class org.eclipse.gef.ui.stackview.TreeContentProvider (implements org.eclipse.gef.commands.CommandStackListener, org.eclipse.jface.viewers.ITreeContentProvider)
class org.eclipse.gef.ui.stackview.TreeLabelProvider (implements org.eclipse.jface.viewers.ILabelProvider)
class org.eclipse.ui.part.WorkbenchPart (implements org.eclipse.core.runtime.IExecutableExtension, org.eclipse.ui.IWorkbenchPart2)
class org.eclipse.ui.part.ViewPart (implements org.eclipse.ui.IViewPart)
class org.eclipse.ui.part.PageBookView (implements org.eclipse.ui.IPartListener)