Trim Non Space Characters In java

trim.java

// Trim all whitespace characters
    // It is a Unicode space character (SPACE_SEPARATOR, LINE_SEPARATOR, or PARAGRAPH_SEPARATOR) but is not also a non-breaking space ('\u00A0', '\u2007', '\u202F').
    // Reference : https://docs.oracle.com/javase/8/docs/api/java/lang/Character.html#isWhitespace-char-
    public static String trim(String value){
        // first replace characters which are ignored by java to space.
        char spaceChar = ' ';
        return value == null ? null
                : value.replace('\u00A0',spaceChar)
                    .replace('\u2007',spaceChar)
                    .replace('\u202F',spaceChar)
                    .trim();
    }