Hi. Spec says that document view has not to be complete.
Just for information, I found that if you have a node with two different mixin types, then you will not be able to import it. For example, I have a node with mix:referenceable and mix:jlibrary mixin types. This generates an xml like jcr:mixinTypes="mix:jlibrary mix:referenceable", and when importing it will throw an exception message like javax.jcr.InvalidSerializedDataException: failed to parse XML stream: illegal jcr:mixinTypes value: mix:jlibrary mix:referenceable: illegal jcr:mixinTypes value: mix:jlibrary mix:referenceable Regards. Martin
