title: Java Open Source Projects to be used in teaching
body: <p>I'm trying to assemble a workshop on OOP using Java and one of the things I want to try is to do a sort of autopsy of an application. </p>
  
  <p>The ideia is to show the advantages os OOP through a real-life example of one, or more, complex applications.</p>
  
  <p>My question is: can you sugest a good open-source java project, that is currently under development, and as a bonus is a application that is useful for college students.</p>
  
  <p>Thanks in advance</p>
  
  <p>Ricardo Gomes</p>