@NotNull
  private static List<PsiFile> getChangedFiles(@NotNull Project project, @NotNull Collection<? extends Change> changes) {
    PsiManager psiManager = PsiManager.getInstance(project);
    return ContainerUtil.mapNotNull(changes, change -> {
      VirtualFile vFile = change.getVirtualFile();
      return vFile != null ? psiManager.findFile(vFile) : null;
    });
  }
@NotNull
  private static List<PsiFile> getChangedFiles(@NotNull Project project, @NotNull Collection<? extends Change> changes)