@RequiresReadLock
  protected static Set<PsiClass> getLineClasses(final PsiFile file, int lineNumber) {
    Document document = file.getViewProvider().getDocument();
    Set<PsiClass> res = new HashSet<>();
    if (document != null) {
      XDebuggerUtil.getInstance().iterateLine(file.getProject(), document, lineNumber, element -> {
        PsiClass aClass = PsiUtil.getContainingClass(element);
        if (aClass != null) {
          res.add(aClass);
        }
        return true;
      });
    }
    return res;
  }
@RequiresReadLock
  protected static Set<PsiClass> getLineClasses(final PsiFile file, int lineNumber)