Bug 257855 [CommonNavigator] Supporting Custom Transfertypes in Common Navigator Framework
bundles/org.eclipse.ui.navigator/src/org/eclipse/ui/navigator/CommonViewer.java
* @see org.eclipse.jface.viewers.AbstractTreeViewer#internalRefresh(java.lang.Object,
	 *      boolean)
	 */
	protected void internalRefresh(Object element, boolean updateLabels) {
		if (element == null && getRoot() == null) {
			return;
		}
		super.internalRefresh(element, updateLabels);
	}
	/**
	 * 
	 * @noreference This method is not intended to be referenced by clients.
	 */
    public void createFrameList() {
        CommonNavigatorFrameSource frameSource = new CommonNavigatorFrameSource(commonNavigator);
        frameList = new FrameList(frameSource);
        frameSource.connectTo(frameList);
    }
    
	/**
	 * @return a FrameList
	 * @noreference This method is not intended to be referenced by clients.
	 */
    public FrameList getFrameList() {
        return frameList;
    }
	
	
}