EmbeddedEntity List in AppEngine Datastore Java

EmbeddedEntity List in AppEngine Datastore Java

Can anyone confirm if the AppEngine Datastore - using its Java API -
supports a list of embedded entities? Something like
Entity parent = new Entity("Parent");
// set parent properties...
List<EmbeddedEntity> children = new ArrayList<EmbeddedEntity>();
for (int i = 0; i < 5; i++) {
EmbeddedEntity child = new EmbeddedEntity();
// set child properties...
children.add(child);
}
parent.setUnindexedProperty("children", children);
DatastoreServiceFactory.getDatastoreService().put(parent);
It seems to work but
it's not documented anywhere in the Entities, Properties, and Keys page
in the Datastore Viewer the children field value always shows up as
["jj/em/li /ol