Method urlDecode

core/src/processing/core/PApplet.java:8213–8219

(String str)

  // using toURI() and URI.toURL()."
  // https://docs.oracle.com/javase/8/docs/api/java/net/URL.html
  static public String urlDecode(String str) {
    try {
      return URLDecoder.decode(str, "UTF-8");
    } catch (UnsupportedEncodingException e) {  // safe per the JDK source
      return null;
    }
  }