try
{
// construct our data source
CollectionOfAssignments ca = new CollectionOfAssignments("comp125Classroom.zip", "");
//preprocessing comp125Classroom.zip into correct directory structure
ca.preprocessingSingleFileAssignment("comp125.Classroom");
// this will be used by JavaGrader when construct TestResult
ca.setIdentificationTokenizer(new MQiLearnIdentificationTokenizer());
// construct our data processor
JavaGrader grader = new JavaGrader("comp125.ClassroomTest");
// add the zip of test source with package structure specified as comp125.ClassroomTest