The Problem Have you ever been working on a web application and had to switch to another application. Possibly you need to fix a bug in another application or maybe the first application needs to talk to the second application, it doesn’t really matter but you know that you need to run a second application now. You start to launch the application and you get a nice error message saying that the port is already taken because your organization has standardized on all applications launching on port 8080 and the first application is still running on that port.