click= new Actions(getDriver()).moveToElement(
getDriver().findElement(By.id("formID:multipleNodeDatasSelectionTreeTableID:2:categoryID")))
.click();
click.build().perform();
// element("formID:multipleNodeDatasSelectionTreeTableID:2:categoryID").click();
multipleNodeDataTreeTable.keyPress(Keys.ARROW_RIGHT);
OpenFacesAjaxLoadingMode.getInstance().waitForLoad();
for (int i = 0; i < 3; i++) {
createEvent(multipleNodeDataTreeTable, null, EventType.KEY, "keypress", KeyEvent.VK_DOWN, true);
}
element("formID:submitID").clickAndWait();