Java Exception.printStackTrace()をStringに変換

自分で叶えて

public static String getErrorInfoFromException(Exception e) {
        try {
            StringWriter sw = new StringWriter();
            PrintWriter pw = new PrintWriter(sw);
            e.printStackTrace(pw);
            return "\r
" + sw.toString() + "\r
";
        } catch (Exception e2) {
            return "bad getErrorInfoFromException";
        }
    }

apache.commons.langパッケージの使用
String str = org.apache.commons.lang3.exception.ExceptionUtils.getStackTrace(Throwable);