Selenium Java : stale excpetion for dropdown - selenium-webdriver

Question

I am doing below steps in my test case
1.Open main page
2.Click on one link which opens a new page(tab)
3.Query data (Click on Query button. Page gets reloaded)
4.Select one drop down – “request” , fill some text data and click save
5.Close this tab
6.From Main page , again click on the link to open this page (tab)
7.Query some data ( Click on Query button . page gets reloaded)
8.Select one drop down - “response” , fill some data and click save
I am getting error at Step-8 while selecting drop-down "Response". The same drop-down while selecting “request” worked fine. Also, I am able to select “response” if I open the page only once (exclude steps- 3,4,5). What is happening here? I am new to selenium and tried almost every solution available for stale exception.
The same code is working fine in my colleagues system without any issues . ( same chrome version)
I also tried by giving sleep time . Also while execution it is expanding the drop-down and I could see the “response” , but still it is not selecting the response.
These are my code snippets. Using chrome browser.
************************ Testcase ******************************
public class TC_004 extends BaseClass{
#Test
public void TNRangeConfirm() throws InterruptedException{
driver.get(baseURL);
LoginUS login=new LoginUS();
login.loginTest();
Thread.sleep(10000);
logger.info("Starting Multiline Creation");
PageActions icp=new PageActions();
logger.info("Sending request");
icp.PortReq();
logger.info("Sending response");
Thread.sleep(5000);
icp.PortRes();
LogoutUS logout=new LogoutUS();
logger.info("Logging out");
logout.logoutTest();
}
}
*********************************************************
**********************Reusable Action***********************
public class PageActions extends BaseClass{
String currentWindow = driver.getWindowHandle();
MainMenuPage mmp=new MainMenuPage(driver);
ActionsPage ipdP=new ActionsPage(driver);
public void PortReq() throws InterruptedException{
System.out.println(" Creation Multi Line : Started");
System.out.println(" Click on Actions page");
mmp.clickPRRADM(); // It expands the link
Thread.sleep(1000);
mmp.clickIPD(); // Opens the page
Thread.sleep(60000);
//Switch tab
//ArrayList<String> tabs = new ArrayList<String> (driver.getWindowHandles());
//driver.switchTo().window(tabs.get(1));
for (String handle : driver.getWindowHandles()) {
if (!handle.equals(currentWindow)) {
driver.switchTo().window(handle);
}
}
//Read Data from Excel
//objExcelFile
MngTestData mtd=new MngTestData();
try {
TN1 = mtd.readExcel(filePath, fileName, sheetName, "New_TN");
TN2 = mtd.readExcel(filePath, fileName, sheetName, "TN1");
TN3 = mtd.readExcel(filePath, fileName, sheetName, "TN2");
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
System.out.println("TN : "+TN);
ipdP.selectPortType("Request");
ipdP.setPortNo(TN);
ipdP.selectOwner(TN1);
Thread.sleep(10000);
ipdP.clickQuery();
Thread.sleep(10000);
Boolean isPresent = driver.findElements(By.id("INFO_MSD_ID_0")).size() >0 ;
if((isPresent) && (ipdP.isExist("NO RECORDS FOUND"))){ */
System.out.println("Multi Line Creation Started");
ipdP.selectPortAction("Request");
Thread.sleep(10000);
ipdP.selectNNSP(TN1);
Thread.sleep(6000);
ipdP.selectONSP(TN2);
Thread.sleep(10000);
ipdP.clickSave();
Thread.sleep(30000);
driver.close();
driver.switchTo().window(currentWindow);
Thread.sleep(10000);
}
public void PortRes() throws InterruptedException{
String currentWindow = driver.getWindowHandle();
mmp.clickPRRADM();
Thread.sleep(1000);
mmp.clickPRRADM();
Thread.sleep(5000);
mmp.clickIPD(); // opens page
Thread.sleep(30000);
//Read Data from Excel
//objExcelFile
MngTestData mtd=new MngTestData();
try {
TN = mtd.readExcel(filePath, fileName, sheetName, "New_TN");
onsp = mtd.readExcel(filePath, fileName, sheetName,"Old_Network");
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
//Create Response
System.out.println("Response Started");
//Switch tab
ArrayList<String> tabs = new ArrayList<String> (driver.getWindowHandles());
driver.switchTo().window(tabs.get(1));
waitUntil wt= new waitUntil();
boolean isFound=wt.waitForElement(driver, By.id("select-REC_TYPE_ID"));
System.out.println("isFound"+isFound);
wt.waitTillDropdownElementLoads(By.id("select-REC_TYPE_ID"), "Request");
wt.waitTillListOfElementsVisibility(By.id("QRY_NUM_ID"));
Thread.sleep(40000);
ipdP.setPortNo(TN);
wt.waitTillDropdownElementLoads(By.id("select-QRY_OWNER_ID"), owner);
ipdP.selectOwner(owner);
Thread.sleep(10000);
ipdP.clickQuery();
Thread.sleep(40000);
ipdP.selectMultiPortAction("Response"); // My code fails at this point stale excecption.
Thread.sleep(10000);
driver.close();
driver.switchTo().window(currentWindow);
Thread.sleep(10000);
}
}
************************************************************************************
***********************************PageObject class ********************************
public class ActionsPage {
WebDriver ldriver;
public ActionsPage (WebDriver rdriver){
ldriver=rdriver;
PageFactory.initElements(rdriver,this);
}
#FindBy(id="select-DETAILS_ACTION_ID")
#CacheLookup
WebElement selAction;
public void selectPortAction(String action){
Select portAction = new Select(selAction);
portAction.selectByValue(action);
}
******************************************************************************************

Answer 1

I commented out #CacheLookup and it started working without any issues. But I dont know what is the reason behind this.
In PageObject class comment out #CacheLookup and this resolved my error.
#FindBy(id="select-DETAILS_ACTION_ID")
//#CacheLookup
WebElement selAction;