Artist artist = context.newObject(Artist.class);
artist.setArtistName("aaa");
Painting p1 = context.newObject(Painting.class);
p1.setPaintingTitle("p1");
artist.addToPaintingArray(p1);
context.commitChanges();
context.invalidateObjects(Collections.singletonList(artist));
ToManyList list = (ToManyList) artist.getPaintingArray();
assertTrue("List must be unresolved...", list.isFault());