Connection testing tool

Description:
The tool is needed for bandwidth/network testing. It should be developed as a servlet and could work outside of OpenMeetings. The client side of the tool will be used by the OpenMeetings flash part and reproduced by special indicators set. These indicators will show the connection state info:

1) availability of a required port;
2) download/upload speed;
3) ping time;
4) connection availability (the result of the check if it is possible to connect to rtmp, rtmpt and rtmps).

There are 4 types of indicators: green, red, orange and gray.
1) green: the tested parameter is ok (e.g port is connectible).
2) red: something is bad (e.g. downloading is broken).
3) orange: the test is running now.
4) gray: the test has not been executed yet.

Screenshot:

It will be soon, but here is the first version of the tool (it is inconsistent a bit with the description above):