<dependency>
<groupId>org.grails</groupId>
<artifactId>grails-async</artifactId>
<version>2.3.0.RC2</version>
</dependency>
compile
|-- org.codehaus.gpars:gpars:1.1.0
|-- org.slf4j:jcl-over-slf4j:1.7.5
test
|-- org.spockframework:spock-core:0.7-groovy-2.0
|-- junit:junit:4.11