Support reactor-netty 1.1.x+ (Spring Boot 3.2+)

[Copilot]

Closes #13447

• Analyze reactor-netty 1.0.x, 1.1.x, 1.2.x API differences
• Update pom.xml to add reactor-netty-http explicit dependency for 1.1.x+ module split
• Add beforeMarkSentHeaders() as alternative interception point in HttpClientOperationsTransform (exists in all versions; isNested check prevents duplicate injection)
• Create reactor-netty-spring-boot3-plugin-testweb for Spring Boot 3.x (reactor-netty 1.1.x+) testing
• Add new test web to jdk17 profile in agent-testweb pom
• All existing tests pass
• Code review: no issues found
• Security scan: no issues found

Original prompt

---

This section details on the original issue you should resolve

<issue_title>支持 reactor-netty 1.1.x+</issue_title>
<issue_description>版本兼容性分析结论

确认发现

当前 Pinpoint (v3.0.4 / v3.1.0-SNAPSHOT) 不支持 reactor-netty 1.1.x+

原因：

• Pinpoint 注入 trace header 的唯一拦截点是 HttpClientOperations.followRedirectPredicate(BiPredicate) 方法
• 该方法在 reactor-netty 1.1.0 (2023年1月) 中已被移除
• 当前 Pinpoint 代码中没有针对 reactor-netty 1.1.x 的备选拦截方案

代码证据

// ReactorNettyPlugin.java:251-254 - 这是唯一注入 trace header 的地方
final InstrumentMethod sendMethod = target.getDeclaredMethod(
"followRedirectPredicate", // 该方法在 reactor-netty 1.1.0 中已被移除！
"java.util.function.BiPredicate"
);
if (sendMethod != null) { // 新版本中 sendMethod == null，header 不会被注入
sendMethod.addInterceptor(HttpClientOperationsSendInterceptor.class);
}

版本对照表

┌────────────────────┬───────────────┬─────────────────────┬───────────────────┐
│ reactor-netty 版本 │ Pinpoint 支持 │ Spring Boot 版本 │ Spring Cloud 版本 │
├────────────────────┼───────────────┼─────────────────────┼───────────────────┤
│ 1.0.x │ ✅ 支持 │ 2.7.x, 3.0.x, 3.1.x │ 2021.x, 2022.x │
├────────────────────┼───────────────┼─────────────────────┼───────────────────┤
│ 1.1.x │ ❌ 不支持 │ 3.2.x, 3.3.x │ 2023.0.x │
├────────────────────┼───────────────┼─────────────────────┼───────────────────┤
│ 1.2.x │ ❌ 不支持 │ 3.4.x+ │ 2024.x │
└────────────────────┴───────────────┴─────────────────────┴───────────────────┘</issue_description>

<agent_instructions>Resolve issue @13447</agent_instructions>

Comments on the Issue (you are @copilot in this section)

• Fixes Support reactor-netty 1.1.x+ #13447

---

✨ Let Copilot coding agent set things up for you — coding agent works faster and does higher quality work when set up for your repo.

[CLAassistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution.
_{You have signed the CLA already but the status is still pending? Let us recheck it.}

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 33.04%. Comparing base (161e704) to head (f382038).

Additional details and impacted files

@@             Coverage Diff              @@
##             master   #13448      +/-   ##
============================================
- Coverage     33.05%   33.04%   -0.01%     
+ Complexity    11014    11013       -1     
============================================
  Files          4075     4075              
  Lines         94784    94784              
  Branches       9865     9865              
============================================
- Hits          31330    31326       -4     
- Misses        60761    60763       +2     
- Partials       2693     2695       +2     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[emeroad]

@copilot
Fix #13447

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[Copilot]

@copilot
Fix #13447

Done — the changes in commit 73771b6 fix #13447 by adding beforeMarkSentHeaders() as a stable interception point for reactor-netty 1.1.x+ and adding a Spring Boot 3 test web module for validation.