2026-07-02 14:01:50.651 ERROR 3712 --- [nio-3004-exec-2] o.a.c.c.C.[.[.[/].[dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed: org.springframework.web.socket.server.HandshakeFailureException: Uncaught failure for request http://localhost:3004/ws/web?token=ac01ba-3ecb-4192-9600-97ed4105ee28 - No 'jakarta.websocket.server.ServerContainer' ServletContext attribute. Are you running in a Servlet container that supports JSR-356?] with root cause
java.lang.IllegalArgumentException: No 'jakarta.websocket.server.ServerContainer' ServletContext attribute. Are you running in a Servlet container that supports JSR-356?
at org.springframework.util.Assert.notNull(Assert.java:172) ~[spring-core-6.1.5.jar:6.1.5]
at org.springframework.web.socket.server.standard.AbstractStandardUpgradeStrategy.getContainer(AbstractStandardUpgradeStrategy.java:70) ~[spring-websocket-6.1.5.jar:6.1.5]