title: What does "Hot Swap error" with IntelliJ (in Java) mean?
body: <p>I have no idea what a hot swap is and for the life of me cannot construct a google search that will find what it means in the context of my program. I was editing my class, the same way I do all the time, and when I went to run it I all of a sudden got a </p>
  
  <blockquote>
    <p>Hot Swap failed: myClassName: schema not implemented</p>
  </blockquote>
  
  <p>error.</p>
  
  <p>Can anyone explain this to me in Layman's terms?</p>