jBPM6 web service task error

[aha001]

I created a simple web service task to call a "HelloWorld" external service. The HelloWorld service has an operation "printMessage" with no input parameter

public interface HelloWorld {

    @WebMethod

    String printMessage();

}

I configured assignment parameter as per attached image but then I am getting this error.

Could not commit session: org.jbpm.workflow.instance.WorkflowRuntimeException: [callingws.callwebservice:15 - Call HelloWorld Service:2] -- org.apache.cxf.service.factory.ServiceConstructionException: Could not find definition for service {org.jbpm}HelloWorld.

Your help will be much appreciated.

[aha001]

Another error I have got was

No such operation: null (HTTP GET PATH_INFO: /hello-0.0.1-SNAPSHOT/HelloImpllnull

[lauradp]

Hi, I'm facing the same problem, have you get rid of this?

Laura