About a week ago, I would try to open up a mod using Forge, and it would open up fine. Now, when I try to open it, the little hourglass sign shows up, and it disappears, and the launcher closes. Minecraft never opens. ex. I open up Minecraft, pick the right profile and everything, and hit play. The window closes (if i have the settings that way), and then I begin to wait for the window to appear that says Mojang, but it never does.
I ALWAYS use the installer, except for when getting SRC files for Eclipse (Might have something to do with it).
Random things I have noticed:
This doesn't happen if I have no mods installed.
No matter whether I have mods installed or not, previous versions don't work
This problem began shortly after I began using Eclipse
This happened around the same time as I updated my java to 8
I have done some research