Webservice client in client scope OK but Exception in gateway scope

Module Development
1

I develop a module which use apache.cxf for a client webservices SOAP 1.2 (with authentification)

When I create the client connexion in the module client scope and use it, everything is OK.

public final static QName SERVICE_NAME = new QName("http://www.onvif.org/ver20/ptz/wsdl", "PTZService");
public final static QName PORT_NAME = new QName("http://www.onvif.org/ver20/ptz/wsdl", "PTZPort");

...
String user = "ONVIFClient1";
String password = "ONVIFClient1";
String endpointAddress = "http://10.60.21.10:580/onvif/ptz_service";
service = Service.create(SERVICE_NAME);
service.addPort(PORT_NAME, SOAPBinding.SOAP12HTTP_BINDING, endpointAddress);
port = service.getPort(PTZ.class);
client = ClientProxy.getClient(port);  <======== EXCEPTION
endpoint = client.getEndpoint();
...
some code to add authentification in SOAP envelop

When I try to create the client connexion in the module gateway scope, with the same code, I have the following Exception :
(Note : both client and gateway are launched on the same machine)

java.lang.ClassCastException: com.sun.xml.internal.ws.client.sei.SEIStub cannot be cast to org.apache.cxf.frontend.ClientProxy
at org.apache.cxf.frontend.ClientProxy.getClient(ClientProxy.java:127)

Both client and gateway .pom have the dependency to common.pom which contain the right dependency to apache-cxf :

        <dependency>
            <groupId>org.apache.cxf</groupId>
            <artifactId>cxf-rt-frontend-jaxws</artifactId>
            <version>3.2.1</version>
        </dependency>

        <dependency>
            <groupId>org.apache.cxf</groupId>
            <artifactId>cxf-rt-transports-http</artifactId>
            <version>3.2.1</version>
        </dependency>

        <dependency>
            <groupId>org.apache.cxf</groupId>
            <artifactId>cxf-rt-ws-security</artifactId>
            <version>3.2.1</version>
        </dependency>

Any Idea about the source of this exception ???
I doesn’t figure out why the behaviour is different in the client and the gateway scope.

2

I’d guess the behavior is different because the ClassLoader structure is different. In the client all code runs under a single ClassLoader. In the gateway, each module gets its own ClassLoader.

You appear to be generating a dynamic client from a WSDL at runtime, which likely entails some code generation and might be the cause of your issues. This page mentions something about generated classes being created under a new ClassLoader.

I don’t know enough about CXF to really help any further.

3

Thanks @Kevin.Herron for the clarification about classloader which make sense for the different behavior between client and gateway scope.

I solve my problem by creating the webservice client endpoint with

JaxWsProxyFactoryBean factory = new JaxWsProxyFactoryBean();
factory.setServiceClass(PTZ.class);
factory.setAddress("http://10.60.21.10:580/onvif/ptz_service");
port = (PTZ) factory.create();
client = ClientProxy.getClient(port);
endpoint = client.getEndpoint();

I didn’t khow exactly why, but it works.