/super-csv/src/main/java/org/supercsv/util/ThreeDHashMap.java
if( innerMap1 != null ) {
if ( innerMap2 == null ) {
HashMap<K2, HashMap<K3, V>> innerMap1 = map.get(firstKey); if( innerMap1 == null ) { innerMap1 = new HashMap<K2, HashMap<K3, V>>(); map.put(firstKey, innerMap1); } HashMap<K3, V> innerMap2 = innerMap1.get(secondKey); <extra_id_0> innerMap2 = new HashMap<K3, V>(); innerMap1.put(secondKey, innerMap2); } return innerMap2.put(thirdKey, value); } public int size() {