Open Radar

 
Summary:
If I set a value with UIAApplication.setPreferencesValueForKey, I expect to be able to see that value appear in my NSUserDefaults.

> setPreferencesValueForKey
>> Sets the value of a specified app user preference.

This works in iOS 6 and iOS 7.

It works on the iOS 6 - 8 Simulators.

It does not work on iOS GM.

Possibly related to:

* rdar://18296714
* rdar://17821465
* rdar://15530604
* rdar://18310483

Steps to Reproduce:
### To Reproduce

**Requires**

* iOS 8 GM device
* The source code of an iOS app.
* Instruments 6 GM

1.  In the UIApplicationDelegete application:didFinishLaunchingWithOptions: method add the following code to log the NSUserDefaults

```
  NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
  [defaults synchronize];
  NSDictionary *dictionary = [defaults dictionaryRepresentation];
  NSData *data = [NSJSONSerialization dataWithJSONObject:dictionary
                                                 options:NSJSONWritingPrettyPrinted
                                                   error:nil];
  NSString *string = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];

  NSLog(@"defaults = %@", string);
```
2. Launch Instruments 6 GM and select the Automation template.
3. Target the iOS 8 GM device and select an app to target.
4. Execute this script

```
var target = UIATarget.localTarget();

// This value never appears in NSUserDefaults standardUserDefaults
target.frontMostApp().setPreferencesValueForKey("value", "com.example.set-in-uia-automation")
var valueSetByScript  = target.frontMostApp().preferencesValueForKey("com.example.set-in-uia-automation")
if (valueSetByScript == "value") {
    UIALogger.logPass("The value I set in UIAutomation was '" + valueSetByScript + "'");
} else {
    UIALogger.logFail("Expected to see 'value' but found '" + valueSetByScript + "'");
}
```

5. Launch the app again, either from Xcode or Instruments and inspect the Console log.

Expected Results:
### Expected

I expected to see the key/value pair from the setPreferencesValueForKey in the console log.


Actual Results:
### Found

* Works on iOS 6 - 8 on simulators.
* Works on iOS 6 - 7 on devices.

On iOS 8 GM, the key/value pair does not appear in NSUserDefaults.


Version:
OS X 10.9.4 (13E28)
Xcode6 GM
instruments, version 6.0 (56156)
iOS 8 GM