States under the header "Sample Plugin":
A sample plugin that illustrates how to create your own action group and add it to the main menu and to the main toolbar is available in the <%IDEA project directory%>/community/samples/actions directory
Please note : there is no "community" directory in the root of the CE source distribution, but there *is* a samples directory at the root level.
In this directory are:
I've thoroughly examined the actions and plugin projects, and can tell you NEITHER of these work under IDEA 9. In fact, they look like they were last designed to work with JDK 1.3.
Who maintains the confluence document included above, or these "sample" projects? Either the projects need to be fixed to actually work with IDEA 9, or the "getting started" document should be updated to remove the reference to these obsolete sample files, and the sample files should be removed from the distribution.
It's frustrating to waste a day wondering what I am doing wrong only to find out the supposed samples used to teach you to develop plugins are obsolete and don't work.