Thank you Marco, adding the line
-Dsnap.log.level=OFF
in the file ‘gpt.vmoptions’ effectively suppress the gpt logging in the console.
I do confirm that inserting it directly in the command line does not work.
I am pleasantly surprised by the addition of the progress log in the console when using gpt, is it a new feature in SNAP 5.0.1?
Kind regards,
Federico