License in code contributions

[Rahul P Akolkar <ak...@us.ibm.com>]

I recently came across a code contribution for the RDC taglib [ 
http://issues.apache.org/bugzilla/show_bug.cgi?id=35740 ], which contains 
the

Copyright [yyyy] [name of copyright owner]

line in every file as pointed out in the Appendix at the bottom of [ 
http://www.apache.org/licenses/LICENSE-2.0.txt ]. It is followed by the 
ASL 2.0 as shown in the Appendix.

The appendix talks about "How to apply the Apache License to your work", 
does it also hold for code submitted for inclusion in existing Apache 
projects? While the above contribution may be useful, I wanted to check 
what the norm is within Taglibs (or Jakarta, or Apache) for allowing / 
denying contributions based on the copyright line mentioned above.

Thanks,
-Rahul