JNFA - is a netflow analyzer. It uses MySQL database to store accounting information. Filters, used in the JNFA, allows very flexible classificate any kind of traffic and store it in the differend fields in database.
JavaNetflow Collect/Analyzer uses pure Java to collect netflow v1 v5 v7 v8 v9 UDP packets from cisco routers. It stores both raw data or analyzed contents to DB thru JDBC and can be used in large enterprises or ISPs. JNC beta is ready JNA is underway.
Netflow analyzing tools :
JXColl - collector for Netflow (or XML specified) data
Analyzer - front-end application for providing an user interface and output (graphs, statistics, etc.)