Latest version of io.netty:netty-transport
https://javadoc.io/doc/io.netty/netty-transport
Current version 4.0.0.CR4
https://javadoc.io/doc/io.netty/netty-transport/4.0.0.CR4
package-list path (used for javadoc generation -link option)
https://javadoc.io/doc/io.netty/netty-transport/4.0.0.CR4/package-list