Classpath container pages that implement IClasspathContainerPage can
optionally implement IClasspathContainerPageExtension to get additional
information about the context when the page is opened.
A Javadoc export wizard page allows the user to add an additional page to the
Javadoc wizard.
Clients should extend this class and include the name of their
class in an extension contributed to the jdt.ui's Javadoc export wizard page
extension point (named org.eclipse.jdt.ui.javadocExportWizardPage
).
EXPERIMENTAL This class or interface has been added as part
of a work in progress.