+ <dependency>
+ <groupId>io.netty</groupId>
+ <artifactId>netty-handler</artifactId>
+ <version>4.1.54.Final</version>
+ </dependency>
+ <dependency>
+ <groupId>io.netty</groupId>
+ <artifactId>netty-handler-proxy</artifactId>
+ <version>4.1.54.Final</version>
+ </dependency>