title: javac does not output unicode on command line
body: <p>Context: Windows 10, cmd.exe, javac 9.0.1.</p>
  
  <p>I have unicode encoded source code. If I run <code>javac -encoding UTF-8 ...</code> and I have an error, I just can't get it to display the source correctly.</p>
  
  <p><a href="https://i.stack.imgur.com/7uYsQ.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/7uYsQ.png" alt="enter image description here"></a></p>
  
  <p>As you can see in the picture, the cli can print unicode chars just fine.</p>