Here are the steps required to reproduce the issue and subsequent increases in memory:
 
1. open http://localhost:8080/auctionMonitor/
Task Manager (IExplore.exe): Memory Usage ~ 43000 k

2. Click on "Application Link"
Task Manager (IExplore.exe): Memory Usage ~ 52500 k

3. Close Popup Window
Task Manager (IExplore.exe): Memory Usage ~ 47300 k

4. Click on "Application Link"
Task Manager (IExplore.exe): Memory Usage ~ 54000 k

5. Close Popup Window
Task Manager (IExplore.exe): Memory Usage ~ 49200 k

Repeating the last two steps over and over again leads to a steady increase in memory with all browsers. When the browser window is closed, all process memory is released.

Attached is a modified AuctionMonitor.jspx containing the following code to open the new window popup:

<ice:commandLink window.open('index.jsp','secondAppWindow','status=no,resizable=no,scrollbars=no,toolbar=no,menubar=no,top=0,left=0,width=1024,height=738');">