Comment
Above in this comment thread:
Open Source Document Management Solutions Written in Java » Knowledge Tree seems to really be a PHP app...
This site conforms to the following standards:
Well thanks for correcting me. So long as the document repository is written in java then it belongs to the list. Also, I guess I'm willing to let the fact slide that many of the tools use a database (i.e. MySQL) that is not written in Java.
Carlos