title: Spotbugs on a single file?
body: <p>I am using Spotbugs plugin within Eclipse IDE. I can run the Spotbugs over a whole project, which gives me the impression that the tool needs to build the project to present its analysis report.</p>
  
  <p>But the documentation says that it's a static analysis tool. </p>
  
  <p>So, I was curious if it requires to build the project, then can we call it a Static Analysis Tool?
  And if it doesn't require to build the project, can we run Spotbugs on single .java files?</p>