I tried to create a web service that accepts an XMLBean as its sole input parameter and produces an XMLBean as its return value. JWSC was able to compile it, but when I invoked the service I got a SOAP fault reporting the stack trace:
com.bea.xml.XmlRuntimeException: java.lang.InstantiationException: com.bea.xml.XmlObject
at com.bea.staxb.runtime.internal.ClassLoadingUtils.newInstance(ClassLoadingUtils.java:137)
at com.bea.staxb.runtime.internal.ByNameRuntimeBindingType.createIntermediary(ByNameRuntimeBindingType.java:196)
at com.bea.staxb.runtime.internal.AttributeUnmarshaller.unmarshal(AttributeUnmarshaller.java:36)
I guess the deserializer is looking for a no-arg constructor for XmlObject. As of WLS 9.0, there is no longer a way to register a custom deserializer to overcome the absence of a no-arg constructor/bean pattern.
It would appear that others are having similar problems.
