/**
* Makes the first child node of the root node selected, expanding the root node if necessary.
*/
public final void selectFirstRootChildNode() {
IntegrationEntityTreeModel model = getModel();
KongaTreeNode root = model.getRoot();
int childCount = model.getChildCount(root);
if (childCount > 0) {
if (!isNodeExpanded(root)) {
makeNodeExpanded(root);
}