This is related to bug 65480. I can duplicate this issue – crashing in twitch libraries – in unmodified vanilla 1.7.10.
It is not consistent.
Comments 6
That it doesn't meet the requirements for twitch does not mean that it should crash.
Keep in mind: It is not crashing because I try to stream and the twitch libraries need a newer OS. It is crashing even when I don't use twitch.
Your system does not meet the minimum requirements to run TwitchTV:
Minimum Requirements for streaming: Windows: 7 (32 or 64bit) or newer and Mac: 10.8 (64bit only) or newer.
Windows XP is not supported by Twitch and it is recommended you upgrade your operating system as Microsoft will be dropping support for XP on April 08, 2014.
Linux streaming is currently unsupported as the appropriate Java libraries have not been released by Twitch at this time.
OpenGL 1.5 is also currently required for Twitch streaming. If you have not please update graphics card drivers here or obtain a newer video card with the minimum requirements, OpenGL 2.1 recommended to support future versions of MC.
Again, you are missing the key point.
Vanilla minecraft crashes in the twitch libraries even when I am not trying to use twitch! *
Do I meet the minimum needed to stream? No.
Should minecraft crash? No.
Should I get a "Your system cannot stream" box if I try to stream? Sure.
Should minecraft crash if I try to stream? No.
Should I get a crash, while not even trying to stream? "Sorry, your system is not up to date, so a crash when not trying to stream is not Mojang's fault"? Is that what you mean by "Invalid"?
So ... this may need to be closed anyways, as "resolved".
I was playing around with 1.7.10, and ... low and behold, not only is it not crashing, I was actually able to stream. From 10.7.5.
Twitched complained that my stream quality was only acceptable, not constant bit rate.
But –
1. The crashing is gone.
2. It actually works! It works as well as anything else I've managed to get to work on 10.7.5.
Maybe I need 10.8 to do constant bit rate encoding; in any case, it seems to be stable/functional/no longer crashing.
Your computer doesn't meet the minimum requirements to run Twitch, which can be found here: https://help.mojang.com/customer/portal/articles/1374789-twitch-integration-in-minecraft