reader = new MultiReader(fs, conf, "manyMaps");
key.set(501);
assertTrue(reader.seek(key));
scanOdd(reader, 501);
key.set(1000);
assertFalse(reader.seek(key));
assertFalse(reader.next(key, value));
key.set(-1);
assertFalse(reader.seek(key));
key.set(1);
assertTrue(reader.next(key, value));