clipse.ui.intro/close http://org.eclipse.ui.intro/runAction?pluginId=x.y.z&class=x.y.z.someClass
When parsed, the first url has "close" as a command, and no parameters. While the second "runAction" as a command and "pluginId" and "class" as parameters.
There is a number of supported Intro commands. Check docs for more details. Calling execute runs the command if it is one of the supported commands.
This interface is not intended to be implemented by clients.
@see IntroURLFactory
@see IIntroAction
@since 3.0