protected void initClass(){
  if (sampleClass == null) {
    try {
      sampleClass=Class.forName(sampleClassParams.className);
    }
 catch (    ClassNotFoundException e) {
      throw new RuntimeException(sampleClassParams.className + " not found");
    }
  }
}

protected void initClass ( ) { if ( sampleClass == null ) { try { sampleClass = Class . forName ( sampleClassParams . className ) ; } catch ( ClassNotFoundException e ) { throw new RuntimeException ( sampleClassParams . className + " not found" ) ; } } }
creates a class object for the example you want to test .
