shud work

    public String getLongestString() {
    String result = "";
    for (int var0 = 0; var0 < chatLines.size(); var0++)
        if (((ChatLine) chatLines.get(var0)).getChatLineString().isEmpty())
        result = (String) chatLines.get(var0);
        else if (result.length() > ((ChatLine) chatLines.get(var0))
            .getChatLineString().length())
        result = (String) chatLines.get(var0);
    return result;
    }