@Path("/test_action")
public interface TestResource {
    @Path("test")
    @POST
    @Consumes(MediaType.APPLICATION_FORM_URLENCODED)
    @Produces(MediaType.APPLICATION_JSON)
    GeneralOperationResult test2(@FormParam("asdf") @NotBlank String asdf);
}

@Stateless
public class TestResourceImpl implements TestResource {
    @Override
    public GeneralOperationResult test2(String asdf) {
        return GeneralOperationResult.createSuccess("test");
    }
}