if (nodes.size() > 1)
if (nodes.size() > 1) {
    public void execute()    {        boolean b = false;        Browser browser = model.getBrowser();                if (node == null && browser != null) {            node = browser.getLastSelectedDisplay();            b = true;        }             if (node == null) return;        if (node.getHierarchyObject() == null) return;        if (b) {        	Set nodes = browser.getSelectedDisplays();        	if (nodes.size() > 1)         		model.annotateDataObjects(nodes);        }        DataObject hierarchyObject = (DataObject) node.getHierarchyObject();        if ((hierarchyObject instanceof DatasetData) ||                (hierarchyObject instanceof ImageData)) {        	ClipBoard cb = model.getClipBoard();            if (b) {            	if (cb != null)                	cb.setSelectedPane(ClipBoard.ANNOTATION_PANE, null);            } else {            	if (cb != null) cb.setSelectedPane(ClipBoard.ANNOTATION_PANE,             									node);                if (browser != null) browser.setSelectedDisplay(node);            }        }     }