4.0.0 org.apache.skywalking optional-spring-cloud 8.1.0.2 apm-spring-cloud-gateway-2.1.x-plugin jar gateway-2.1.x-plugin http://maven.apache.org 2.1.1.RELEASE 1.8 org.springframework.cloud spring-cloud-starter-gateway ${spring-cloud-starter-gateway.version} provided io.projectreactor.netty reactor-netty 0.8.11.RELEASE provided