JRE silent uninstall is not removing/deleting following registry entrie/key

HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft\Java Update\Policy
How to reproduce

1.) Install jre 6u10 in normal mode

2.) Uninstall jre 6u10 in normal mode

Observe registry path HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft. All are removed

3.) Install jre 6u10 in normal mode

4.) uninstall jre 6u10 in silent mode

  MsiExec.exe /q /X{26A24AE4-039D-4CA4-87B4-2F84A32160FF}

Observe registry path HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft. "\Java Update\Policy" still remains in the registry.

The uninstall should clean all the registry in silent mode as well. This could lead to an escaltion if not resolved.