Not able to connect HTTP web servers outside firewall

Hi
I unable to connect external web server from my java program.
Even I used follwing code to in my java program. I am getting
some problem with encoding the password(base64Encode)
Please anyone can give code to bypass this corporate firewall
from my program(I know the password and user name).
System.getProperties().put( "proxySet", "true" );
System.getProperties().put( "proxyHost", "myProxyMachineName" );
System.getProperties().put( "proxyPort", "85" );
URLConnection connection = url.openConnection();
String password = "username:password";
String encodedPassword = base64Encode( password );
connection.setRequestProperty( "Proxy-Authorization",
encodedPassword );
Avanti
null

Can you post this in the MapViewer forum ?
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