protected static Class<?> testClassFor(String classname){
  Class<?> result;
  result=null;
  try {
    result=Class.forName(getTestClassname(classname));
  }
 catch (  Exception e) {
  }
  return result;
}

protected static Class < ? > testClassFor ( String classname ) { Class < ? > result ; result = null ; try { result = Class . forName ( getTestClassname ( classname ) ) ; } catch ( Exception e ) { } return result ; }
returns the test class if it exists , for the given class , otherwise null
