Online Java scratchpad like jsfiddle

I am looking for something like jsfiddle but for java, so that code snippets and classes can be shared and tested. At the moment, I am using a combination of pastebin and compileonline.com. I would rather not sign up for a huge online compiler service, just a quick and dirty code sharing/testing platform, that provides unique URL's for my code snippets. I have seen other people asking similar questions: https://stackoverflow.com/questions/15320286/is-there-online-compiler-for-java-like-jsfiddle But there doesn't seem to be just the right tool. Anyone provide any pointers?