REG : System JRE entry is missing in Java Control Panel->JNLP Runtime Settings->system tab

Tested OS : All
Tested build : 6U10 b26 PIT

steps to reproduce :
1. Install JRE bundle
2. launch java control panel
3. go to java tab
4. click view button from Java Application Runtime Settings
5. select system tab

There is no system JRE entry listed on Windows.
On Solaris, linux the entry is listed initially. When the ok button is clicked on java control panel and relaunched, the entry is lost.

Note : It is a regression from b26 PIT.
Image file attached.