Currently I'm starting a java application with
bash -c java -jar app.jar -config config.json
The app opens a window, displaying some output and closes. The output is also available on stdout, so I don't need (want) the GUI to display.
How can I prevent bash to forward the X output?
Follow up:
I'm running this in a go application, so based on el.pescado's answer, I have implemented this as:
func runcmd(cmd string, workdir string) ([]byte, error) {
ex := exec.Command("bash", "-c", cmd)
ex.Env = []string{"DISPLAY= "}
ex.Dir = workdir
return ex.Output()
}