Removing unwanted jar dependencies in the grails built war file

Peter Ledbrook shared a neat way of removing runtime dependency in the grails built war file. If for e.g. we wanted to exclude hsqldb
    grails.project.dependency.resolution = {
        inherits("global") {
            if (Environment.current == Environment.PRODUCTION) {
                exclude "hsqldb"
            }
        }
        ...
    }