question: private void extractThemeAndCriterionSet ( ) { themeMap = new HashMap ( ) ; criterionMap = new HashMap ( ) ; for ( Test test : testSet ) { Criterion criterion = test . getCriterion ( ) ; if ( criterionMap . containsKey ( criterion ) ) { Integer testCounter = criterionMap . get ( criterion ) + 1 ; criterionMap . put ( criterion , testCounter ) ; } else { criterionMap . put ( criterion , 1 ) ; } Theme theme = criterion . getTheme ( ) ; if ( themeMap . containsKey ( theme ) ) { Integer testCounter = themeMap . get ( theme ) + 1 ; themeMap . put ( theme , testCounter ) ; } else { themeMap . put ( theme , 1 ) ; } } }
target:  This method extracts a collection of themes for a given audit