Bug 120691 [Markers] Expanded categories not persisted between sessions
build I20051213 - in the Problems view in hierarchical mode, with many problems showing, - expand a few categories, select some leaf problems - shutdown / restart - the tree is collapsed Users will expect that the work they did to expand/collapse categories to see the problems they care most about will be persisted between sessions.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/views/markers/ExtendedMarkersView.java
}
			/*
			 * (non-Javadoc)
			 * 
			 * @see org.eclipse.ui.IPartListener2#partVisible(org.eclipse.ui.IWorkbenchPartReference)
			 */
			public void partVisible(IWorkbenchPartReference partRef) {
				if (partRef.getId().equals(
						ExtendedMarkersView.this.getSite().getId())) {
					pageSelectionListener.selectionChanged(getSite().getPage()
							.getActivePart(), getSite().getPage()
							.getSelection());
				}
			}
		};
	}
	public void dispose() {
		super.dispose();
		updateJob.cancel();
		instanceCount--;
		if (clipboard != null)
			clipboard.dispose();
		IDEWorkbenchPlugin.getDefault().getPreferenceStore()
				.removePropertyChangeListener(preferenceListener);
		getSite().getPage().removePostSelectionListener(pageSelectionListener);
		getSite().getPage().removePartListener(partListener);
	}
	/**
	 * Return all of the marker items in the receiver that are concrete.