protected static TestSuite addAll(Vector<String> classnames){
  int i;
  Class<?> tc;
  TestSuite result;
  result=new TestSuite();
  for (i=0; i < classnames.size(); i++) {
    tc=testClassFor(classnames.get(i));
    if (tc != null) {
      result.addTest(new TestSuite(tc));
    }
  }
  return result;
}

protected static TestSuite addAll ( Vector < String > classnames ) { int i ; Class < ? > tc ; TestSuite result ; result = new TestSuite ( ) ; for ( i = 0 ; i < classnames . size ( ) ; i ++ ) { tc = testClassFor ( classnames . get ( i ) ) ; if ( tc != null ) { result . addTest ( new TestSuite ( tc ) ) ; } } return result ; }
tries to find test classes for all the given classnames , if successful they ' re added to the test
