4.0.0 org.springframework.boot spring-boot-smoke-tests ${revision} spring-boot-smoke-test-websocket-undertow Spring Boot WebSocket Undertow Smoke Test Spring Boot WebSocket Undertow Smoke Test ${basedir}/../../.. org.springframework.boot spring-boot-starter-websocket org.springframework.boot spring-boot-starter-tomcat org.springframework.boot spring-boot-starter-undertow org.springframework.boot spring-boot-starter-test test org.springframework.boot spring-boot-maven-plugin