Grails Ant Hudson auto deploy

<target name="staging.deploy">	
		<echo message="Stopping the server"/>
		<exec executable="${staging.directory}/etc/init.d/${staging.startstop}" dir="${staging.directory}">
			<arg line="stop"/>
		</exec>
		<echo message="Cleaning the environment"/>
		<exec executable="grails">
			<env key="JAVA_HOME" value="/usr/lib/jvm/java-6-sun/"/>
			<arg line="clean"/>
		</exec>
		<echo message="Starting the server"/>
		<exec executable="${staging.directory}/etc/init.d/${staging.startstop}" dir="${staging.directory}" spawn="true">
			<env key="BUILD_ID" value="dontKillMe" />
			<env key="JAVA_HOME" value="/usr/lib/jvm/java-6-sun/"/>
			<arg line="start"/>
		</exec>
		<echo message="Checking and waiting on port ${staging.port}"/>
		<waitfor maxwait="120" maxwaitunit="second" checkevery="5" checkeveryunit="second" timeoutproperty="deploy.failed">
			<socket server="localhost" port="${staging.port}"/>
		</waitfor>
		<fail if="deploy.failed" message="Timed out waiting for deploy"/>
	</target>