If application is configured with additional launchers and there is no --icon option on the command line those additional launchers that don't have `icon` property set in their property files are configured without the default icon even though the default Java icon is assigned to the main launcher.

The behavior should be: if main launcher is assigned an icon, additional launchers should have the same icon assigned if they don't have `icon` property in their property files.
Setting `icon` property to empty value in launcher property file should result in no icon assigned to the launcher.