https://github.com/spring-projects/spring-boot/blob/main/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/reactor/DebugAgentEnvironmentPostProcessor.java#L44
- If compile time reactor debug is enabled as described here: https://github.com/reactor/reactor-core/blob/main/docs/asciidoc/debugging.adoc#running-reactordebugagent-at-build-time
- Then the reactor-tools library is on the classpath
- However the class ByteBuddyAgent isn't since this is compile time
Suggestion: make the loading also conditional on the class net.bytebuddy.agent.ByteBuddyAgent to detect when the user wants compile or runtime/agent-based enhancement.
Stack trace:
10:59:09.028 [main] ERROR org.springframework.boot.SpringApplication -- Application run failed
java.lang.RuntimeException: Failed to init Reactor's debug agent
at org.springframework.boot.reactor.DebugAgentEnvironmentPostProcessor.postProcessEnvironment(DebugAgentEnvironmentPostProcessor.java:52)
at org.springframework.boot.env.EnvironmentPostProcessorApplicationListener.onApplicationEnvironmentPreparedEvent(EnvironmentPostProcessorApplicationListener.java:109)
at org.springframework.boot.env.EnvironmentPostProcessorApplicationListener.onApplicationEvent(EnvironmentPostProcessorApplicationListener.java:94)
at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:176)
at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:169)
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:143)
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:131)
at org.springframework.boot.context.event.EventPublishingRunListener.multicastInitialEvent(EventPublishingRunListener.java:136)
at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:81)
at org.springframework.boot.SpringApplicationRunListeners.lambda$environmentPrepared$2(SpringApplicationRunListeners.java:64)
at java.base/java.lang.Iterable.forEach(Unknown Source)
at org.springframework.boot.SpringApplicationRunListeners.doWithListeners(SpringApplicationRunListeners.java:118)
at org.springframework.boot.SpringApplicationRunListeners.doWithListeners(SpringApplicationRunListeners.java:112)
at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:63)
at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:354)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:305)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1304)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1293)
at com.example.Service.main(LspReportingServiceApplication.java:26)
Caused by: java.lang.reflect.InvocationTargetException: null
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.base/java.lang.reflect.Method.invoke(Unknown Source)
at org.springframework.boot.reactor.DebugAgentEnvironmentPostProcessor.postProcessEnvironment(DebugAgentEnvironmentPostProcessor.java:49)
... 18 common frames omitted
Caused by: java.lang.NoClassDefFoundError: net/bytebuddy/agent/ByteBuddyAgent
at reactor.tools.agent.ReactorDebugAgent.init(ReactorDebugAgent.java:56)
... 23 common frames omitted
Caused by: java.lang.ClassNotFoundException: net.bytebuddy.agent.ByteBuddyAgent
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(Unknown Source)
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(Unknown Source)
at java.base/java.lang.ClassLoader.loadClass(Unknown Source)
... 24 common frames omitted
Comment From: wilkinsona
Closing in favor of #35098.
@ls-urs-keller Thanks. As described in the issue template, we don't require an issue when a PR is going to be opened as well:
An issue will be closed as a duplicate of the immediate pull request, so you don't have to raise an issue if you plan to create a pull request immediately.