Bug 65268 [projection] editor is missing collapse all action for code folding
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/JavaEditor.java
*/
		public void uninstall(ISelectionProvider selectionProvider) {
			if (selectionProvider == null)
				return;
			if (selectionProvider instanceof IPostSelectionProvider)  {
				IPostSelectionProvider provider= (IPostSelectionProvider) selectionProvider;
				provider.removePostSelectionChangedListener(this);
			} else  {
				selectionProvider.removeSelectionChangedListener(this);
			}
		}
	}
	/**
	 * Updates the Java outline page selection and this editor's range indicator.
	 *
	 * @since 3.0
	 */
	private class EditorSelectionChangedListener extends AbstractSelectionChangedListener {
		/*
		 * @see org.eclipse.jface.viewers.ISelectionChangedListener#selectionChanged(org.eclipse.jface.viewers.SelectionChangedEvent)
		 */
		public void selectionChanged(SelectionChangedEvent event) {
			
			JavaEditor.this.selectionChanged();
		}
	}
	/**
	 * Updates the selection in the editor's widget with the selection of the outline page.
	 */
	class OutlineSelectionChangedListener  extends AbstractSelectionChangedListener {