question: public PerDirectorySuite ( Class < ? > klass ) throws Throwable { super ( klass , Collections . < Runner > emptyList ( ) ) ; final TestClass testClass = getTestClass ( ) ; final Class < ? > javaTestClass = testClass . getJavaClass ( ) ; final List < List < File > > parametersList = getParametersList ( testClass ) ; for ( List < File > parameters : parametersList ) { runners . add ( new PerParameterSetTestRunner ( javaTestClass , parameters ) ) ; } }
target:  Only called reflectively. Do not use programmatically.