Guys,
It is not OK to blindly replace a copyright header with another one.
One must at least make sure that:
- the original copyright date is not erased
- copyright holders included in the header are not removed
For the date, if a file was initially created in 2007 and updated this year (or any other
year in between), the reference will then be 2007-2011
See
http://community.jboss.org/wiki/CopyrightOwnershipandLicenses for more info.