iOS Some of the code in a custom init method is not being called

-(id)init
{
    self = [super init];
    if (self != nil) {
        NSURL *xmlURL = [[NSBundle mainBundle] URLForResource:@"exerciseInfo" withExtension:@"xml"];
        // Do some stuff that is related to the XML parser.
        xmlParser = [[NSXMLParser alloc] initWithContentsOfURL:xmlURL];
        [xmlParser setDelegate:self];
        [xmlParser parse];
        xmlElements = [[NSMutableArray alloc] init];  // There is a breakpoint here, but it never pauses when it is supposed to.  It's not set to be ignored at all, and "Automatically continue after evaluating" is not checked.
        unendedElements = [[NSMutableArray alloc] init];
    }
    return self;
}