               A CONTROLLED EXPERIMENT ON SOFTWARE CLONES
                  - Source Code for the Pacman Tasks -

These are the modified source code variants of Pacman, that were used in the
controlled experiment on software clones by Harder and Tiarks. 

The three variants are based on the Java implementation of FrozenBubble by 
Ramsey Kant. For more information visit: http://code.google.com/p/pacman-rkant/

What's in the folders:

  * bug-free-cloned: 
      This variant has been slightly modified for the experiment. Some renamings
      and refactorings were applied to the code. It does not contain the bug.
      The clones are real clones from the original code.
      
  * cloned-bug:
      This variant contains the same bug at two locations. Each occurrence of
      the bug causes one symptom.
      
  * non-cloned-bug:
      In this variant the clone was removed with an refactoring. It has the same
      bug, which only appears in one location. This bug causes both symptoms.