我使用了WebDriver采样器并编写了Selenium Java脚本-在下面的脚本中

var x = 0
var nextt = WDS.browser.findElement(pkg.By.xpath("//button[contains(@class,'btn btn-sm btn-light border ml-3')]"))
var nextisEnb = nextt.isEnabled()
while (true) {
  if (nextisEnb == true) {
    //if(next.isEnabled()){
    ++x
    //java.lang.Thread.sleep(2000);

    var wait9 = new org.openqa.selenium.support.ui.WebDriverWait(WDS.browser, 9000)
    wait9.until(org.openqa.selenium.support.ui.ExpectedConditions.elementToBeClickable(pkg.By.xpath("//button[contains(@class,'btn btn-sm btn-light border ml-3')]")))
    nextt.click();
    WDS.log.info('btn50-clicked ' + x + 'isEnabled=' + nextisEnb)

    //break
    if (nextisEnb == false) {

      break
    }
  }
}

当下一个按钮被禁用时，它仍然没有中断循环。它仍然在Jmeter中运行。那么我们如何才能退出循环呢？
我也用下面代码得到了同样的问题

var next = WDS.browser.findElement(pkg.By.xpath("//button[contains(@class,'btn btn-sm btn-light border ml-3')]"))

while (next.isEnabled()) {
  java.lang.Thread.sleep(2000);

  var wait9 = new org.openqa.selenium.support.ui.WebDriverWait(WDS.browser, 9000)
  wait9.until(org.openqa.selenium.support.ui.ExpectedConditions.elementToBeClickable(pkg.By.xpath("//button[contains(@class,'btn btn-sm btn-light border ml-3')]")))
  next.click();
  WDS.log.info('btn50-400clicked')

}
WDS.log.info('btn2clicked')
//java.lang.Thread.sleep(3000);
if (!next.isEnabled()) {
  WDS.log.info('Next button disabled')
}

如何解决？