Transparent proxy excemptions

[ap1821]

Hi. This should be easy to answer, but I couldn't stop thinking how this might work actually, so I did post here.
For unknown reason I am unable to install any Java updates trough transparent proxy, altrough offline installer does well. To fix this maybe I could bypass proxy for whole java.com or sun.com domain, but will this work if I add transparent proxy excemption? Will this work for all subdomains of java.com?
Thanks!

[ap1821]

I tried to add sun.com and javadl-esd.sun.com to excemptions, but still external-access.log shows up that the url is going trough proxy.
The java updates fails to get javadl-esd.sun.com/update/1.7.0/1.7.0_45-b18.xml (currently), but with the browser the xml file opens ok. This issue can be found on the internet, but I havent got to know any solutions. Only thing that came into mind was to bypass the transparent proxy and in that way to get it working.