android save files into internal data folder

Question

My app saves some files into data/data folders on device. After saving that remote files, I handle that files copying them into other folders. All is working properly on all devices tested previously but on galaxy s3 generates a nullPointer exception. Seems that I am not allowed to write or handle files on that folder! but only with new galaxy s3! I am also not able to find any file on data folder using eclipse ddms file explorer while in simulator (same android version) I can see properly all app files! What can be different on galaxy s3? Thank you

Answer 1

- Thats the Security feature of Android.

- You can easily peek into the data folder of an Emulator, but Not of an Android Phone.

- If peeking into the data folder of an Android Phone was this easy, then anyone could get the access to the DataBase, etc

Till now i have tested this on Galaxy S2 , HTC Explorer , Galaxy Note , all were NON-ROOTED.