Re: [aspectj-users] Setup older compiler/runtime (1.6.8, v6 attributes)

[Brett Randall <javabrett@xxxxxxxxx>]

Hi Andy,

Thanks for the reply.

I ended up applying the same solution as another poster on your blog,
using Maven and the aspectj-maven-plugin, overriding the plugin's
dependency to put the older version of ajc on its classpath.  This
works fine, and together with m2eclipse provides a good developer
experience.  I'm already familiar with Maven so it was easy enough to
make this work.

Thanks
Brett

On Sat, Apr 30, 2011 at 1:40 AM, Andy Clement <andrew.clement@xxxxxxxxx> wrote:
> Hi Brett,
>
> There is no HOWTO on doing that, I'm afraid.  Although in terms of
> packaging it is straightforward (a variant of just copying the three
> main aspectj jars into three AJDT plugins), the interfaces between
> AspectJ and AJDT have continued to evolve and you are very likely to
> hit something like an abstractmethoderror. However, if you really want
> to try it, shutdown eclipse then copy aspectjtools.jar (from an
> installed 1.6.8) as ajde.jar in the org.aspectj.ajde plugin.  Copy
> aspectjweaver.jar into org.aspectj.weaver and aspectjrt.jar into
> org.aspectj.runtime (backup what you currently have before overwriting
> the existing jars).
>
> After doing your development in eclipse, can you instead just kick off
> a build outside of eclipse (using 1.6.8) and deploy the result instead
> of directly deploying the classes that the IDE built?  I'm suggesting
> this as a way to avoid grabbing Eclipse 3.5 (and AJDT 2.0.2:
> http://download.eclipse.org/tools/ajdt/35/update/ajdt_2.0.2_for_eclipse_3.5.zip
> ).
>
> Andy
>
> On 28 April 2011 20:17, Brett Randall <javabrett@xxxxxxxxx> wrote:
>> Hi,
>>
>> I'm using a current Eclipse version, so I've picked-up
>> AspectJ/ajc1.6.11 in my development environment.  In my runtime
>> environment I'm stuck with 1.6.8 for now, so as expected on deployment
>> I'm seeing a v6 versus v7 version clash, per [1].  Unfortunate,
>> runtime is only one revision too old for v7 attributes.
>>
>> Given I can't follow the recommendation to upgrade my runtime version,
>> how difficult is it to setup my Eclipse IDE to use the 1.6.8 compiler
>> (perhaps referenced externally)?  Is there a HOWTO on downgrading
>> Eclipse IDE AJDT kit?  I'm hoping not to have to hunt down an older
>> version of Eclipse.
>>
>> Thanks
>> Brett
>>
>> [1] http://andrewclement.blogspot.com/2010/04/aspectj-169m1-message-unable-to.html
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