On 7/1/2011 1:23 AM, Knut Anders Hatlen wrote:
Mike Matrigali<[email protected]> writes:
Rick Hillegas wrote:
No-one on the user list has objected to sunsetting support for JVM
1.4 starting with Derby 10.9. There is still some interest in
supporting small devices on CDC/FP 1.1. Sunsetting support for JVM
1.4 would mean that we would stop running regression tests on that
platform (starting with Derby 10.9) and we would not spend a lot of
effort chasing problems on that platform.
Because we would continue supporting CDC/FP 1.1, we would not be
able to modernize the bulk of Derby code to take advantage of
language features introduced by Java 5. These features include
enums, annotations, and generics.
I would like to move ahead with sunsetting support for JVM 1.4. I'm
happy to call a formal vote to ratify this change if people think
that would be useful. What are your thoughts?
Thanks,
-Rick
I am not sure what it means in open source for such a vote. If anyone
wants to run tests and fix issues for JVM 1.4 or any other JVM that
seems fine to me. Individual contributors as always can decide which
features and bugs to work on. It would be different if we were
deciding to actively check
in things to the default Derby set of features that we know would not
work against JVM 1.4 architecture.
As I understand it nothing is changing.
The default set of Derby 10.9 is designed to work
against the JDK 1.4 spec, and allows extensions against more recent
specs for features designed to be "optional and/or enhanced".
I was hoping that if we agreed on not supporting Java 1.4 anymore, it
would allow us to start using Java 5 features in those areas of the code
that aren't used on Java ME. In particular, I was hoping that it opened
for the following improvements:
- Using Java 5 features in the client driver and the network server.
I am glad you mentioned this, because I hadn't really thought of it this
way. Does this mean that we are ruling out client on small devices in
the future? I am not sure that I (or anyone I know) has time to do
this but it seems like it would be useful.
