I have now added the missing license headers.
Updated RAT output here 
I used the following options in case someone wants to try it in the future.
-e *gitignore -e *xml -e TODO -e README* -e *html -e EXAMPLES -d
On Thu, Oct 25, 2012 at 9:01 PM, Rajith Attapattu <rajit...@gmail.com> wrote:
> The following RAT output shows that we are missing a few license
> headers, mostly java files.
> We need to fix them before releasing.
> Unfortunately I need to step out now.
> If somebody hasn't gotten to it by tomorrow morning, I can take care of it.
> P.S There is an option in RAT "-a" that will automatically add the
> license header.
> This could potentially mess up cmake files. So be careful :)
>  http://creadur.apache.org/rat/
>  http://people.apache.org/~rajith/proton/proton-rat-output.txt