final StringBuilder buf = new StringBuilder(searchWord.length());
        char prev = 0;
        for (final char c : searchWord.toCharArray()) {
            if (!Character.isWhitespace(c)) {
                buf.append(c);
            } else if (!Character.isWhitespace(prev)) {
                buf.append(' ');
            }
            prev = c;
        }
        final String[] words = buf.toString().trim().split(" ");

    public static boolean isBlank(final String str) {
        if (str == null || str.length() == 0) {
            return true;
        }
        for (int i = 0; i < str.length(); i++) {
            if (!Character.isWhitespace(str.charAt(i))) {
                return false;
            }
        }
        return true;
    }

    /**
     * Returns true if the string is not blank.
     *
     * @param str

        for (int i = 0; i < password.length(); i++) {
            final char c = password.charAt(i);
            if (!Character.isLetterOrDigit(c) && !Character.isWhitespace(c)) {
                return true;
            }
        }
        return false;
    }