[ISSUE #10817] Upgrade SpotBugs for JDK 21 compatibility

[fuyou001]

Which Issue(s) This PR Fixes

• Fixes Upgrade spotbugs-maven-plugin for JDK 21 compatibility #10817

Brief Description

Upgrade spotbugs-maven-plugin from 4.2.2 to 4.8.6.8 so that SpotBugs can run on JDK 21 while retaining JDK 8 compatibility.

The old plugin fails on JDK 21 because it invokes the deprecated Security Manager API and bundles an ASM version that cannot analyze Java 21 class files. This change also removes the obsolete spotbugsXmlOutput parameter, which is not supported by 4.8.6.8.

The newer SpotBugs version detects several High-priority DMI_RANDOM_USED_ONLY_ONCE findings. Replace those one-shot Random instances with ThreadLocalRandom, or reuse the existing shared Random in RandomUtil, while preserving the original value ranges and behavior.

How Did You Test This Change?

• JDK 21: mvn -B -ntp -Dstyle.color=never -DskipTests compile
• JDK 8: mvn -B -ntp -Dstyle.color=never -DskipTests clean compile

Both full 19-module reactor builds completed successfully with Checkstyle and SpotBugs reporting no violations.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 75.00000% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 48.24%. Comparing base (2daf0e2) to head (29197c4).

Files with missing lines	Patch %	Lines
.../org/apache/rocketmq/store/kv/CompactionStore.java	0.00%	1 Missing ⚠️

Additional details and impacted files

@@              Coverage Diff              @@
##             develop   #10818      +/-   ##
=============================================
- Coverage      48.32%   48.24%   -0.09%     
+ Complexity     13516    13497      -19     
=============================================
  Files           1380     1380              
  Lines         101138   101135       -3     
  Branches       13120    13120              
=============================================
- Hits           48876    48792      -84     
- Misses         46298    46359      +61     
- Partials        5964     5984      +20     

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[RockteMQ-AI]

Summary

SpotBugs plugin upgrade from 4.2.2 → 4.8.6.8 for JDK 21 compatibility. The old plugin fails on JDK 21 due to deprecated Security Manager API and bundled ASM that can't analyze Java 21 class files.

The newer SpotBugs detects DMI_RANDOM_USED_ONLY_ONCE findings, and the PR correctly addresses them:

• Benchmark BatchProducer / Producer: one-shot new Random(System.currentTimeMillis()) → ThreadLocalRandom.current() ✓
• MessageQueueSelector: one-shot new Random() → ThreadLocalRandom.current() ✓
• NettyRemotingClient.initValueIndex(): one-shot new Random() → ThreadLocalRandom.current() ✓
• CompactionStore: one-shot new Random(System.currentTimeMillis()) → ThreadLocalRandom.current() ✓
• RandomUtil: removes local Random rd that shadowed the class-level field — the loop now correctly uses the shared class-level rd ✓

Removal of obsolete spotbugsXmlOutput parameter is also correct (not supported in 4.8.6.8).

All changes preserve original value ranges and behavior. Verified builds on both JDK 8 and JDK 21.

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Automated review by github-manager-bot

[RockteMQ-AI]

Summary

Defensive fix with proper validation and test coverage. LGTM.

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Automated review by github-manager-bot