nic.groovy

        // Create the updated device spec
        VirtualDeviceConfigSpec nicSpec = new VirtualDeviceConfigSpec()
        nicSpec.device = nic
        nicSpec.operation = VirtualDeviceConfigSpecOperation.edit

        // Create the VM update spec
        VirtualMachineConfigSpec spec = new VirtualMachineConfigSpec()
        spec.deviceChange = [nicSpec]

        // Do the update
        try {
            Task task = virtualMachine.reconfigVM_Task(spec)

            // Wait for it to complete
            task.waitForMe()
        }