java - gradle jetty plugin does not stop when using daemon=true in jettyRun -

i'm using following gradle script simple web application:

apply plugin: 'war' apply plugin: 'jetty'  repositories {    mavencentral() }  dependencies {    providedcompile deps['servlet-api']    providedcompile deps['commons-io']    providedcompile deps['gson'] }  jettyrun {    contextpath = "/"    httpport = 8900    stopport = 9800    stopkey = "pleasestop"    daemon = true }  jettystop {    stopport = 9800    stopkey = "pleasestop" } 

when run jettyrun app works when run jettystop not stop. if change daemon false jettystop stop embedded jetty server.

how can stop embedded jetty server when use in daemon mode?