[Building Sakai] Requiring JDK 7 for building/running Sakai 11?

Thu Feb 20 10:59:53 PST 2014

I added some fixes here which should make it work with java 7 now.
https://genericdao.googlecode.com/svn/trunk

It also still builds under java 6.
Need to do a new release but I will wait for people to test this a little first.
-AZ

On Thu, Feb 20, 2014 at 12:27 PM, Cris J Holdorph <holdorph at unicon.net> wrote:
> I "fixed" (changed code locally) in genericdao to be able to compile
> with JDK 7.  It's not the only change.  There are also many unit tests
> that are broken too, because they are dependent on the 'order' those
> tests run and the reflection API implementation changed, which causes
> the tests to run in a different order, breaking the tests.  In the short
> term, I just commented out the tests that were dependent on order (IMO
> any "unit" test dependent on another "unit" test, was not a true unit
> test anyway).
>
> My only point is, I've been running the project I'm on with JDK 7 for
> both compilation and runtime for the last 6 months or so.
>
> ---- Cris J H
>
> On 02/20/2014 10:21 AM, Matthew Jones wrote:
>> As a related issue, I know of one thing that would make our code
>> non-backward compatible with 1.6, but that's in genericdao and not in
>> the core. You can't compile that right now in Java 7 because there was a
>> change to the interface in java.sql which is not backward compatible.
>>
>> The Mac issue is slightly tougher because on 10.6 it says it's
>> preinstalled with Java 6 and 10.7+ you can get Java 7 (not pre-installed)
>> http://www.java.com/en/download/faq/java_mac.xml#havejava
>>
>> You are not able to install Java 7 on anything earlier than 10.7, but at
>> this point 10.7 is itself almost 3 years old, so I'm not too sure how
>> long that would still be an sticking point.
>>
>> And that Java 7 bug is something that you'd have to put in a flag to
>> work around, but it is fixed on 8. We could always wait until 2016 and
>> just recommend upgrading straight to 8. Then OSX 10.6 will be 5 years
>> old and certainly old enough to not worry about that.
>>
>> I think my recommendation for 11 (assuming 2015) would be not to require
>> it, but I'd be in favor of it for 12 (2016).
>>
>> (Issue in Java 7 with java.sql)
>>
>> *Area:* API: JDBC
>> *Synopsis:* New JDBC Methods, Including new Methods in Interfaces
>> *Description:* For the Java SE 7 release, there are new methods to
>> support JDBC 4.1. This includes methods added to the
>> |java.sql.Connection|, |java.sql.Driver|,|javax.sql.CommonDatasource|,
>> and |java.sql.Statement| interfaces. Because all methods of an interface
>> must be implemented, previous code that uses these interfaces will not
>> compile on Java SE 7 unless you add the new methods. See the JDBC
>> documentation for more information.
>> *Nature of Incompatibility:* source
>> *RFE:*6589685 <http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6589685>
>>
>>
>> On Thu, Feb 20, 2014 at 12:13 PM, Aaron Zeckoski <azeckoski at unicon.net
>> <mailto:azeckoski at unicon.net>> wrote:
>>
>>     Current OSX still bundles JDK 6 by default (release from 2013-10-15).
>>     Lots of servers out there are still running Java 6
>>
>>     We could require everyone who uses a Mac to figure out how to install
>>     a newer version in order to use Sakai but I think that is likely to
>>     just make people not bother and use Moodle instead. Current PHP is
>>     5.5.8 (9 Jan 2014) but newest moodle 2.6.1 (13th Jan 2014) only
>>     requires PHP 5.3.3 (22 July 2010).
>>
>>     Bear in mind this bug with JDK 7:
>>     https://jira.sakaiproject.org/browse/KNL-1083
>>
>>     I don't see the benefit and I do see lots of negatives.
>>     -AZ
>>
>>     On Thu, Feb 20, 2014 at 11:43 AM, Matthew Buckett
>>     <matthew.buckett at it.ox.ac.uk <mailto:matthew.buckett at it.ox.ac.uk>>
>>     wrote:
>>      > I know at the moment JDK 6 is the minimum required for Sakai,
>>     does bumping
>>      > it up to JDK 7 (which was released July 2011) make sense for
>>     trunk (Sakai
>>      > 11)?
>>      >
>>      > JDK 6 from Oracle stopped getting public updated in Feb 2013.
>>      > The less JDKs we support the less possibility there is for cross
>>     JDK issues.
>>      > JDK 7 has some nice new language features:
>>      >
>>     http://www.oracle.com/technetwork/java/javase/jdk7-relnotes-418459.html
>>      >
>>      > JDK 7 is available in old distributions such as:
>>      > - Ubuntu 12.04 (released in 2012).
>>      > - Redhat Enterprise Linux 6 (release 2011).
>>      >
>>      > Are there places that can't run on JDK 7?
>>      >
>>      > --
>>      >   Matthew Buckett, VLE Developer, IT Services, University of Oxford
>>      >
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>>
>>     --
>>     Aaron Zeckoski - Software Architect - http://tinyurl.com/azprofile
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-- 
Aaron Zeckoski - Software Architect - http://tinyurl.com/azprofile