arextest / arex-agent-java

Lightweight Java agent for traffic capture and replay, enhancing testing and debugging.
https://doc.arextest.com/
Apache License 2.0
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[Bug] 请求mocker保存报错:“send mock data unhandled error” #529

Open shichanglin5 opened 1 month ago

shichanglin5 commented 1 month ago

Search before asking

AREX Test Service

AREX Java Agent (arextest/arex-agent-java)

Current Behavior

报错截图如下

WeChatWorkScreenshot_6e4f7969-c34f-46a7-b6de-567d5fec1238

日志信息

2024-07-11 21:43:28:558 [arex-data-save-handler-4-thread-1] WARN io.arex.inst.runtime.log.LogManager - [[title=arex.saveDataLoop]]send mock data unhandled error: Cannot invoke "String.getBytes(java.nio.charset.Charset)" because "original" is null
2024-07-11 21:43:28:558 [arex-data-save-handler-4-thread-1] WARN io.arex.inst.runtime.log.LogManager - [[title=arex.saveDataLoop]]send mock data unhandled error: Cannot invoke "String.getBytes(java.nio.charset.Charset)" because "original" is null

问题排查:defaultSerializer 为空导致,debug跟踪代码发现 ServiceLoader 只加载了两个serializer,不包含 io.arex.foundation.serializer.jackson.JacksonSerializer#JacksonSerializer;后续在保存 mocker 时,由于 defaultSerializer 为空导致程序执行异常,后续录制的mocker无法保存 截图中的 classLoader 是 appClassLoader,如果是 spring 程序的话,是 tomcat loader,不会有问题

WeChatWorkScreenshot_38243b58-2030-4796-acb3-0577241d3893

Expected Behavior

一般的场景:tomcat loader 加载时,会包含 io.arex.foundation.serializer.jackson.JacksonSerializer#JacksonSerializer

WeChatWorkScreenshot_0c1eadb0-26ab-4515-acde-ecef6356ca30

Steps To Reproduce

非 tomcate 程序:如下截图的的 xxl 实例程序(jdk17):

image

复现: 1、构建 arex agent,用jdk17 2、指定 agent 挂载参数启动 xxl-job-executor-sample-frameless 3、下发一个调度请求到 xxl-job-executor-sample-frameless 程序(开始录制) 4、接着会看到报错日志:

WeChatWorkScreenshot_6e4f7969-c34f-46a7-b6de-567d5fec1238

Anything else

No response

Are you willing to submit a pull request to fix on your own?

YongwuHe commented 1 month ago

@shichanglin5 能否搜索一下这个日志 Unable to load class: 看看加载jacksonSerializer时报了啥错?