在MacBook通过 Java -jar 启动应用程序时，Thread.currentThread().getContextClassLo…

[shenghui555]

…ader() 可能为 null 或系统类加载器，导致找不到资源，需要显示的指定类加载器。

Description

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Fixes #<issue_number_goes_here> 🦕

[gemini-code-assist]

Summary of Changes

Hello @shenghui555, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

这个拉取请求通过确保在服务加载过程中使用正确的类加载器，解决了在特定部署场景下资源发现失败的问题。此更改提高了应用程序在不同运行环境下的健壮性和兼容性。

Highlights

• 修复类加载器问题: 在 ServiceLoader.load() 调用中显式指定类加载器，以解决在某些环境下（如MacBook上通过 java -jar 启动）Thread.currentThread().getContextClassLoader() 可能返回 null 或系统类加载器导致资源无法加载的问题。

Changelog

• client/base/src/main/java/io/a2a/client/ClientBuilder.java
  • 更新了 ServiceLoader.load() 方法，显式传递 ClientBuilder.class.getClassLoader() 作为类加载器参数。

Activity

• 作者 shenghui555 提交了此拉取请求，旨在解决 ServiceLoader 在特定环境下无法正确加载服务的问题。
• 拉取请求描述中提到了遵循 CONTRIBUTING 指南、遵循 Conventional Commits 规范、确保测试通过以及更新 READMEs 的要求。

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[gemini-code-assist]

Code Review

本次变更通过在 ServiceLoader.load 方法中显式指定类加载器，解决了在某些环境（如通过 java -jar 启动）下可能出现的资源加载问题。这是一个很好的健壮性改进，可以避免因线程上下文类加载器不正确而导致的 ServiceLoader 失败。代码修改正确且目标明确，我没有发现其他问题。

[kabir]

@shenghui555 Thank you for the PR, would you be able to translate the commit message and PR text to English?

Also, I think you need to put "fix: " at the front of the PR title to satisfy the "Conventional Commits" job :-)

[ehsavoie]

Google translation: When launching an application on a MacBook via Java -jar, Thread.currentThread().getContextClassLoader() may return null or the system class loader may not find the resource, requiring explicit specification of the class loader.

[ehsavoie]

@shenghui555 Could you provide more details about your use case because usually it is better to rely on the TCCL than on the current class classloader (especially when the classpath is modular)

[shenghui555]

After I start the Agent client service through a Shell script, when I invoke the Agent server via the a2a protocol for the first time on the user interface, the static code block of ClientBuilder.java will be executed. The invocation works normally on Windows, but encounters a Classloader issue on a MacBook.

[ehsavoie]

May you share your script so that we can take a look ?