question: static Map addMapToMap ( Map mapToAdd , Map toMap ) { if ( ( mapToAdd != null ) && ( toMap != null ) ) { Set keySet = mapToAdd . keySet ( ) ; Iterator keyIter = keySet . iterator ( ) ; while ( keyIter . hasNext ( ) ) { String key = ( String ) keyIter . next ( ) ; Set values = ( Set ) mapToAdd . get ( key ) ; addElementToMap ( key , values , toMap ) ; } } return toMap ; }
target:  Adds a map to another map