Release Apache SkyWalking Java Agent 9.4.0

SkyWalking Java Agent 9.4.0 is released. Go to downloads page to find release tars. Changes by Version

9.4.0

• Upgrade nats plugin to support 2.16.5
• Add agent self-observability.
• Fix intermittent ClassCircularityError by preloading ThreadLocalRandom since ByteBuddy 1.12.11
• Add witness class/method for resteasy-server plugin(v3/v4/v6)
• Add async-profiler feature for performance analysis. This requires OAP server 10.2.0
• Support db.instance tag,db.collection tag and AggregateOperation span for mongodb plugin(3.x/4.x)
• Improve CustomizeConfiguration by avoiding repeatedly resolve file config
• Add empty judgment for constructorInterceptPoint
• Bump up gRPC to 1.68.1
• Bump up netty to 4.1.115.Final
• Fix the CreateAopProxyInterceptor in the Spring core-patch to prevent it from changing the implementation of the Spring AOP proxy
• Support Tracing for GlobalFilter and GatewayFilter in Spring Gateway
• [doc] Enhance Custom Trace Ignoring Plugin document about conflicts with the plugin of sampler plugin with CPU policy
• [doc] Add Spring Gateway Plugin document
• [doc] Add 4 menu items guiding users to find important notices for Spring Annotation Plugin, Custom Trace Ignoring Plugin, Kotlin Coroutine Plugin, and Spring Gateway Plugin
• Change context and parent entry span propagation mechanism from gRPC ThreadLocal context to SkyWalking native dynamic field as new propagation mechanism, to better support async scenarios.
• Add Caffeine plugin as optional.
• Add Undertow 2.1.7.final+ worker thread pool metrics.
• Support for tracking in spring gateway versions 4.1.2 and above.
• Fix ConsumeDriver running status concurrency issues.

All issues and pull requests are here

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