Assert.assertEquals("[]", rrA.keySet(f).toString());
Assert.assertEquals("[A]", rcA.keySet(f).toString());
reader.commit();
Assert.assertEquals("[A]", writerA.keySet(f).toString());
Assert.assertEquals("[A]", dirtyA.keySet(f).toString());
Assert.assertEquals("[A]", rrA.keySet(f).toString());
Assert.assertEquals("[A]", rcA.keySet(f).toString());
writer.commit();