private void addChangedClass(final int it) {
    assert (myChangedClasses != null && myChangedFiles != null);
    myChangedClasses.add(it);

    final Iterable<File> files = classToSourceFileGet(it);

    if (files != null) {
      ContainerUtil.addAll(myChangedFiles, files);
    }
  }
private void addChangedClass(final int it)