You gotta use the direct link (you're currently using an album view link)
Depending on browser, right click your image, select "Copy image location", and it'll spit out something like...
https://i.imgur.com/WXTyh8O.jpgwhich has your direct image extension (.jpg)
If jsp doesn't resize it, you can use Imgur to resize it by pressing "edit" if it's your own account and manually typing in your pixel resolution (jsp's max resolution for avatars is 64x64)