A DESCRIPTION OF THE REQUEST :
I am requesting the addition of a JFrame property that specifies whether when the JFrame is made visible it should display an icon in the taskbar (and show up in the ALT-TAB window listing). Currently one can achieve something similar by using JDialog but JDialog is simply using an invisible JFrame as an owner and this is problematic because any component having an invisible JFrame as an owner cannot have keyboard focus.

For example, it is impossible to have a JPopupMenu with an invisible owner and keyboard navigation working.

A visible JFrame with no icon maps to the extended window style WS_EX_TOOLWINDOW under windows.

JUSTIFICATION :
JPopupMenu and other lightweight components with no visible owner require this functionality.
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