DirectCollectionMapping mapping = (DirectCollectionMapping) xmlDescriptor.getMappings().get(0);
XMLStreamReaderReader staxReader = new XMLStreamReaderReader(xmlUnmarshaller);
staxReader.setErrorHandler(xmlUnmarshaller.getErrorHandler());
PrimitiveArrayContentHandler primitiveArrayContentHandler = new PrimitiveArrayContentHandler(javaClass, componentClass, mapping.usesSingleNode());
staxReader.setContentHandler(primitiveArrayContentHandler);
XMLStreamReaderInputSource inputSource = new XMLStreamReaderInputSource(streamReader);
staxReader.parse(inputSource);
return primitiveArrayContentHandler.getJaxbElement();