Eclipse MicroProfile Metrics with SOAP-based web services - eclipse

Question

Isn’t it possible to use Eclipse MicroProfile Metrics with SOAP-based web services on Payara Server 5.193.1? #Counted and #Timed don’t seem to work with #WebService and #WebMethod? Although, #Metric works. Is this by design or is it an issue?
Here is my code:
Interface:
package nl.tent.laboratory.emp.metrics;
import javax.jws.WebMethod;
import javax.jws.WebService;
#WebService
public interface MyWebService {
#WebMethod
String sayHello();
}
Implementation:
package nl.tent.laboratory.emp.metrics;
import javax.jws.WebService;
import org.eclipse.microprofile.metrics.annotation.Counted;
#WebService(endpointInterface = "nl.tent.laboratory.emp.metrics.MyWebService")
public class MyWebServiceImpl implements MyWebService {
// #Inject
// #Metric
// Counter counter;
public MyWebServiceImpl() {
super();
}
#Counted(name = "myCounter")
#Override
public String sayHello() {
// counter.inc();
return "Hello Marc!";
}
}

Answer 1

#Counted
and #Timed
are method interceptors and work only on CDI beans. #Metric
injects metrics objects and works where injection is supported, including Servlets and Web services.
In Payara Server, a web service object is implemented as a servlet by default. Servlets can inject CDI beans but they aren't CDI beans themselves and CDI interceptors don't work on them.
You need to turn your WS into a CDI bean (e.g. with #RequestScoped) or EJB (#Stateless) to enable the Metrics interceptors.