org.apache.catalina.loader.WebappClassLoader loadClass

信息: Illegal access: this web application instance has been stopped already (the eventual following stack trace is caused by an error thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access, and has no functional impact)

解决办法:

将tomcat的server.xml中的Context的reloadable设成false。

比如:<Context path="/expert" docBase="expert" debug="0" reloadable="false">

当系统中有很多类时，如果开启了Tomcat的reloadable=true,那么每当相关文件改变时，Tomcat会停止web app并释放内存,然后重新加载web app。