The latest vert.x snapshot seems not be compatible with the latest stable netty since netty4.0.7

       while testing, after replace the netty jar with the latest one(like 4.0.9 or 4.0.10), vert.x seems not be compatible with them and the testing cases tend to be fail.so any idea could be make up to satisfy the upgrading requirements once I've done the test under the latest standable enviroment.