"artist1"));
ROArtist a1 = (ROArtist) context.performQuery(query).get(0);
Painting painting = context.newObject(Painting.class);
painting.setPaintingTitle("paint");
a1.addToPaintingArray(painting);
assertEquals(PersistenceState.MODIFIED, a1.getPersistenceState());
try {
context.commitChanges();
}