Sun's use of GPL and/or debian source

[Sean 'Shaleh' Perry]

You are making the assumption Sun did any work.  There is a good chance
that the sources they used had the debian/ build info because quite a
few sources ship that way from the upstream or are easily available from
the upstream in this way.

Beyond that, this is the double edged sword of Open Source.  Companies
are allowed to use the code for their own ends as long as they follow
the letter of the license involved.  Licenses which protect against this
are marked non-free.