[Building Sakai] The Switch to Java 1.6

Wed Mar 18 10:40:23 PDT 2009

AFAIK it's available for Leopard 10.5 by default (not sure about Tiger  
10.4).

I've had it for a while and didn't do anything special, it came  
through Software Updates a while back with a note saying that it would  
be installed but not active. Java 1.5 is the active one by default.

You can adjust this in Applications > Utilities > Java > Java  
Preferences

cheers,
Steve

---
Steve Swinsburg
Portal Systems Developer
Centre for e-Science
Lancaster University
Lancaster
LA1 4YT

email: s.swinsburg at lancaster.ac.uk
phone: +44 (0) 1524 594870

On 18 Mar 2009, at 17:37, Aaron Zeckoski wrote:

> Just a reminder that we held off on this before since OSX does not
> have Java 1.6 available yet (except beta). My personal opinion is that
> it would be ideal to not make things hard on the OSX developer
> community by putting 1.6 only java code in Sakai.
> I know that there are hacks to get 1.6 to work on OSX but I think we
> should wait for a supported relase. If there happens to be one and I
> am just unaware of it then someone feel free to shame me publicly.
> :-)
> -AZ
>
> On Wed, Mar 18, 2009 at 4:32 PM, Knoop, Peter <knoop at umich.edu> wrote:
>> Thanks for bringing this up, Seth.  There are a number of things  
>> we’ll have
>> to sort out here for Sakai 2.5 and 2.6 maintenance releases, Sakai  
>> 2.7.0 and
>> trunk, and Sakai 3.  I’ve created SAK-15874 to help track progress:
>>
>>
>>
>> http://jira.sakaiproject.org/jira/browse/SAK-15874
>>
>>
>>
>> Both Sakai 2.5.x and Sakai 2.6.0 have only been QA’ed with 1.5 to- 
>> date.  At
>> some point will need to transition to QA-ing on 1.6.  In the  
>> meantime, if
>> anyone is building and running Sakai 2.5.x or Sakai 2.6.x with 1.6 in
>> production, could you please comment on SAK-15874 about your  
>> experience?
>> It would be good to know that there are some early adopters in  
>> production
>> having success before we take the plunge as a whole.
>>
>>
>>
>> Maybe we could also get a quick show of hands via this email thread  
>> on:
>>
>>
>>
>> ·         Are you building your Sakai 2.5 or 2.6 instance using  
>> Java 1.6?
>>
>> ·         When did you start building with and which version of  
>> Java 1.6, or
>> when do you plan to change to 1.6?
>>
>> ·         Are you running your Sakai 2.5 or 2.6 instance using Java  
>> 1.6?
>>
>> ·         When did you start running with and which version of Java  
>> 1.6, or
>> when do you plan to change to 1.6?
>>
>>
>>
>> We’ll also need to move trunk/Sakai 2.7 to Java 1.6 at some point  
>> as well.
>> Any thoughts folks have on when it would be best to do this?   
>> Perhaps sooner
>> is better than later?
>>
>>
>>
>> What do folks working on Sakai 3.0/Kernel 2 think?  Are the plans  
>> for the
>> mid-year early adopters release to run on Java 1.5 or 1.6?
>>
>>
>>
>> Thanks.
>>
>>
>>
>> -peter
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> From: sakai-dev-bounces at collab.sakaiproject.org
>> [mailto:sakai-dev-bounces at collab.sakaiproject.org] On Behalf Of  
>> Matthew
>> Jones
>> Sent: Monday, March 16, 2009 7:36 PM
>> To: Seth Theriault
>> Cc: sakai-dev at collab.sakaiproject.org
>> Subject: Re: [Building Sakai] JDK 1.5 "end-of-service-life" date is  
>> October
>> 30, 2009
>>
>>
>>
>> Well, sakai 2.5.3 compiles all fine for me under java 1.6, and I've  
>> been
>> running a sakai 1.5 compiled code our development server under a  
>> 1.6 JVM for
>> the past 6 months with nothing out of the ordinary occurring. The  
>> benchmarks
>> have 1.6 running a certain percentage faster on certain application  
>> (I think
>> for me sakai was starting up a few seconds faster) and the big one  
>> was that
>> it doesn't have the debugging where it can crash the server (under  
>> 1.5)
>> which makes it much better for development. I haven't actively ran  
>> a 1.6
>> compiled sakai under a 1.6 jvm lately though.
>>
>> I have been using that tomcat workaround mentioned in Steven's post  
>> through
>> for the java_opt
>> -Dsun.lang.ClassLoader.allowArraySyntax=true
>>
>> This conversion to 1.6 was tracked here without too much activity:
>> http://jira.sakaiproject.org/jira/browse/SAK-10716
>>
>> I'll try to roll it out tomorrow and see how it looks, but it would  
>> probably
>> be worth having a QA server eventually running 1.6/1.6 to see how  
>> it goes as
>> the posts suggest.
>>
>> I can volunteer one of the 2.5.x QA's if Pete wants.
>>
>> -Matthew
>>
>> On Mon, Mar 16, 2009 at 4:23 PM, Seth Theriault <slt at columbia.edu>  
>> wrote:
>>
>> Hello,
>>
>> I am not sure what the plans to move Sakai to Java 6 are, but
>> this statement is probably worth noting:
>>
>> "J2SE 5.0 is in its Java Technology End of Life (EOL) transition
>> period. The EOL transition period began April 8th, 2008 and will
>> complete October 30th, 2009, when J2SE 5.0 will have reached its
>> End of Service Life (EOSL)."
>>
>> http://java.sun.com/javase/downloads/index_jdk5.jsp
>>
>> More info at:
>>
>> http://java.sun.com/products/archive/eol.policy.html
>>
>> Seth
>>
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>
>
>
> -- 
> Aaron Zeckoski (aaronz at vt.edu)
> Senior Research Engineer - CARET - Cambridge University
> [http://bugs.sakaiproject.org/confluence/display/~aaronz/]
> Sakai Fellow - [http://aaronz-sakai.blogspot.com/]
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