Maven project not being treated as Java in Eclipse

Question

I\'m working on a project that has lots of different Maven projects. I\'ve been doing a bunch of JUnit testing on these projects, and usually this goes well. I open up Eclipse

Answer 1

If you have tried Amos M. Carpenter's solutions on the .project and didn't work, go to Project -> Properties -> Project Nature and Add... Java, Apply and Close button.

Answer 2

Right-click on Project -> Properties -> Project Facets, then choose all facets that apply for your case (e.g. java).