java - Jersey/Jackson Exception problem with ExceptionMapper -

i'm using jersey provide java rest service outside world. offer functions take json , use jackson framework in combination jersey convert them pojos.

i have problem if wrong jackson format sent server, answer (content of http response) jackson specific exception description. if have pojo attribute "surname" , send "sursname" in json string server, get:

unrecognized field "sursname" (class xy), not marked ignorable @ [source: sun.net.httpserver.fixedlengthinputstream@903025; line: 1, column: 49] (through reference chain: xy["sursname"]) 

thats quite ok, have own response content, example own error code. wrote custom exceptionmapper should map throwables.

@provider public class webserviceexceptionmapper implements exceptionmapper<throwable> {  @override public response toresponse(exception e) {     e.printstacktrace();     return response.status(400).entity("{\"errorcode\":\"critical_error\"}").type(mediatype.application_json).build();     } } 

it seems jackson exception thrown before webservice method called, have no chance map it?

does have idea? big und sorry english ;)

the reason custom exceptionmapper doesn't catch exceptions because jackson library provides own exception mappers, catches exception before catched genereal exception mapper.

some suggest should implement own exception mappers jsonparseexceptionmapper , jacksonmappingexceptionmapper, that, however, give inconsistent results. see issue on github.

to solve problem, must make sure none of built-in exception mappers registered. if you're using jackson-jaxrs-providers library json: jackson-jaxrs-json-provider, make sure only registering either jacksonjaxbjsonprovider.class or jacksonjsonprovider.class in application class:

public class myapplication extends resourceconfig {     public myapplication() {         register(jacksonjaxbjsonprovider.class)     } } 

be aware of jacksonfeature.class, registers built in exceptionmappers. stay away jersey-media-json-jackson library, automatically add built in exception mappers, without having @ all.