On the network settings and advanced network settings dialogue, extra text is read by the screen reader.

Steps to reproduce:
1. Run screen reader (JAWS)
2. Open Java Control Panel (JCP)
3. click Network Settings (You will hear Address colon port colon)
4. Select "Use Proxy Server" and click on Advanced (You will hear some unnecessary text .. colon colon... )

Expected result: You should not hear the whole text on the dialogues.