What I expected to happen was Items and The players arm have a dwing animation in first person. But What happend was there was no swing animation, this may not be a bug but please see the video.
(Sorry for my bad English, English isn't my first language)
The Video Quality is really bad because i have to make it under 10 MB.
Environment
Mac OSX Version 10.10.5 Java Version: Java 8 update 77
This issue duplicates MC-99396