Remove unused aggregate configuration from javadoc plugin.
<configuration>
<!-- Enable MathJax -->
<additionalOptions>${doclint.javadoc.qualifier} ${allowscript.javadoc.qualifier} -header '&lt;script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/${numbers.mathjax.version}/MathJax.js?config=TeX-AMS-MML_HTMLorMML"&gt;&lt;/script&gt;'</additionalOptions>
- <!-- <aggregate>true</aggregate> -->
</configuration>
</plugin>
<plugin>
<configuration>
<!-- Enable MathJax -->
<additionalOptions>${doclint.javadoc.qualifier} ${allowscript.javadoc.qualifier} -header '&lt;script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/${numbers.mathjax.version}/MathJax.js?config=TeX-AMS-MML_HTMLorMML"&gt;&lt;/script&gt;'</additionalOptions>
- <!-- <aggregate>true</aggregate> -->
</configuration>
</plugin>
</plugins>
