public static List<VirtualFile> convertToFiles(Collection<? extends SimpleClasspathElement> cpeList, boolean refresh) {
    VirtualFileManager fileManager = VirtualFileManager.getInstance();
    List<VirtualFile> files = new ArrayList<>();
    for (SimpleClasspathElement cpe : cpeList) {
      for (String fileUrl : cpe.getClassesRootUrls()) {
        VirtualFile file = refresh ? fileManager.refreshAndFindFileByUrl(fileUrl) : fileManager.findFileByUrl(fileUrl);
        if (file != null) {
          files.add(file);
        }
      }
    }
    return files;
  }
public static List<VirtualFile> convertToFiles(Collection<? extends SimpleClasspathElement> cpeList, boolean refresh)