// Can't do it the easy way, so inspect content controls
TraversalUtilCCVisitor visitor = new TraversalUtilCCVisitor();
visitor.customXmlParts = wordMLPackage.getCustomXmlDataStorageParts();
SingleTraversalUtilVisitorCallback ccFinder
= new SingleTraversalUtilVisitorCallback(visitor);
ccFinder.walkJAXBElements(
wordMLPackage.getMainDocumentPart().getJaxbElement().getBody());
if (visitor.customXmlDataStoragePart==null) {
log.error("FATAL. Couldn't find CustomXmlDataStoragePart " );
return null;
} else {