The Wiki Extension Plugin is part of the NeWikiPlugins but is not actually a WikiPlugin (and doesn't implement a functional execute() method), but it does implement the InitializablePlugin interface, which means that its initialize(WikiEngine method will be executed when the wiki starts up.
This is used solely to trigger instantiation of implementations of WikiExtension interface upon startup that have been included in the wiki's configuration file.
This is part of the NeWikiPlugins.
An API for a WikiEngine extension, to be instantiated upon wiki startup.
In this case, an instance of both the EventManagerFactory and GraphResource will be created on startup.
There must also be a zero-argument constructor, or in the case of singletons, a static "getInstance()" method.
To use, be sure that this plugin is included in jspwiki_module.xml.
These are typical URLs of the service endpoints. If the software were installed these would provide expected results...