CGContextSetShadowWithColor not working

This code should be showing a shadow, but it isn't:

CGContextRef context = UIGraphicsGetCurrentContext();



//Border

CGMutablePathRef outerPath = createRoundedRectForRect(self.bounds, MENU_BUTTON_OUTER_RADIUS);



CGContextSetFillColorWithColor(context, [[UIColor colorWithWhite:0 alpha:0.18] CGColor]);

CGContextAddPath(context, outerPath);

CGContextFillPath(context);



//Button



UIColor *buttonColor;

if (self.type == JMenuButtonTypeBlack) {

    buttonColor = [UIColor colorWithWhite:0 alpha:1.0];

}

else if (self.type == JMenuButtonTypeWhite) {

    buttonColor = [UIColor colorWithWhite:0.72 alpha:1.0];

}



CGRect insideRect = rectForRectWithInset(self.bounds, 3);



CGMutablePathRef innerPath = createRoundedRectForRect(insideRect, MENU_BUTTON_INNER_RADIUS);

CGPoint gradientTop = CGPointMake(0, insideRect.origin.y);

CGPoint gradientBottom = CGPointMake(0, insideRect.origin.y + insideRect.size.height);



//Base color

CGContextSaveGState(context);

CGContextSetFillColorWithColor(context, [buttonColor CGColor]);

CGContextAddPath(context, innerPath);

CGContextFillPath(context);

CGContextRestoreGState(context);



//Gradient 1

CGContextSaveGState(context);



CGFloat colors [] = { 

    1.0, 1.0, 1.0, 0.16, 

    0.0, 0.0, 0.0, 0.11

};



CGColorSpaceRef baseSpace = CGColorSpaceCreateDeviceRGB();

CGGradientRef gradient = CGGradientCreateWithColorComponents(baseSpace, colors, NULL, 2);



CGContextAddPath(context, innerPath);

CGContextClip(context);



CGContextDrawLinearGradient(context, gradient, gradientTop, gradientBottom, 0);

CGGradientRelease(gradient), gradient = NULL;

CGColorSpaceRelease(baseSpace), baseSpace = NULL;



CGContextRestoreGState(context);





//Shadow

CGContextSaveGState(context);

CGContextAddPath(context, innerPath);

CGContextSetShadowWithColor(context, CGSizeMake(0, 2), 3.0, [[UIColor blackColor] CGColor]);

CGContextRestoreGState(context);

This is what it looks like so far. The shadow code doesn't make a difference: