In the following cases, the focus is always back to the incorrect window so
it forces user to do the extra action to click back to the right window.

On Java tab in Preferences:
 - when closing Open dialog from Choose button
 - when closing JRE Finder from Find button

On Advanced tab in Preference:
 - when closing Open dialog from Choose Log File Name

On Root Certificates tab in Preferences:
 - when closing Open dialog from Import button