this.treeModel.insertNodeInto(newNode, parent, index);
for (Component component : components) {
WSComponent wsComponent = (WSComponent) component;
String operationName = wsComponent.getOperationName();
ComponentOperationReference reference = new ComponentOperationReference(
operationName, wsComponent);
ComponentTreeNode child = new ComponentTreeNode(reference);
this.treeModel.addNodeInto(child, newNode);
}
// expand