title: How can I avoid the MarshalException for Java RMI?
body: <p>I just finished a small program with java rmi and somehow it doesn't work. Everytime I want to start the server I'm getting the MarshalException. Are there any important points that I should be aware of them on how to implement the interface for the remote method invocation? I thought it would be possible to create an implementation but also include some additional methods like a constructor or private variables inside of the implementing class.</p>
  
  <p>Shouldn't this just work?</p>
  
  <p>Greetings</p>