/super-csv/src/main/java/org/supercsv/util/ThreeDHashMap.java
HashMap<K2, HashMap<K3, V>> innerMap1 = map.get( firstKey) ;final HashMap<K2, HashMap<K3, V>> innerMap1 = map.get( firstKey) ;
final HashMap<K2, HashMap<K3, V>> innerMap1 = map.get ( firstKey ) ;
if( innerMap == null ) { return 0; } return innerMap.size(); } public int size(final K1 firstKey, final K2 secondKey) { <extra_id_0> if( innerMap1 == null ) { return 0; } final HashMap<K3, V> innerMap2 = innerMap1.get(secondKey); if( innerMap2 == null ) { return 0;