Unlike IDEA, which has options for using existing sources, STS doesn't look like it has options to use an existing project. I don't want to create a new project's source folders and bin folders. I already have a Maven POM and I want STS to just use that. How do I do that without messing up my existing project?
Thanks
Could you try to do 'File/Import', you must see this menu entry:
If it's a maven project you can import using POM ('Maven Projects'), if it's an eclipse project you can use 'Existing Projects into Workspace'.