@Override
    public DeploymentSpec getDeploymentSpec() {
        if (deploymentSpec != null) return deploymentSpec;
        return deploymentSpec = parseDeploymentSpec(false);
    }
Represents an application residing in zookeeper.

@author Tony Vaagenes
configserver/src/main/java/com/yahoo/vespa/config/server/zookeeper/ZKApplicationPackage.java