Tomcat 重启会引发关于缺少 destroy() 方法的错误 [英] Tomcat restart throws error regarding the missing destroy() method

问题描述

我的服务部署在tomcat上.最近我们把tomcat升级到了9.0.43.并且当服务重启时(tomcat是作为服务安装在windows上的)，抛出如下错误:

My service is deployed on tomcat. Recently we upgraded the tomcat to 9.0.43. And when the service is restarted (tomcat is installed on windows as a service), it throws the following error:

SEVERE [Thread-19] org.apache.catalina.core.ApplicationFilterConfig.release Failed to destroy the filter named [Tomcat WebSocket (JSR356) Filter] of type [org.apache.tomcat.websocket.server.WsFilter]
    java.lang.AbstractMethodError: Receiver class org.apache.tomcat.websocket.server.WsFilter does not define or inherit an implementation of the resolved method abstract destroy()V of interface javax.servlet.Filter.
        at org.apache.catalina.core.ApplicationFilterConfig.release(ApplicationFilterConfig.java:301)

我调查并找到了根本原因.之前在WsFilter.class下的tomcat-websocket.jar中有一个destroy方法实现lib\tomcat-websocket\org\apache\tomcat\websocket\server\WsFilter.class，现在丢失了.

I looked into and find the root cause. Earlier there was a destroy method implementation in tomcat-websocket.jar in the WsFilter.class under lib\tomcat-websocket\org\apache\tomcat\websocket\server\WsFilter.class, which is now missing.

我现在该如何进行?有什么想法吗?

推荐答案

自 Servlet 4.0 API 以来，Filter 接口有默认实现.检查您是否没有在应用程序中部署另一个(和更旧的)javax.servlet-api.jar.

Since Servlet 4.0 API the init and close methods of the Filter interface have default implementations. Check if you are not deploying another (and older) javax.servlet-api.jar with your application.

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