springboot devtool restart 后DtpMonitor.onContextRefreshedEvent 报错

[sage417]

版本信息

• Jdk版本：21
• SpringBoot版本：2.7.18
• DynamicTp版本：1.1.7
• 配置中心类型：无
• 配置中心版本：

问题描述

• 配置文件：

• 引入的依赖：

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-devtools</artifactId>
        <scope>runtime</scope>
        <optional>true</optional>
    </dependency>
  
    <dependency>
        <groupId>org.dromara.dynamictp</groupId>
        <artifactId>dynamic-tp-extension-skywalking</artifactId>
        <version>${dynamicTp.version}</version>
    </dependency>
  
    <!-- thread pool -->
    <dependency>
        <groupId>org.dromara.dynamictp</groupId>
        <artifactId>dynamic-tp-spring-boot-starter-common</artifactId>
        <version>${dynamicTp.version}</version>
    </dependency>
  

• 代码使用步骤：
  使用springboot devtools restart 功能

• 报错信息：

java.util.concurrent.RejectedExecutionException: Task java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask@7989cd6b[Not completed, task = java.util.concurrent.Executors$RunnableAdapter@6832a125[Wrapped task = org.dromara.dynamictp.core.monitor.DtpMonitor$$Lambda/0x00000151020c1ab0@5a67e249]] rejected from java.util.concurrent.ScheduledThreadPoolExecutor@519367cb[Terminated, pool size = 0, active threads = 0, queued tasks = 0, completed tasks = 3]
at java.base/java.util.concurrent.ThreadPoolExecutor$AbortPolicy.rejectedExecution(ThreadPoolExecutor.java:2081)
at java.base/java.util.concurrent.ThreadPoolExecutor.reject(ThreadPoolExecutor.java:841)
at java.base/java.util.concurrent.ScheduledThreadPoolExecutor.delayedExecute(ScheduledThreadPoolExecutor.java:340)
at java.base/java.util.concurrent.ScheduledThreadPoolExecutor.scheduleWithFixedDelay(ScheduledThreadPoolExecutor.java:680)
at org.dromara.dynamictp.core.monitor.DtpMonitor.onContextRefreshedEvent(DtpMonitor.java:74)
at org.dromara.dynamictp.common.spring.OnceApplicationContextEventListener.onApplicationEvent(OnceApplicationContextEventListener.java:50)
at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:178)
at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:171)
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:145)
at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:429)
at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:386)
at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:949)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:594)
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:147)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:732)
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:409)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:308)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1300)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1289)
at app.pooi.workflow.WorkflowApplication.main(WorkflowApplication.java:14)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
at java.base/java.lang.reflect.Method.invoke(Method.java:580)
at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:50)

• 猜测可能原因：
  容器close时调用org.dromara.dynamictp.core.spring.DtpLifecycle#stop()导致org.dromara.dynamictp.core.monitor.DtpMonitor#MONITOR_EXECUTOR被shutdown
  context refresh时复用了被shutdown的MONITOR_EXECUTOR导致报错

复现步骤

1. 触发springboot devtools restart classloader