Ok, so I found a solution. It is to disable the maven-tomcat-plugin
for the pojectB, this answer is based on this other question.
Linking the plugin to a specific phase
First I had to link the maven-tomcat-plugin
to a phase of my build cycle, so that it is called even if I don't call the plugin directly from the CLI, obviously I choose the integration-test
phase. I can now run mvn integration-test -pl projectA
to have tomcat being launched with the just build war.
This is how the plugin is declared in the parent:
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat6-maven-plugin</artifactId>
<version>2.1</version>
<executions>
<execution>
<id>run-war</id>
<!-- We link this plugin to some non default phase so that we can disable it in some modules. -->
<phase>integration-test</phase>
<goals>
<goal>run-war</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</pluginManagement>
and in projectA I just make use of it as declared in the parent:
<build>
<plugins>
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat6-maven-plugin</artifactId>
</plugin>
</plugin>
</build>
Deactivating the plugin in projectB
Then, in projectB
, I link the same plugin (with the same id
) to a null/void/empty phase, which ends up disabling the plugin for this project when built for this integration-test
phase:
<build>
<plugins>
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat6-maven-plugin</artifactId>
<executions>
<execution>
<id>run-war</id>
<!-- We don't want this plugin to be called from another module build -->
<phase/>
</execution>
</executions>
</plugin>
</plugins>
</build>
With that setup, I can now do a complete build (both projectB, projectA and other dependencies) and launch tomcat with the resulting war in a single run:
mvn -am -pl projectA clean integration-test