if (isFind) sessionAttribute.setOptions(options); else throw new InvalidAttributeException(); } else { sessionAttribute.setTextValue(storeAttribute.getValue()); String textValue = cleanNonAsciiCharacters(storeAttribute.getValue()); sessionAttribute.setTextValue(textValue); } return sessionAttribute; } private String cleanNonAsciiCharacters(String str) { if (str != null && !str.equals("")) { List<Character> newStr = new ArrayList<Character>(); char[] charArray = str.toCharArray(); for (int i = 0; i < charArray.length; i++) { if ((int) charArray[i] <= 126 && (int) charArray[i] >= 32) { newStr.add(charArray[i]); } } char[] newchars = new char[newStr.size()]; for (int i = 0; i < newStr.size(); i++) { newchars[i] = newStr.get(i); } str = String.valueOf(newchars); } return str; }

explanation of the code: 

    def add(a, b):
      return a + b