Burp extension to delete all cookies in jar

delete-cookies.kt

package burp

class BurpExtender: IBurpExtender {
    override fun registerExtenderCallbacks(callbacks: IBurpExtenderCallbacks) {
        for (cookie in callbacks.cookieJarContents) {
            callbacks.printOutput("${cookie.domain} ${cookie.path} ${cookie.name}")
            callbacks.updateCookieJar(CookieNullValue(cookie))
        }
    }
}

class CookieNullValue(val cookie: ICookie): ICookie {
    override val domain = cookie.domain
    override val expiration = cookie.expiration
    override val name = cookie.name
    override val path = cookie.path
    override val value: String? = null
}