NSConcreteData Leak for dataWithContentsOfURL

[David Moore]

FYI:

I got confirmation from Apple today that this is a known issue.  Bug
ID# 6824585

Using NSData dataWithContentsOfURL: causes a NSConcreteData leak:
- (void) getImageForUrl:(NSURL *)imageURL {
NSData *data = [NSData dataWithContentsOfURL:imageURL];
}

Workaround:  This has no leak:
 NSData *data = [NSData dataWithContentsOfURL:imageURL options:
(NSUInteger) nil error:nil];

The initWithContentsOfURL: has the same problem.


---------- Forwarded message ----------
From: M Jethwa <milesh.jet...@googlemail.com>
Date: Sep 5, 5:37 am
Subject: Leak with NSDictionary
To: iPhone Application Development Auditors


Hi,
Is this one of the Presence assignments that shows a list of people
with a picture?
I get a NSConcreteData leak when I attempt to load shaq's picture from
the URL (in Stanford's JSON data) to NSData. Stanford's data is a bit
out of date. (TwitterHelper has a switch that by default loads data
from Stanford's test server so that you do not hit any request limit
problems with Twitter).

If I type the picture URL in a browser it returns some XML instead of
a picture and this maybe catches out the NSData method to load from a
URL.
But that is the only leak I get and the NSData object remains 'nil'
and any further actions on it do not error.

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[Sukima]

Wow That is really useful to know Thanks!!