4.0.0 org.springframework.boot spring-boot-starter-parent 2.3.1.RELEASE gltronic tronio 0.0.1-SNAPSHOT tronio tronio game server 11 org.springframework.boot spring-boot-starter-web org.springframework.boot spring-boot-starter-websocket org.projectlombok lombok true org.springframework.boot spring-boot-starter-test test org.junit.vintage junit-vintage-engine org.json json 20200518 org.springframework.boot spring-boot-maven-plugin