[Selenium] waitUntilAllAjaxRequestCompletes

private static final String JQUERY_ACTIVE_CONNECTIONS_QUERY = "return $.active == 0;";

private static ExpectedCondition<Boolean> noActiveConnections = new ExpectedCondition<Boolean>() {
　　@Override
　　public Boolean apply(WebDriver driver) {
　　　　JavascriptExecutor jsExec = (JavascriptExecutor) driver;
　　　　return (Boolean) jsExec.executeScript(JQUERY_ACTIVE_CONNECTIONS_QUERY);
　　　}
};

public static boolean waitUntilAllAjaxRequestCompletes(WebDriver driver) {
　　Boolean status = false;
　　try {
　　　　status = SeleniumUtil.createWait(driver).until(noActiveConnections);
　　} catch (Exception e) {
　　　　status = false;
　　}
　　return status;
}

public static boolean waitUntilAllAjaxRequestCompletes(WebDriver driver, int seconds) {
　　Boolean status = false;
　　try {
　　　　status = SeleniumUtil.createWait(driver, seconds).until(noActiveConnections);
　　} catch (Exception e) {
　　　　status = false;
　　}
　　return status;
}