/super-csv/src/main/java/org/supercsv/util/ThreeDHashMap.java
HashMap<K2, HashMap<K3, V>> innerMap1 = firstKey.get( map) ;
HashMap<K2, HashMap<K3, V>> innerMap1 = map.get ( firstKey ) ;
if( innerMap2 == null ) { return null; } return innerMap2.get(thirdKey); } public Object set(final K1 firstKey, final K2 secondKey, final K3 thirdKey, final V value) { <extra_id_0> if( innerMap1 == null ) { innerMap1 = new HashMap<K2, HashMap<K3, V>>(); map.put(firstKey, innerMap1); } HashMap<K3, V> innerMap2 = innerMap1.get(secondKey); if( innerMap2 == null ) {