ServiceAssembly sa = deployer.getServiceAssembly(name);
        if (sa == null) {
            throw ManagementSupport.failure("shutdown", "Service assembly does not exist: " + name);
        }
        try {
            sa.shutDown();
            return ManagementSupport.createSuccessMessage("Service assembly shut down", name);
        } catch (Throwable e) {
            throw ManagementSupport.failure("shutdownServiceAssembly", name, e);
        }
    }