According to the Default Lifecycle Bindings, the bindings for a packaging pom
are:
Default Lifecycle Bindings - Packaging
pom
package site:attach-descriptor
install install:install
deploy deploy:deploy
So if your parent POM has a <packaging>pom<packaging>
(this should be the case as pointed out in a comment) and if you bind your plugins to other phases than those above (see the Lifecycle Reference for a comprehensive list), they won't be executed during the build of the parent POM.
(EDIT: My initial answer is just wrong. If you bind a plugin goal to a particular phase, it will be triggered during that phase, regardless of the packaging of the project. The Default Lifecycle Bindings don't have anything to do with that, they are just default lifecycle bindings. All what matters is if the phase to which the plugin is bound is part of the build lifecyle.)
As you pointed out, you can use the pluginManagement
in the parent pom for the configuration of the plugin but if you really want to execute a plugin goal in children modules and not in the parent (you might have good reasons to do this but most of time, plugins won't have much effet on a module with a pom
packaging that doesn't have any content), you'll have to reference plugins in the plugins
element in the children.
Applied to your example, the parent pom.xml could define the following specifications:
<project>
<packaging>pom</packaging>
...
<modules>
<module>child</module>
</modules>
...
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<version>2.2</version>
<executions>
<execution>
<id>my-execution-id</id>
<phase>integration-test</phase>
<goals>
<goal>jar</goal>
</goals>
</execution>
</executions>
</plugin>
...
</plugins>
</pluginManagement>
</build>
...
</project>
And in every child pom.xml
, only the following is required:
<project>
...
<build>
...
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
</plugin>
</plugins>
...
</build>
</project>
与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…