Latest version of io.netty:netty-handler
https://javadoc.io/doc/io.netty/netty-handler
Current version 4.2.0.Alpha4
https://javadoc.io/doc/io.netty/netty-handler/4.2.0.Alpha4
package-list path (used for javadoc generation -link option)
https://javadoc.io/doc/io.netty/netty-handler/4.2.0.Alpha4/package-list