From: Tang Yong <tangyong_at_cn.fujitsu.com>
Date: Mon, 25 Mar 2013 23:39:02 +0900

Hi Snjezana

Glassfish Updating Center does not still work while using proxy server.

Whether I pre-config proxy host/port in domain.xml or config proxy
setting from admin-gui, Updating Center does not still work.

From gui, once you set "Proxy Host:"/"Proxy Port: " and clicked "save"
button, the following info is displayed,

"An error has occurred"

In server.log, the following exception happened,

[2013-03-25T23:35:10.609+0900] [glassfish 4.0] [INFO] []
[org.glassfish.admingui] [tid: _ThreadID=42
_ThreadName=admin-listener(2)] [timeMillis: 1364222110609] [levelValue:
800] [[
  Exception Occurred :null]]

I have reported the issue(GLASSFISH-19027) previously, however, having
not any confirmation and reply.

I wish the issue can fix as soon as possible because this issue has an
effect on users.

Thanks
--Tang