Merge "Added extra validation for invalid paths." into nyc-dev

                break;

            }

        }

        if (internalRoot == null) {

            // Should not happen on normal circumstances, unless app crafted an invalid volume

            // using reflection or the list of mounted volumes changed.

            Log.e(TAG, "Didn't find right volume for '" + storageVolume.dump() + "' on " + volumes);

            return false;

        }

        // Checks if the user has granted the permission already.

        final Intent intent = getIntentForExistingPermission(activity, isRoot, internalRoot, file);