uplift part 1: remove javax support, update java to v17 and update gradle to v8.10.2

[richardelms]

This pull request simplifies the bugsnag-spring module by removing support for Java 8 and the legacy javax.* Spring APIs, making Java 17 and Jakarta Spring the default. The build configuration and test setup are streamlined, and the code is updated to remove conditional logic for multiple Spring/Java versions. Additionally, the scheduled task error handling logic is improved for compatibility with Spring Boot 3.

Build and Dependency Configuration Simplification:

• The bugsnag-spring/build.gradle file is refactored to remove all Java 8 and javax.* Spring dependencies and configurations, making Java 17 and Jakarta Spring the default. Source sets and custom configurations for javax and jakarta are removed, and dependencies are consolidated. [1] [2]
• The separate javax subproject (bugsnag-spring/javax/build.gradle and related test resources) is deleted, fully dropping support for Java 8 and legacy javax.* APIs. [1] [2]

CI Pipeline Updates:

• The Buildkite pipeline (.buildkite/pipeline.yml) is updated to remove Java 8 Mazerunner test batches, reflecting the dropped support for Java 8. Only Java 17 tests remain.

Codebase Cleanup and API Consolidation:

• The import selector logic in BugsnagImportSelector is simplified to always use Jakarta Spring classes, removing runtime checks for Spring/Java version and legacy javax.* configuration. [1] [2]

Scheduled Task Error Handling Improvements:

• The ScheduledTaskConfiguration class is enhanced to better handle error handlers for scheduled tasks, including support for chaining a dedicated ErrorHandler bean if present, and improved compatibility with Spring Boot 3's TaskSchedulerRouter. [1] [2]

[Copilot]

Pull Request Overview

This pull request removes support for Java 8 and the javax.* Spring API in favor of Java 17 and Jakarta Spring as the default. The changes consolidate the build configuration, simplify the codebase by removing version detection logic, and improve scheduled task error handling compatibility with Spring Boot 3.

• Removes Java 8 and javax.* Spring support, making Java 17 and Jakarta Spring the default
• Simplifies build configuration by removing dual source sets and dependencies
• Improves scheduled task error handling for better Spring Boot 3 compatibility

Reviewed Changes

Copilot reviewed 78 out of 81 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
settings.gradle	Removes javax servlet example from included projects
scripts/build-test-repository.sh	Updates repository build script with improved error handling
release.gradle	Modernizes Maven publishing configuration with Java 17 support
gradle/wrapper/gradle-wrapper.properties	Updates Gradle wrapper to version 8.10.2
features/project_package.feature	Updates expected stack trace method names for Spring Boot 3
bugsnag-spring/build.gradle	Consolidates build configuration to Jakarta/Java 17 only
bugsnag-spring/src/common/java/com/bugsnag/ScheduledTaskConfiguration.java	Enhances scheduled task error handling with Spring Boot 3 compatibility
bugsnag-spring/src/common/java/com/bugsnag/BugsnagImportSelector.java	Removes version detection logic, always uses Jakarta classes

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[Copilot]

[nitpick] The janino dependency is added without explanation. Consider adding a comment explaining why this conditional compilation library is needed.

Suggested change

	implementation("ch.qos.logback:logback-classic:1.5.18")
	implementation("ch.qos.logback:logback-classic:1.5.18")
	// Janino is required by logback-classic for conditional processing in logback configuration files (e.g., <if> statements in logback.xml)