I can publish the Endpoint without problems when my one and only web method has a String parameter. But if I change the param to a JAXB class, I always run into a IllegalArgumentException: argument contains null. I generated the JAXB class with the xjc tool. I also ran a debugger through it, but I'm not able to figure out where the issue comes from. I only know the issue appears while marshalling process happens. Any idea what it can be or what I can do furthermore?
Fixed it. Just avoid anonymous types in XML schema. After generating JAXB classes via xjc my service endpoint interface started as expected.