Review request for javax.imageio (Warning Cleanup Day)

[Danesh Dadachanji]

Hi,

Here's a webrev with cleanup in some classes in the javax.imageio 
package. I signed up for ImageReader and ImageWriter but cleaned up 
ImageIO as well.

Bug: Can someone make one please, thanks!
Webrev: 
http://icedtea.classpath.org/~ddadacha/warnings-cleanup-javax-imageio/

I've missed a few warnings in ImageReader and ImageWriter. Methods 
addToList and removeFromList (and all their calls) give unchecked cast 
warnings. I didn't want to change the method signatures but in doing so, 
casting the returns of these method calls still leaves an unchecked 
warning that I am not able to resolve. I'll try finding a solution and 
will submit another webrev once I get further.

Regards,
Danesh