

This problem usually comes up because another process wasn't properly terminated. In this short article, I will show you how to do it on macOS and link to another article I wrote on how to do this on Windows. I received a question from a reader that went like this "I get the port 8080 is already in use error from time to time and I am not sure how to fix it, what can I do?" This is actually pretty easy to fix and happens to all of us. Specifically, we saw that we got a really informative error message when we try and run an application and port 8080 is already in use. Last week I wrote an article on the improvements in Spring Boot 1.4 of startup errors. How to kill Java process on mac OS Sierra using Activity Monitor
