JDK 7 build 24 is available at the openjdk.java.net website

[Arnd-Hendrik Mathias]

Ah, so thanks a lot! Is there some way to get informed as soon as the 
fix is available?

Anthony Petrov wrote:
> Concerning the libpng trouble at the 64-bit environment: this is a 
> known issue, and it had already been fixed, though not integrated yet. 
> I hope that it will hit the master repository as soon as pushes are 
> allowed.
>
> PS. Yes, even Sun employees cannot push their fixes into the JDK 7 
> yet. :)