Technic Launcher Closes Before it can launch a pack.

[8XJ]

So I wanted to play some Technic, and so I went onto the launcher and I saw a Star Wars pack, I downloaded it and tried to launch it but it crashed, and came back, then when I put the right java on it just closed before it could open. (I allocated 5 GB), here is the most recent crash log, this happens every time. https://pastebin.com/zJPyvBaN

[JaariAtmc]

Downgrade your Java to 8u25.