I am not sure what you are using in Spring but I have been using Spring
3.x.x with Java 8 for some time.
I can believe that Spring 4 is "better" than Spring 3 but you might see
if you can separate these two technology upgrades just to keep it simple.
There is enough in Java 8 to make a pretty big project if you just look
at Streams and refactoring interfaces and abstract classes to reduce the
amount of code.
Just a comment from the cheap seats.
Ron
On 13/05/2016 1:10 PM, Rohit Yadav wrote:
All,
I've started some work [pr] that aims to adapt CloudStack to recent changes in
the environments and the ecosystem:
- Java8, Spring 4.x
- SystemD
- MariaDB and MySQL
- Reduce distro provided package dependency
- Packaging, CI and testing
These are long term goals but I've identified some concrete goals:
- Migrate to Java8 both for building codebase and running CloudStack (mgmt
server, usage, agent etc)
- Migrate to Spring 4.x as 3.x is not supported to work with Java7
- Fix CI and packaging to use Java8
- Reduce distro specific package dependency such as Tomcat, since we're already
using Jetty (maven-jetty-plugin) during development we can use embedded Jetty
for mgmt server(s) as well
- Update systemvm template to include Java8 JRE
- Update packaging to support systemd (CentOS7+ has some systemd support and
thanks to Wido's recent PR we would have systemd support for debian packages in
future too)
- Optimize JVM options for long running mgmt server(s), agent(s) and usage
server(s) to run on JRE8
I've sent a [pr] to show some initial progress in this regard where we've some
outstanding issues but we're able to build/run/test with Java8 + Spring 4.x and
TravisCI has been fixed to use JDK8 as well.
Testing in general would be a huge requirement for this initiative, especially
testing of all the plugins. Java7 has EOL-ed and Java9 is around the corner;
we've seen good amount of security and memory issues with Java7/6 and
Tomcat6.x; therefore it seems necessary to work on above as we move towards a
LTS release in upcoming months.
Request for comments, suggestions and guidance. Thanks.
[pr] https://github.com/apache/cloudstack/pull/1546
Regards.
Regards,
Rohit Yadav
rohit.ya...@shapeblue.com
www.shapeblue.com
53 Chandos Place, Covent Garden, London WC2N 4HSUK
@shapeblue
--
Ron Wheeler
President
Artifact Software Inc
email: rwhee...@artifact-software.com
skype: ronaldmwheeler
phone: 866-970-2435, ext 102
