Set assembly plugin runOnlyAtExecutionRoot=false to make sure each jar file get's it source-release.zip attachment
diff --git a/parent/pom.xml b/parent/pom.xml
index ba3326c..e50ab81 100644
--- a/parent/pom.xml
+++ b/parent/pom.xml
@@ -93,4 +93,28 @@
</plugins>
</pluginManagement>
</build>
+
+ <profiles>
+ <profile>
+ <id>apache-release</id>
+ <build>
+ <plugins>
+ <!-- Set runOnlyAtExecutionRoot=false to make sure each jar file get's it source-release.zip attachment -->
+ <plugin>
+ <groupId>org.apache.maven.plugins</groupId>
+ <artifactId>maven-assembly-plugin</artifactId>
+ <executions>
+ <execution>
+ <id>source-release-assembly</id>
+ <configuration>
+ <runOnlyAtExecutionRoot>false</runOnlyAtExecutionRoot>
+ </configuration>
+ </execution>
+ </executions>
+ </plugin>
+ </plugins>
+ </build>
+ </profile>
+ </profiles>
+
</project>