First check whether your plugin works via Eclipse. Can you click
on "Launch an Eclipse application" in the "Testing" section of
the "Overview" tab of your plugin.xml's editor? Can you export
your plugin via File > Export > Plug-in Development > * ? Does
the exported plugin work when it is installed into your
application/Eclipse environment?
Please ensure that all of the above work as pde-maven-plugin
relies on the Ant build scripts supplied with Eclipse and will
not work if any of the above are failing.