for (int i = 0; subConfigs != null && i < subConfigs.length; i++) {
if (subConfigs[i] instanceof HeaderManager) {
final TestElement headerManager = subConfigs[i];
headerManager.setProperty(TestElement.GUI_CLASS, HEADER_PANEL);
treeModel.addComponent(headerManager, newNode);
}
}
} catch (IllegalUserActionException e) {
JMeterUtils.reportErrorToUser(e.getMessage());
}