4.0.0 io.openvidu openvidu-roles-java 2.27.0 jar openvidu-roles-java https://github.com/OpenVidu/openvidu-tutorials/tree/master/openvidu-roles-java org.springframework.boot spring-boot-starter-parent 2.1.4.RELEASE UTF-8 1.8 io.openvidu.js.java.App openvidu org.springframework.boot spring-boot-maven-plugin junit junit test org.springframework.boot spring-boot-starter-web org.springframework.boot spring-boot-devtools org.json json 20231013 io.livekit livekit-server 0.5.7