PartitionPlan pplan = PartitionPlan.createFromMap(m);
assertNotNull(pplan);
// pplan.save("/tmp/tm1.manual.pplan");
String json = pplan.toJSONString();
assertFalse(json.isEmpty());
JSONObject json_object = new JSONObject(json);
assertNotNull(json_object);
PartitionPlan clone = new PartitionPlan();