When adding some post steps for a Maven 2 build, they are executed before the build.

Output from the log:
> [Project_Trunk] $ /bin/sh -xe /tmp/hudson4332229457250043200.sh
> + echo '[INFO] Prebuild step'

This works ok, it's a pre build step.

> [trunk] $ /home/axhudson/tools/maven/apache-maven-2.2.1/bin/mvn -Dmaven.repo.local=/home/axhudson/hudson/workspace/Project_Trunk/.repository - B -U -e com.axway.maven2.plugins:axway-arti-staging-plugin:1.1.1:stage -DdeployList -Dintegration -Dwebliv

This doesn't, it's the post build step.

Of course, later on this happens:
org.apache.maven.lifecycle.LifecycleExecutionException: /home/axhudson/hudson/workspace/Project_Trunk/trunk/all-project/patcher/target/patcher-3.7.0-SNAPSHOT-proguard.jar not found.
Since the post build step needs a build artifact.

The relevant config.xml section:
<hudson.plugins.m2extrasteps.M2ExtraStepsWrapper>
<preBuildSteps>
<hudson.tasks.Shell>
<command>echo "[INFO] Prebuild step"</command>
</hudson.tasks.Shell>
</preBuildSteps>
<postBuildSteps>
<hudson.tasks.Maven>
<targets>-B -U -e com.axway.maven2.plugins:axway-arti-staging-plugin:1.1.1:stage -DdeployList -Dintegration -Dwebliv</targets>
<mavenName>MAVEN_221</mavenName>
<usePrivateRepository>true</usePrivateRepository>
</hudson.tasks.Maven>
<hudson.tasks.Shell>
<command>${JAVA_16_HOME}/bin/java -jar ${JYTHON}/jython.jar ${DEPLOY_SCRIPT}</command>
</hudson.tasks.Shell>
</postBuildSteps>
<runIfResult>success</runIfResult>
</hudson.plugins.m2extrasteps.M2ExtraStepsWrapper>

Any other debug information needed?
Thanks.