tomcat 启动异常 The web application [ROOT] registered the JDBC driver [xxx] but failed to unregister it

tomcat启动的时候出现如下异常:

22-Feb-2021 20:25:30.697 严重 [RMI TCP Connection(3)-127.0.0.1] org.apache.catalina.core.StandardContext.startInternal One or more listeners failed to start. Full details will be found in the appropriate container log file
22-Feb-2021 20:25:30.697 严重 [RMI TCP Connection(3)-127.0.0.1] org.apache.catalina.core.StandardContext.startInternal Context [] startup failed due to previous errors
22-Feb-2021 20:25:31.814 警告 [RMI TCP Connection(3)-127.0.0.1] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesJdbc The web application [ROOT] registered the JDBC driver [com.microsoft.sqlserver.jdbc.SQLServerDriver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.
22-Feb-2021 20:25:31.815 警告 [RMI TCP Connection(3)-127.0.0.1] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesJdbc The web application [ROOT] 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.
22-Feb-2021 20:25:31.816 警告 [RMI TCP Connection(3)-127.0.0.1] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [ROOT] appears to have started a thread named [cat-MessageTreeContextHolderCleaner] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:java.lang.Thread.sleep(Native Method)java.lang.Thread.sleep(Thread.java:340)java.util.concurrent.TimeUnit.sleep(TimeUnit.java:386)com.dianping.cat.message.MessageTreeContextHolder$CleanupTask.run(MessageTreeContextHolder.java:133)java.lang.Thread.run(Thread.java:748)com.dianping.cat.utils.Threads$RunnableThread.run(Threads.java:286)
22-Feb-2021 20:25:31.817 警告 [RMI TCP Connection(3)-127.0.0.1] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [ROOT] appears to have started a thread named [cat-1] but has failed to stop it. This is very likely to cre

一开始我的重点都放在To prevent a memory leak, This is very likely to create a memory leak，因为是启动的时候报错，所以怀疑是jvm内存大小不够，在启动的时候添加参数: -Xms,-Xmx,但是启动的时候仍旧报错。

我使用的IDE是Idea，其本身也是运行在jvm上的，我又尝试修改了其 vmoptions 配置文件(在IDEA安装目录的bin目录下的idea64.exe.vmoptions)，修改如下所示的参数:

也可以在idea的操作界面上进行设置，如下图所示:

但是最终都没有效果。

我又详细看了下报错的信息，最开始报错的是关于数据库的部分，可能是数据库连接等方面出了问题，尝试处理了下，确实启动就不再报错了。

这类启动时疑似上述内存泄漏的报错，大多是对应的服务启动失败。我这里就是数据库服务启动失败了，由于使用了没有授权的db

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