private void findPropertiesCreateNodeUpdateNodeList(
PropertiesProvider subPanel, ArrayList<DefaultMutableTreeNode> unsortedNodes) {
// find properties
PropertySheetPanel propertiesPanel = createPropertiesPanelForClass(subPanel);
// create node and update tree
if (propertiesPanel.getPropertyCount() > 0) {
unsortedNodes.add(createNode(subPanel, propertiesPanel));
}
}
