The flink-dist jar contains unshaded netty jar

io/netty/handler/codec/http/router/
io/netty/handler/codec/http/router/BadClientSilencer.class
io/netty/handler/codec/http/router/MethodRouted.class
io/netty/handler/codec/http/router/Handler.class
io/netty/handler/codec/http/router/Router.class
io/netty/handler/codec/http/router/DualMethodRouter.class
io/netty/handler/codec/http/router/Routed.class
io/netty/handler/codec/http/router/AbstractHandler.class
io/netty/handler/codec/http/router/KeepAliveWrite.class
io/netty/handler/codec/http/router/DualAbstractHandler.class
io/netty/handler/codec/http/router/MethodRouter.class

org/jboss/netty/util/internal/jzlib/InfBlocks.class
org/jboss/netty/util/internal/jzlib/InfCodes.class
org/jboss/netty/util/internal/jzlib/InfTree.class
org/jboss/netty/util/internal/jzlib/Inflate$1.class
org/jboss/netty/util/internal/jzlib/Inflate.class
org/jboss/netty/util/internal/jzlib/JZlib$WrapperType.class
org/jboss/netty/util/internal/jzlib/JZlib.class
org/jboss/netty/util/internal/jzlib/StaticTree.class
org/jboss/netty/util/internal/jzlib/Tree.class
org/jboss/netty/util/internal/jzlib/ZStream$1.class
org/jboss/netty/util/internal/jzlib/ZStream.class