Java - Get a list of wireless networks in a range

I am trying to get a list of wireless networks within range of a user. I would like the program to be able to get the SSID (if broadcast), security type (WEP, WPA, WPA2) and, possibly, a couple of other pieces of information. I want to make the whole project through java because of its independence from the platform, but I will have a mechanism for handling the OS, since I heard that this could be a problem. First, I would like to run it on Windows. My problem is getting information.
   I heard about jWlanScan, but I cannot find a way to call methods in my code. I have wlanscan.jar as a library in my project. Any help would be greatly appreciated.