i am using selenium library for testing purpose. But the following code giving me class cast exception. i have googled this exception but didn't get the solution. i am confused in Https connetion and http connetion. help me to solve this exception. thank you

import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.TimeUnit;
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.chrome.ChromeDriver;
import sun.net.
public class TestMakeMySushi { private static final String HttpURLConnection = null; public static void main(String[] args) throws InterruptedException, MalformedURLException, IOException { System.setProperty("webdriver.chrome.driver", "C:\\Users\\Dev-24\\Downloads\\chromedriver.exe"); WebDriver driver = new ChromeDriver(); driver.manage().window().maximize(); driver.manage().deleteAllCookies(); driver.manage().timeouts().pageLoadTimeout(30, TimeUnit.SECONDS); driver.manage().timeouts().implicitlyWait(40, TimeUnit.SECONDS); driver.get(""); List<WebElement> linklist = driver.findElements(By.tagName("a")); linklist.addAll(driver.findElements(By.tagName("img"))); System.out.println("size of all link and images list" + linklist.size()); List<WebElement> activelist = new ArrayList<WebElement>(); for (int i = 0; i < linklist.size(); i++) { System.out.println(linklist.get(i).getAttribute("href")); if (linklist.get(i).getAttribute("href") != null && (!linklist.get(i).getAttribute("href").contains("javascript"))) { activelist.add(linklist.get(i)); } } System.out.println("size of activelink list" + activelist.size()); for (int j = 0; j < activelist.size(); j++) { HttpURLConnection connection = (HttpURLConnection) new URL(activelist.get(j).getAttribute("href")).openConnection(); connection.connect(); String response = connection.getResponseMessage(); connection.disconnect(); System.out.println(activelist.get(j).getAttribute("href") + "----" + response); }
}
}

Exception that i am facing

Exception in thread "main" java.lang.ClassCastException: sun.net. cannot be cast to sun.net.
at TestMakeMySushi.main(TestMakeMySushi.java:76)
C:\Users\Dev-24\AppData\Local\NetBeans\Cache\8.1\executor-snippets\run.xml:53: Java returned: 1

3 Answers

Change your import statement for HttpURLConnection class from import sun.net. to import java.net.HttpURLConnection;.

You are not supposed to use sun packages and classes in your application code. They are internal to JVM.

2

@KarolDowbecki's analysis was in the right direction.

Instead of sun.net. HttpURLConnection should be resolved through:

import java.net.HttpURLConnection;

I was able to execute your program which produces the following output:

size of all link and images list81
mailto:[email protected] // <-- this href attribute is of MailToURLConnection type raising the java.lang.ClassCastException which can't be casted to HttpURLConnection type
.
.
.
null
null
null
null
size of activelink list77 Found
Exception in thread "main" java.lang.ClassCastException: sun.net. cannot be cast to java.net.HttpURLConnection at demo.TestMakeMySushi.main(TestMakeMySushi.java:48)

Reason

The List activelist contains an element:

<a href="mailto:[email protected]" target="_blank"><i></i></a>

When you are trying to establish a connection through the href attribute mailto:[email protected] as in:

HttpURLConnection connection = (HttpURLConnection) new URL(activelist.get(j).getAttribute("href")).openConnection();

A successful connection cannot be established as MailToURLConnection object can't be casted to HttpURLConnection object and raises java.lang.ClassCastException

0

I was facing same issue because i imported

import com.sun.net.ssl.HttpsURLConnection;

remove that and import below

import javax.net.ssl.HttpsURLConnection;

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