求各位大神帮忙看看这是什么错

Question

2017-2-12 0:12:24 org.apache.catalina.loader.WebappClassLoader loadClass
信息: Illegal access: this web application instance has been stopped already. Could not load java.net.BindException. 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.
java.lang.IllegalStateException
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1588)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1547)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
at com.mysql.jdbc.CommunicationsException.(CommunicationsException.java:161)
at com.mysql.jdbc.MysqlIO.send(MysqlIO.java:2759)
at com.mysql.jdbc.MysqlIO.quit(MysqlIO.java:1410)
at com.mysql.jdbc.Connection.realClose(Connection.java:4947)
at com.mysql.jdbc.Connection.cleanup(Connection.java:2063)
at com.mysql.jdbc.Connection.finalize(Connection.java:3403)
at java.lang.ref.Finalizer.invokeFinalizeMethod(Native Method)
at java.lang.ref.Finalizer.runFinalizer(Finalizer.java:83)
at java.lang.ref.Finalizer.access$100(Finalizer.java:14)
at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:160)

Answer 1

存在多个应用程序实例，服务器上有旧版本程序的缓存。

重启服务器（可能需要多次）