<source>1.8</source>
            <target>1.8</target>
            <encoding>UTF-8</encoding>
            <parameters>true</parameters>
            <compilerArgs>
              <!--
                   Make includes/excludes fully work:
                   https://issues.apache.org/jira/browse/MCOMPILER-174

                   (Compare what guava-gwt has to do for maven-javadoc-plugin.)
              -->

            classes that are actually used in the module under test.

            One way to eliminate the warnings is to make base.testModule include the not really
            necessary <inherits> lines for c.g.c.collect.testModule, etc. However, adding <inherits>
            lines could make c.g.c.base.testModule transitively inherit from extra modules. If some