@Path("/myrequest")
@POST
@Consumes({MediaType.TEXT_PLAIN})
public Response method(@DefaultValue("mike") @QueryParam("name") String name, @DefaultValue("0") @PathParam("age") Integer age) {
...
} 

I knew that if some of the parameters is not received

 

        .../myrequest?name=jack&age=20

 

you get the default value instead so if I call myrequest without parameters I'll get "name" and 0 as String and Integer values respectively

 

Now, if the method is invoked like

 

.../myrequest?name=jack&age=null

 

The default value is never aplied and you will get a 404 Not Found error, why is htis?  What it forced me to do as a quick fix was to declare age parameter as String and do the casting manually with an extra check.

 

After a detailed review of the documentation I found this behavior.

 

I really would like to have a default value being used if the Type cast is not possible instead of a non informative 404 error.

 

Please share your ideas about it