Re: Java 1.5 / 1.6 coexistence issues

[Andrus Adamchik <aa...@apache.org>]

Ugh, stupid me, we have Harmony right here at Apache :-) Thanks Tim, I  
will take a look, and ask questions if we can't figure it on our own.

Thanks,
Andrus


On Sep 29, 2008, at 11:28 AM, Tim Ellison wrote:

> Andrus Adamchik wrote:
>> We are trying to setup Cayenne ORM project structure to be both
>> buildable and runnable under Java 1.5 and 1.6. ("buildable" is  
>> important
>> for non-64-bit Intel Mac users. There's no Java 6 for those older  
>> Macs).
>>
>> The problem is that we are implementing a bunch of java[x].sql
>> interfaces in Cayenne that have changed between the versions of  
>> Java. So
>> take for instance a class implementing java.sql.ResultSet. To be  
>> able to
>> compile against 1.6 jars, we need methods like this:
>>
>>  public java.sql.SQLXML getSQLXML(int) {...}
>>
>> Which does not compile against 1.5 jars. So what I am thinking is
>> building a small "JDBC4-compatibility" Maven module based on  
>> OpenJDK (or
>> Sun JRE) that contains needed interfaces from java[x].sql packages.  
>> It
>> will be done outside Apache. Then the plan to make it a Cayenne
>> "provided" dependency. I.e. it won't be shipped with Cayenne.
>>
>> Any licensing considerations with this approach?
>
> Just use Apache Harmony's implementations and you will not have any  
> such
> problems.
>
> There is a Java 5 version [1] and Java 6 version [2] available.  if  
> you
> want help with a compile-against JAR come and talk on the dev list.
>
> [1]
> http://svn.apache.org/viewvc/harmony/enhanced/classlib/trunk/modules/sql/
> [2]
> http://svn.apache.org/viewvc/harmony/enhanced/classlib/branches/java6/modules/sql/
>
> Regards,
> Tim
>
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