code: public static List<File> unzipSkipHidden(File file) {
      return unzip(file, name -> name.startsWith(".") || name.startsWith("_") ? null : name);
    }
docs: Unzips a zipfile into the directory it resides in. Skips paths starting with '.' or '_'
  (typically hidden paths).
  
  @param file the file to unzip
  @return List of Files that got extracted
  @throws UnzipException if something went wrong