mcc = createModelControllerClient();
CoreJBossASClient client = new CoreJBossASClient(mcc);
boolean isDeployed = client.isExtension(RHQ_EXTENSION_NAME);
if (!isDeployed) {
log("Installing RHQ EAR startup subsystem extension");
client.addExtension(RHQ_EXTENSION_NAME);
} else {
log("RHQ EAR startup subsystem extension is already deployed");
}
} finally {
MCCHelper.safeClose(mcc);