MessageBodyWriter not found for media type application/json

Question

I'm getting the following error in my logs:

org.glassfish.jersey.message.internal.WriterInterceptorExecutor$TerminalWriterInterceptor aroundWriteTo
Grave: MessageBodyWriter not found for media type=application/json, type=class com.sample.MyDTO, genericType=class com.sample.MyDTO.

In general, it is caused by the lack of registered MessageBodyWriter but in my case, I do have the jersey-media-proxy JAR on the classpath (with all its dependencies). If that helps debugging, I confirm that the configure method of the MoxyJsonFeature is called when my web application is deployed.

I precise I'm using Jersey v2.21. My web application is deployed on Tomcat 8.0.26.

Any idea?

Thanks, Mickael

Answer 1

It took me a while to figure it out, but you let me to the solution. It appears that for Moxy to work you need use a:

1. Default constructor
2. Setter methods

for every resource