The MyFaces Shared Core Subproject build the sources artifact needed by the shared-* modules.
'org.apache.myfaces.shared:myfaces-shared-core:4.0.20'
<dependency>
<groupId>org.apache.myfaces.shared</groupId>
<artifactId>myfaces-shared-core</artifactId>
<version>4.0.20</version>
</dependency>
<dependency org="org.apache.myfaces.shared" name="myfaces-shared-core" rev="4.0.20"/>
"org.apache.myfaces.shared", "myfaces-shared-core", "4.0.20"