): cannot deserialize from Object value (no delegate- or property-based Creator)

The class has no basic constructor (and I cannot add one)

Any idea how to get the results using this class?

Thanks

edited Nov 29 '18 at 14:46

Dzmitry Bahdanovich

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asked Nov 23 '18 at 13:27

jpganz18

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Can you alter the class? If so, use a `@JsonCreator` constructor. If not, use a Jackson Mixin. – Paul Samsotha Nov 23 '18 at 23:12
Hello, no, I cannot alter the class – jpganz18 Nov 24 '18 at 15:59
1

could you be more specific or give an example? – jpganz18 Nov 25 '18 at 13:04
4

https://reachmnadeem.wordpress.com/2016/09/23/jackson-mixin-to-the-rescue/ – Paul Samsotha Nov 25 '18 at 15:56
Why did you put the bounty? Did you not figure out how to do it with the Mixin examples I linked to? Or does it not work, even with the Mixin? – Paul Samsotha Nov 27 '18 at 06:58
I dont know how to do without modifying the constructor – jpganz18 Nov 27 '18 at 13:14
Use the Mixin. You don't need to modify the constructor. You make a separate Mixin class. Look at the link. – Paul Samsotha Nov 27 '18 at 17:54
Hey, so did you get it to work? Do you have any follow up questions? – Paul Samsotha Dec 01 '18 at 07:25

How can I read the response using the jersey client

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