Custom JsonMappingException Mapper not being invoked

Asked May 10 '17 at 15:40

Active May 10 '17 at 15:57

Viewed 519 times

I've created a class to override JsonMappingException. Here is my custom exception handler.

@Provider
public class JsonMappingExceptionMapper implements ExceptionMapper<JsonMappingException> {

public JsonMappingExceptionMapper(){
    System.out.println("I am called");
} 

@Override
public Response toResponse( JsonMappingException e ) {

System.out.println("Should be called");
return Response.status(Status.BAD_REQUEST).type(MediaType.TEXT_PLAIN)
                .entity("The supplied JSON contained an invalid property: " + "").build();
}
}

But this is not being invoked and instead I am getting HTTP 500 error.

Caused by: org.codehaus.jackson.map.JsonMappingException: Can not construct instance of boolean from String value '': only "true" or "false" recognized
at [Source: org.apache.cxf.transport.http.AbstractHTTPDestination$1@463a4396; line: 5, column: 20]
at org.codehaus.jackson.map.JsonMappingException.from(JsonMappingException.java:160)

I have also packaged the compiled custom ExceptionMapper class with my web application project.

public class MyApplication extends Application{
@Override
public Set<Object> getSingletons()
{
    Set<Object> singleton = new HashSet<Object>();
    singleton.add(new JsonMappingExceptionMapper());
    return singleton;
}

edited May 10 '17 at 15:57

asked May 10 '17 at 15:40

akashag26

What's the package of `JsonMappingException` you are importing in your ExceptionMapper? – Paul Samsotha May 10 '17 at 15:42
import org.codehaus.jackson.map.JsonMappingException; – akashag26 May 10 '17 at 15:44
Is the constructor of the mapper called? – Paul Samsotha May 10 '17 at 15:49
yes. But the toResponse method is not being invoked. – akashag26 May 10 '17 at 15:50
I am wondering if there is something that I need to add to web.xml? – akashag26 May 10 '17 at 15:52
I wouldn't know. I don't use CXF – Paul Samsotha May 10 '17 at 15:54
Maybe useful .. Take a look ...https://blog.dejavu.sk/2015/03/24/what-to-do-when-jax-rs-cannot-find-its-providers-aka-my-message-body-writer-is-not-used/ .. otherwise share the sample project on github .. will look at it .. – notionquest May 12 '17 at 08:29

Custom JsonMappingException Mapper not being invoked

0 Answers0