Marshalling via WebServiceGatewaySupport fails with JAXBException: class <classname> nor any of its super class is known to this context - jaxb

Question

I want to call webservices via clients. The clients are instantiated as beans:
#Configuration
public class ServiceClientConfiguration {
#Bean
public Jaxb2Marshaller marshaller() {
Jaxb2Marshaller marshaller = new Jaxb2Marshaller();
marshaller.setContextPath(CONTEXT_PATH);
return marshaller;
}
#Bean
public Service1Client authenticate(Jaxb2Marshaller marshaller) {
Service1Client client = new Service1Client();
client.setDefaultUri("http://localhost:8292/service1");
client.setMarshaller(marshaller);
client.setUnmarshaller(marshaller);
return client;
}
#Bean
public Service2Client broker(Jaxb2Marshaller marshaller) {
Service2Client client = new Service2Client();
client.setDefaultUri("http://localhost:8192/service2");
client.setMarshaller(marshaller);
client.setUnmarshaller(marshaller);
return client;
}
Though the both of the services are different, the request and responses are defined via xsd-files to the same package name - which is provided here as String 'CONTEXT_PATH' to the marshaller.
The clients itself look like this:
public class Service1Client extends WebServiceGatewaySupport {
private static final Logger log = LoggerFactory.getLogger(Tools.getClassName());
public Service1Response process(Service1Request request) {
Service1Response response = null;
try {
response = (Service1Response) getWebServiceTemplate()
.marshalSendAndReceive("http://localhost:8292/service1", request);
} catch (Exception e) {
log.error("", e);
}
return response;
}
}
and
public class Service2Client extends WebServiceGatewaySupport {
private static final Logger log = LoggerFactory.getLogger(Tools.getClassName());
public Service2Response process(Service2Request request) {
Service2Response response = null;
try {
response = (Service2Response) getWebServiceTemplate()
.marshalSendAndReceive("http://localhost:8192/service2", request);
} catch (Exception e) {
log.error("", e);
}
return response;
}
}
While running Service1Client is fine, the Service2Client fails with
javax.xml.bind.JAXBException: class <package>.Service2Request nor any of its super class is known to this context.
I removed "Service1Client" from the code - but the error remained to be the same.

Answer 1

I have renamed the pathname of the CONTEXT_PATH. It was "types.". I changed it to "dto.". Now it works as expected.
For me the reason for the problem looks sort of strange - maybe somebody can explain it.