Jon and I work on this patch as the first step to enable module graphs for inclusion in the javadoc. It includes a @moduleGraph taglet, an updated GenGraphs tool, and also updates javadoc of module-info.java to include @moduleGraph. I also take the opportunity to add simple javadoc to a few JDK modules preparing for JEP 299 that will generate module summary page for JDK modules.
Webrev at: http://cr.openjdk.java.net/~mchung/jdk9/webrevs/8173303/webrev.00/ Here shows some sample of the javadoc with module graph images: http://cr.openjdk.java.net/~mchung/jdk9/module-graph-docs/overview-summary.html Click on a module and it will show a module graph icon. Mouse over it will show the full size image. java.base is a special case that has no hovered image since it has one node and the full size image is already shown. The build work to generate PNG file from .dot file will be done separately [1]. Mandy [1] https://bugs.openjdk.java.net/browse/JDK-8176785
