/super-csv/src/main/java/org/supercsv/util/ThreeDHashMap.java
final HashMap<K2, HashMap<K3, V>> innerMap1 = firstKey.get( map) ;
final HashMap<K2, HashMap<K3, V>> innerMap1 = map.get ( firstKey ) ;
package org.supercsv.util; import java.util.HashMap; import java.util.Set; public class ThreeDHashMap<K1, K2, K3, V> { private final HashMap<K1, HashMap<K2, HashMap<K3, V>>> map = new HashMap<K1, HashMap<K2, HashMap<K3, V>>>(); public boolean containsKey(final K1 firstKey, final K2 secondKey) { <extra_id_0> if( innerMap1 == null ) { return false; } return innerMap1.containsKey(secondKey); } public boolean containsKey(final K1 firstKey, final K2 secondKey, final K3 thirdKey) {