Is there any \"adequate\" way to change system properties in Jenkins? What is the easiest/fastest way change them? For instance, I need to turn off the useless (in my case)
If you run Jenkins on windows as a service without tomcat, you can edit jenkins.xml. Add the property in before the -jar.
Than restart the service.
-Xrs -Xmx256m -Dhudson.lifecycle=hudson.lifecycle.WindowsServiceLifecycle -Dhudson.tasks.MailSender.SEND_TO_UNKNOWN_USERS=true -Dhudson.tasks.MailSender.SEND_TO_USERS_WITHOUT_READ=true -jar "%BASE%\jenkins.war" --httpPort=8080 --webroot="%BASE%\war"