Converting stack trace to string in java

 public static String convertFullStackTraceToString(Throwable e) {
        StringWriter sw = new StringWriter();
        e.printStackTrace(new PrintWriter(sw));
        StringBuffer buff = sw.getBuffer();
        int end = buff.length() <= stackTraceCharecterLimit ? buff.length() : stackTraceCharecterLimit;
        return buff.substring(0, end).toString();
    }