A maven trick

I was playing around with STS, adding Grails to it for my own purposes. I don't know if this messed things up or not, but when I went to run one of my other spring projects, it came up with this error:

java.lang.NoClassDefFoundError: org/junit/runner/notification/StoppedByUserException

I removed the Grails plug-in, but still got the same error. A clean didn't help either.

Here's what did:

Open a terminal window, navigate to the top level of the directory of your project, and type:

mvn eclipse:clean
mvn clean
mvn eclipse:eclipse

Then refresh the project STS, navigate to your junit test and run as such, and you're back in business.