API for Transparent Windows in JDK7?

[Rob Ross]

I know that window transparency is currently supported on the Mac and  
Windows, through different mechanisms. (E.g., com.sun.awt.AWTUtilities  
on Windows.)

It has also been stated in numerous places that this would finally  
have a common, public API in the next "major" release of the platform.

So my question is, will this be part of JDK7?

Thanks!

Rob