Jersey ExceptionMapper doesn't map exceptions

Question

my Spring Boot + Jersey REST service doesn\'t work as expected.

EmailExistsException is thrown in UserController but I only receive error 500. All the time. And my e

Answer 1

I had the same problem

I just mentioned the root package on the web.xml file in <param-value> tag of <init-param>

Then It started working like charm

<servlet>
    <servlet-name>Jersey Web Application</servlet-name>
    <servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>
    <init-param>
        <param-name>jersey.config.server.provider.packages</param-name>
        <param-value>com.two95.restful</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
</servlet>

Answer 2

Have you configured custom ExceptionMapper as a jax-rs provider, and Are you sure that your exception is getting wrapped into EmailExistsException? You may have to look at this post.

JAX-RS using exception mappers

Answer 3

Answer that solved my problems:

I've put packages("package.name"); which is my root package name and exception mappers work like a charm.

@Component
@ApplicationPath("/api")
public class JerseyConfig extends ResourceConfig
{
public JerseyConfig()
{
    packages("package.name");
    register(UserController.class);
    register(TimezoneController.class);
}
}

Answer 4

If you using ExceptionMapper, you must register your exception mapper:

@Component
@Provider
public class ApiApplicationExceptionMapper implements ExceptionMapper<Exception> {

    @Override
    public Response toResponse(Exception exception) {
       ...
    }
}

In Jersey config class, scan Jersey Endpoint class with @Path annotation and custom Exception Mapper with @Provider annotation to register:

@Configuration
public class JerseyConfig extends ResourceConfig {

    @Autowired
    ApplicationContext applicationContext;

    @PostConstruct
    public void init() {
        this.registerEndpoints();
        this.registerExceptionMappers();
    }

    private void registerEndpoints() {
        Map<String, Object> beans = applicationContext.getBeansWithAnnotation(Path.class);
        for (Object apiClass : beans.values()) {
            logger.info("Jersey register: " + apiClass.getClass().getName());
            register(apiClass);
        }
    }

    private void registerExceptionMappers() {
        Map<String, Object> beans = applicationContext.getBeansWithAnnotation(Provider.class);
        for (Object exceptionMapper : beans.values()) {
            logger.info("Jersey exception mapper register: " + exceptionMapper.getClass().getName());
            register(exceptionMapper);
        }
    }