How to add additional classes to JAXBContext in CXF - rest

Question

I need to use <any>element in my xsd for scalability. So i used xsd as like below.
<complexType name="AddInput">
<sequence>
<element name="First" type="int"></element>
<element name="Sec" type="int"></element>
<any processContents="lax" namespace="##any" minOccurs="0" maxOccurs="unbounded"></any>
</sequence>
</complexType>
I have defined a complex object to place into the <any> placeholder, with ObjectFactory (#XMLRegistry, #XmlElementDecl) But still if i run below code, i am getting
org.apache.xerces.dom.ElementNSImpl
instead of JAXBElementObject. I searched in google, i see that JAXBContext should know about the schema. But i am not sure, how to make JAXBContext know my complex object. Any idea would be helpful.
List<Object> elemList = (List<Object>)input.getAny();
for(Object elem : elemList){
System.out.println(elem.getClass());
}

Answer 1

If you have a JAX-RS method like the following the JAXBContext used will be equivalent to making the following call JAXBContext.newInstance(Foo)
#GET
#Produces(MediaType.APPLICATION_XML)
#Path("{id}")
public Foo read(#PathParam("id") long id) {
return entityManager.find(Foo.class, id);
}
If you want the JAXBContext to be aware of all the classes you generated from the XML schema you can associate a JAXBContext with the domain object using a ContextResolver.
import java.io.*;
import java.util.*;
import javax.ws.rs.Produces;
import javax.ws.rs.ext.*;
import javax.xml.bind.*;
import org.eclipse.persistence.jaxb.JAXBContextFactory;
#Provider
#Produces(MediaType.APPLICATION_XML)
public class FooContextResolver implements ContextResolver<JAXBContext> {
private JAXBContext jc;
public FooContextResolver() {
try {
jc = JAXBContext.newInstance("com.example.foo");
} catch(JAXBException e) {
throw new RuntimeException(e);
}
}
public JAXBContext getContext(Class<?> clazz) {
if(Foo.class == clazz) {
return jc;
}
return null;
}
}
Example
Flexible marshalling with JAXB

Answer 2

you need to set :
jaxb.additionalContextClasses
see : https://stackoverflow.com/a/55485843/1634131