错误：created a ThreadLocal with key of type ……but failed to remove it when the web application was stopped. This is very likely to create a memory leak.

quartz集群报错but has failed to stop it. This is very likely to create a memory leak.

The web application registered the JDBC driver * but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.

registered the JDBC driver [com.mysql.jdbc.Driver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.

启动错误笔记：DruidDriver] but failed to unregister it when the web application was stopped,To prevent a memory leak, the JDBC Driver has been forcibly unregistered.

quartzScheduler_Worker-1] but has failed to stop it. This is very likely to create a memory leak解决

错误1：APPLICATION FAILED TO START

小程序打开项目控制台警告：VM745:1 [Event] 11 listeners of event AppRoute have been added, possibly causing memory leak.

Illegal access：this web application instance has been stopped already

this web application instance has been stopped already.

Tomcat 开发web项目报Illegal access: this web application instance has been stopped already. Could not load [org.apache.commons.pool.impl.CursorableLinkedList$Cursor]. 错误

错误：created a ThreadLocal with key of type ……but failed to remove it when the web application was stopped. This is very likely to create a memory leak.

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