GraphObject getObject(BddtHistoryItem hi) { BumpRunValue rv = hi.getThisValue(); GraphObject go = null; if (rv != null) { String key = rv.getValue(); go = object_map.get(key); if (go == null) { go = new GraphObject(rv); graph_objects.add(go); object_map.put(key, go); } } else { String cnm = hi.getClassName(); go = object_map.get(cnm); if (go == null) { go = new GraphObject(cnm); graph_objects.add(go); object_map.put(cnm, go); } } return go; }