@Override
    protected void doInAfterTrace(SpanEventRecorder recorder, Object target, Object[] args, Object result, Throwable throwable) {
        recorder.recordApi(methodDescriptor);
        recorder.recordException(throwable);

        if (result != null) {
            recorder.recordAttribute(JacksonConstants.ANNOTATION_KEY_LENGTH_VALUE, ((String) result).length());
        }
    }
@see JacksonPlugin#intercept_ObjectMapper(com.navercorp.pinpoint.bootstrap.plugin.ProfilerPluginSetupContext)
@author Sungkook Kim
agent-module/plugins/jackson/src/main/java/com/navercorp/pinpoint/plugin/jackson/interceptor/WriteValueAsStringInterceptor.java