There are six files for netty-transport-native-epoll artifact in RHBQ 2.2.5 distribution:
netty-transport-native-epoll-4.1.67.Final-redhat-00002.jar
netty-transport-native-epoll-4.1.67.Final-redhat-00002-linux-x86_64.jar
netty-transport-native-epoll-4.1.69.Final-redhat-00001-linux-x86_64.jar
netty-transport-native-epoll-4.1.69.Final-redhat-00001.pom

Either version 4.1.67 is correct, but lacks a pom, or version 4.1.69 is correct, but lacks a jar.