Graal: Add an option to launch a native image without opening a console/terminal

[mbarbeaux]

Feature request

Please include the following information:

Is your feature request related to a problem? Please describe.
On Windows (maybe also on other systems, didn't check that), when creating a native image and then double-clicking the built executable, I couldn't find a way to not display a console/terminal (for example, when your native image opens a window/GUI with Swing/JavaFX/SWT).

The additionnal option should behave the same way the "javaw" command works on Windows : being able to start the program without opening a console/terminal if your program doesn't need it.

Describe the solution you'd like.
An option while calling native-image ?

Describe who do you think will benefit the most.
GraalVM users that doesn't need a console/terminal to open each time they double-click their native-image program (programs with GUI, services in background, etc)

Describe alternatives you've considered.
None

Additional context.
Example SWT Hello world project : https://github.com/mbarbeaux/graalvm-swt-native-image/
Just set your JAVA_HOME to a GraalVM 20.0.0 java8 on Windows, and then do mvnw.cmd -Pnative clean package to build the native image, and double click the result. A console prompt opens and stays in background of the SWT window. If you close the console prompt, programs is stopped.

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[Barteks2x]

This is the answer I got on slack and I don't know why it's not mentioned here, so leaving it here, for anyone else who runs into this issue

The compiled executable can be easily modified with a tool that comes with windows SDK:

EDITBIN /SUBSYSTEM:WINDOWS executable.exe

I was able to get it working by tunning that command on the already built executable.