Updating JDK libraries to use Project Coin features

[Alan Bateman]

Joe Darcy wrote:
> :
> Yes, we plan to keep at least the javac portions of the langtools 
> repository buildable with JDK 6 for just such bootstrapping reasons.  
> For some time, we've had the constraint that javac in JDK (N+1) is 
> buildable with JDK N, which precludes use of new language features and 
> direct use of new libraries (reflection can be used for dynamic 
> lookups of course).
>
> -Joe
>
Also, Jon Gibbons has a blog entry on this topic which might be useful:

http://blogs.sun.com/jjg/entry/building_javac_for_jdk7