JDK-8008377 : https dialog: 'More information' is open below the main dialog on Linux
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On Ubuntu 12.04 'more information; link in the https dialog opens a new dialog under the main one. On Windows it is open fine.
SQE-OK to get this issue fixed for 7u21
related to 7u21 security feature, filed by our SQE. (not security vulnerability fix)
although the underlying problem is in swing/awt - it is easy to safely work around in deployment code
This also happens to me on solaris when I run fdrom remote X11 Display - dialogs: Certificate, LaunchError all have sub dialogs behind main dialog, and only main dialog is always on top, so you cannot bring the secondary dialog above primary dialog.