[markushi]

📜 Description

SentryLog4j2AppenderAutoConfigurationTest (in sentry-spring-boot-jakarta and sentry-spring-boot-4) now keeps a strong reference to the Log4j2 LoggerContext for the whole test. Before, it read the context again with LogManager.getContext(false) on every access.

Test-only change.

💡 Motivation and Context

ClassLoaderContextSelector holds each LoggerContext only through a WeakReference. The test kept no strong reference. If a GC ran during the Spring context startup, Log4j2 collected the context and made a new one with a fresh DefaultConfiguration. Appenders that the test added before were then gone.

This made does not configure SentryAppender when appender is already configured fail: the root logger then had only SENTRY_APPENDER, not customAppender. The result depends on GC timing. It fails every time on my machine on main, and it failed twice in a row on the Build Job ubuntu-latest CI job of #6231, which does not touch Spring or Log4j2.

💚 How did you test it?

• Before the fix: the test fails on main every time on my machine, also when run alone.
• With temporary debug output, the LoggerContext identity inside the Spring context was different from the one before it. When the test held a strong reference, the identity stayed the same and the test passed.
• After the fix: ./gradlew :sentry-spring-boot-jakarta:test :sentry-spring-boot-4:test passes.

📝 Checklist

• I added GH Issue ID & Linear ID
• I added tests to verify the changes.
• No new PII added or SDK only sends newly added PII if sendDefaultPII is enabled.
• I updated the docs if needed.
• I updated the wizard if needed.
• Review from the native team if needed.
• No breaking change or entry added to the changelog.
• No breaking change for hybrid SDKs or communicated to hybrid SDKs.
• Public API changes reviewed by another Mobile SDK team member or implemented according to the develop docs spec.

🔮 Next steps

Rerun CI on #6231 after this merges.

🤖 Generated with Claude Code

#skip-changelog

[sentry]

📲 Install Builds

Android

🔗 App Name	App ID	Version	Configuration
SDK Size	io.sentry.tests.size	8.63.0 (1)	release

⚙️ sentry-android Build Distribution Settings

[runningcode]

Nice!