io.undertow.websockets.jsr.ServerWebSocketContainer cannot be cast to org.apache.tomcat.websocket.server.WsServerContainer
問題產生原因是：pom引入的依賴包undertow與websocket依賴包中的tomcat沖突了導致,如下： 解決方案： ...
原文：ClassCastException: org.apache.tomcat.websocket.server.WsServerContainer cannot be cast to javax.websocket.server.ServerContainer
在stackflow上看到的解決方案： https: samebug.io exceptions java.lang.ClassCastException orgapachetomcatwebsocketserverwsservercontainer https: stackoverflow.com questions tomcat and websocket Maven: ...
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