Build direct classes usage graph in multi-module maven project with Apache BCEL.

<pluginRepositories>
    <pluginRepository>
        <id>central</id>
        <url>https://repo1.maven.org/maven2</url>
        <releases>
            <enabled>true</enabled>
        </releases>
    </pluginRepository>
    <pluginRepository>
        <id>github_dryabkov_mvndeps</id>
        <url>https://maven.pkg.github.com/dryabkov/mvndeps</url>
    </pluginRepository>
</pluginRepositories>

mvn
clean compile com.github.dryabkov.mvndeps.reports:deps-maven-plugin:0.0.1:deps -Daggreagate=true
-DpackagePrefixes=<YOUR_ROOT_PACKAGE>
-DoutputClassesFile=${deps_report_root}/classes.txt
-DoutputClassesInfoFile=${deps_report_root}/classes-inf.txt
-DoutputExceptionsFile=${deps_report_root}/exc.txt
-DoutputPackagesDiagramFile=${deps_report_root}/mp.dot

dot -Tpng ${deps_report_root}/mp.dot > ${deps_report_root}/packages.png