https://groups.google.com/forum/#!searchin/netty/netty$204.1/netty/8jf6SPFiN6g/nLg7opwUsxwJ

Now we can use 4.1, https://groups.google.com/d/msg/netty/8jf6SPFiN6g/hBaYJEioWJkJ
(cherry picked from commit 0ea9f4b)
we must avoid use UUID.randomUUID — can cause long network calls
(cherry picked from commit 421efd0)
attempt to fix IDEA-123132 Error: failed to create a child event loop
touch file to recompile
(cherry picked from commit 5972053)