Facing issues with Jetty daemon with Gradle 2.12

I have a simple hello world war.

In my build.gradle - I have applied the war and jetty plugin and it looks something along the following lines:

apply plugin: 'java’
apply plugin: 'eclipse’
apply plugin: 'jetty’
apply plugin: ‘war’

jettyRunWar {
daemon = 'true’
stopPort = 8090
stopKey = ‘stopKey’
httpPort = 8080

why I run:
$>./gradlew jettyRunWar

However I don’t see Jetty run.

However if I comment out daemon=‘true’ - then jetty server is started and the gradle task jettyRunWar is blocked till the Jetty Server is stopped.

Any suggestions as to what I am doing wrong?