there' s no solution yet for this problem, yours is probably the easiest option
see http://jira.codehaus.org/browse/MNG-2316
On Wed, Aug 20, 2008 at 12:24 PM, Stefano Bagnara <[EMAIL PROTECTED]> wrote:
> In Apache JAMES we have a multimodule project depending on javamail.
>
> We want to easily switch from sun's javamail to geronimo javamail and back
> for testing purposes.
>
> What is the maven best practice for this?
>
> I don't want to go through all of our modules dependencies and alter their
> declaration and at the same time I don't want my parent pom (in the
> multimodule root) to include a dependency on that as not all of the modules
> should require javamail.
>
> I currently added
>
> <properties>
> <javax.mail.groupId>org.apache.geronimo.javamail</javax.mail.groupId>
> <javax.mail.artifactId>geronimo-javamail_1.4_mail</javax.mail.artifactId>
> <javax.activation.groupId>org.apache.geronimo.specs</javax.activation.groupId>
> <javax.activation.artifactId>geronimo-activation_1.1_spec</javax.activation.artifactId>
> <!--
> <javax.activation.groupId>javax.activation</javax.activation.groupId>
> <javax.activation.artifactId>activation</javax.activation.artifactId>
> <javax.mail.groupId>javax.mail</javax.mail.groupId>
> <javax.mail.artifactId>mail</javax.mail.artifactId>
> -->
> </properties>
>
> to my main pom and then used similar snippets in child poms:
>
> <dependency>
> <groupId>${javax.mail.groupId}</groupId>
> <artifactId>${javax.mail.artifactId}</artifactId>
> </dependency>
>
>
> Is this the best way?
>
> I would have preferred a way in dependencyManagement to declare that a given
> artifact already provides/substitute another artifactId/groupId because I
> will not be able to always tune childs this way and also I have to manually
> exclude sun's javamail dependency from any other dependency I have otherwise
> I end up with both implementations included in the classpath.
>
> Stefano
>
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