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Code to refresh a stale web element
package com.sahajamit.selenium.utils;
import com.sahajamit.selenium.driver.DriverManager;
import org.openqa.selenium.By;
import org.openqa.selenium.StaleElementReferenceException;
import org.openqa.selenium.WebElement;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.List;
public class StaleElementUtils {
private static final Logger LOGGER = LoggerFactory.getLogger(UIUtils.class);
public static WebElement refreshElement(WebElement elem){
if(!isElementStale(elem))
return elem;
Object lastObject = null;
try{
String[] arr = elem.toString().split("->");
List<String> newStr = new ArrayList<String>();
for(String s:arr){
String newstr = s.trim().replaceAll("^\\[+", "").replaceAll("\\]+$","");
String[] parts = newstr.split(": ");
String key = parts[0];
String value = parts[1];
int leftBracketsCount = value.length() - value.replace("[", "").length();
int rightBracketscount = value.length() - value.replace("]", "").length();
if(leftBracketsCount-rightBracketscount==1)
value = value + "]";
if(lastObject==null){
lastObject = DriverManager.getDriver();
}else{
lastObject = getWebElement(lastObject, key, value);
}
}
}catch(Exception e){
LOGGER.error("Error in Refreshing the stale Element.");
}
return (WebElement)lastObject;
}
public static boolean isElementStale(WebElement e){
try{
e.isDisplayed();
return false;
}catch(StaleElementReferenceException ex){
return true;
}
}
private static WebElement getWebElement(Object lastObject, String key, String value){
WebElement element = null;
try {
By by = getBy(key,value);
Method m = getCaseInsensitiveDeclaredMethod(lastObject,"findElement");
element = (WebElement) m.invoke(lastObject,by);
} catch (InvocationTargetException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
}
return element;
}
private static By getBy(String key, String value) throws InvocationTargetException, IllegalAccessException {
By by = null;
Class clazz = By.class;
String methodName = key.replace(" ","");
Method m = getCaseInsensitiveStaticDeclaredMethod(clazz,methodName);
return (By) m.invoke(null,value);
}
private static Method getCaseInsensitiveDeclaredMethod(Object obj, String methodName) {
Method[] methods = obj.getClass().getMethods();
Method method = null;
for (Method m : methods) {
if (m.getName().equalsIgnoreCase(methodName)) {
method = m;
break;
}
}
if (method == null) {
throw new IllegalStateException(String.format("%s Method name is not found for this Class %s", methodName, obj.getClass().toString()));
}
return method;
}
private static Method getCaseInsensitiveStaticDeclaredMethod(Class clazz, String methodName) {
Method[] methods = clazz.getMethods();
Method method = null;
for (Method m : methods) {
if (m.getName().equalsIgnoreCase(methodName)) {
method = m;
break;
}
}
if (method == null) {
throw new IllegalStateException(String.format("%s Method name is not found for this Class %s", methodName, clazz.toString()));
}
return method;
}
}
@pragmabg

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pragmabg commented Feb 13, 2018

Hi there,
I ended up on that class and I was curious, when exactly do you believe it will get into the else on line 36, as you set the lastObject = null; on line 20?

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