I'm not sure if this is what you are asking for, but if you see them in your XML response, you are probably misusing the methods of the ObjectFactory class created by JAX-WS.
For example, two lines of code below
factory.createArrayOfNameListItem(factory.createArrayOfNameListItem());
factory.createMyDataItemNames(arrayOfNameListItem);
create objects of the same type:
JAXBElement<ArrayOfNameListItem> objects
However
factory.createArrayOfNameListItem(factory.createArrayOfNameListItem());
/ :
<ArrayOfNameListItem>
<Names>
<NameListItem>
<FirstName>
Homer
</FirstName>
<LastName>
Simpson
</LastName>
</NameListItem>
</Names>
</ArrayOfNameListItem>
factory.createMyDataItemNames(arrayOfNameListItem);
/ :
<Names>
<NameListItem>
<FirstName>
Homer
</FirstName>
<LastName>
Simpson
</LastName>
</NameListItem>
</Names>
, -.