Exactly, that is the case.
- afterSessionStart is a maven extension,
- afterProjectRead is a project extension,
which in the end is quite confusing…
Tom
On Mar 6, 2012, at 11:09 PM, Jeff MAURY wrote:
> It seems quite confusing: Tycho is using this functionality and does not
> require to be installed in M2_HOME/lib/ext.
> My understanding is the following:
> - for afterSessionStart, must be installed in M2_HOME/lib/ext
> - for afterProjectRead, can be an extension in the POM
>
> Jeff
>
> On Tue, Mar 6, 2012 at 10:51 PM, Olivier Lamy <ol...@apache.org> wrote:
>
>> 2012/3/6 Tom Bujok <tom.bu...@gmail.com>:
>>> Hi guys,
>>>
>>> I have implemented an AbstractMavenLifecycleParticipant to customize the
>> standard build behavior a bit.
>>> The declaration of the participant looks like this:
>>>
>>> @Component(role = AbstractMavenLifecycleParticipant.class, hint =
>> "testParticipant")
>>> public class TestParticipant extends AbstractMavenLifecycleParticipant
>>> implements Initializable {
>>> …
>>> }
>>>
>>> I have noticed, however, that the afterSessionStart method is never
>> invoked. I debugged the getLifecycleParticipants method in the
>> DefaultMaven.java class and it looks like an class-loading issue.
>>> Container.lookupList( AbstractMavenLifecycleParticipant.class ) method
>> fetches my participant only when the context class loader is set to project
>> realm's class loader, basically after this stuff is executed:
>>> ClassLoader projectRealm = project.getClassRealm();
>>> Thread.currentThread().setContextClassLoader( projectRealm );
>>>
>>> afterSessionStart() method, however, is invoked before the projects are
>> read, so in general, it look like it is impossible to use the
>> "afterSessionStart" method from a plugin defined in a project...
>>> Am I right, or maybe I am missing something? I am willing to provide a
>> patch if you explain what the default behavior should be.
>> AFAIK AbstractMavenLifecycleParticipant are maven extension (i.e.
>> placed in $M2_HOME/lib/ext/ ) and not project extension.
>> And btw afterSessionStart is executed before reading project so
>> "project realm" is unknown at this stage.
>>>
>>> Thanks in advance,
>>> Tom Bujok
>>>
>>>
>>>
>>>
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>>
>>
>>
>> --
>> Olivier Lamy
>> Talend: http://coders.talend.com
>> http://twitter.com/olamy | http://linkedin.com/in/olamy
>>
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>>
>
>
> --
> Jeff MAURY
>
> "Legacy code" often differs from its suggested alternative by actually
> working and scaling.
> - Bjarne Stroustrup
>
> http://www.jeffmaury.com
> http://riadiscuss.jeffmaury.com
> http://www.twitter.com/jeffmaury
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