The maven-archetype-plugin along with our maven-archetype-har package provides an easy way to seed your new har project. Use the command below, filling in your group and artifact id, to generate a proper pom.xml and file layout for the maven-har-plugin.
mvn archetype:create \ -DarchetypeGroupId=net.sf.maven-har \ -DarchetypeArtifactId=maven-archetype-har \ -DarchetypeVersion=1.0 \ -DgroupId=[your project's group id] \ -DartifactId=[your project's artifact id]