private String getRetryMessage(Object[] args) {
        if (args == null) {
            return "";
        }
        final StringBuilder sb = new StringBuilder(32);
        Exception ex = ArrayArgumentUtils.getArgument(args, 1, Exception.class);
        if (ex != null) {
            sb.append(ex.getClass().getName());
            sb.append(", ");
        }
        Integer retry = ArrayArgumentUtils.getArgument(args, 2, Integer.class);
        if (retry != null) {
            sb.append(retry);
        }
        return sb.toString();
    }
@author Minwoo Jung
@author jaehong.kim
agent-module/plugins/httpclient3/src/main/java/com/navercorp/pinpoint/plugin/httpclient3/interceptor/RetryMethodInterceptor.java