question: protected List < PowerHost > extractHostListFromMigrationMap ( List < Map < String , Object > > migrationMap ) { List < PowerHost > hosts = new LinkedList < PowerHost > ( ) ; for ( Map < String , Object > map : migrationMap ) { hosts . add ( ( PowerHost ) map . get ( "host" ) ) ; } return hosts ; }
target:  Extracts the host list from a migration map.