4.0.0 org.springframework.boot spring-boot-starter-parent 4.1.1 com.ankurm sse-websocket 1.0 jar 25 UTF-8 org.springframework.boot spring-boot-starter-webmvc org.springframework.boot spring-boot-starter-websocket org.springframework.boot spring-boot-starter-jackson org.springframework.boot spring-boot-starter-test test org.springframework.boot spring-boot-maven-plugin