@Nullable
  public static String getPackageForFile(@NotNull PsiFile containingFile) {
    final VirtualFile vFile = containingFile.getVirtualFile();

    if (vFile != null) {
      return QualifiedNameFinder.findShortestImportableName(containingFile, vFile);
    }
    return null;
  }
@Nullable
  public static String getPackageForFile(@NotNull PsiFile containingFile)