[cle-release-team] [sakai2-tcc] Java 6 EOL

[Earle Nietzel]

Hey all,

I have been compiling sakai-trunk-all with Sun JDK 7 and OpenJDK 7 fine for
a while now.
There were some changes I had to make which I haven't shared back yet, but
nothing out of the ordinary.

If you check out 2.9.x (not 2.9.x-all) you should be able to build
completely with JDK 7 and not have any issues.
I have also done some minimal testing with most tools and everything seems
to be fine. Of course more rigorous testing is in order which I have heard
of a nightly qa server with OpenJDK 7 being suggested.

Also I have not had any issues specific to OpenJDK. According to Mark
Reinholdt, Chief Java Architect at Oracle, he says OpenJDK is 99.8% the
same source code as the Oracle released version. The main differences are
related to audio codec and some SVGA stuff that they couldn't open source.

I believe Oracle feels that there is no reason to have a separate package
other than the OpenJDK for linux systems, which is why they are
discontinuing producing an Oracle package for those systems.

All in all I feel like we are moving towards using JDK 7 and Tomcat 7 in
general.

Earle

On Tue, Feb 14, 2012 at 12:27 PM, Noah Botimer <botimer at umich.edu> wrote:

> I did try to upgrade the source/target versions to 1.6 the other day.
> Compiling failed mysteriously and spectacularly about some UTF-16 (I think)
> characters in the source.
>
> I tried to resolve it for a couple of files and was successful by removing
> the lines where they were in comments, just to see if I could pass.
> Clearly, this is not the right solution, but I didn't have time to research
> it properly. It's probably anywhere from 2-10 hours to research, find, fix,
> test. Unless someone knows the full story already.
>
> This doesn't mean we couldn't upgrade the JDK; just need to keep
> source/target at 1.5 for now.
>
> Thanks,
> -Noah
>
> On Feb 14, 2012, at 12:17 PM, Matthew Jones wrote:
>
> Yea, I saw this EOL too, sneaking up fast!
>
> The Maven enforcer plugin in Sakai 2.9 is requiring Java 1.6 as of 2.9-a02
>
>
> <requireJavaVersion>
>   <version>1.6</version>
>
>
> </requireJavaVersion>
>
> However it looks like the compiler plugin is still targeting 1.5
>
> <configuration>
>
>   <source>1.5</source>
>   <target>1.5</target>
> </configuration>
>
> Lately I've been compiling and running trunk under open-jdk and that's
> been working fine. I haven't heard if anyone has tried with Oracle's
> Java-7. Certainly we should know if it works or not as 6 outside of OpenJDK
> will be harder to find.
>
> I guess it's worth noting that Java 5 went EOL on Oct 2009, but we
> actually aren't going to have a release where this is strictly enforced
> until 2012, though it was recommended for the release in 2011 (2.8) and
> many ran it fine with a few JAVA_OPTS against the release from 2010 (2.7) .
> . . Still a year after EOL.
>
> Ref:
> https://source.sakaiproject.org/svn/master/trunk/pom.xml
> https://jira.sakaiproject.org/browse/SAK-20089
>
>
>
> On Tue, Feb 14, 2012 at 11:53 AM, Beth Kirschner <bkirschn at umich.edu>wrote:
>
>> Java 6 is slated for EOL in July 2012 and I can't remember if we've
>> discussed this before? Are we currently building with Java 6? Should we
>> consider Java 7 in compatibility mode for Java 6?
>>
>> http://www.oracle.com/technetwork/java/eol-135779.html
>>
>> - Beth
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