sun.net.www.protocol.https.HttpsURLConnectionImpl cannot be cast to sun.net.www.protocol.http.HttpURLConnection
Solution 1
@KarolDowbecki's analysis was in the right direction.
Instead of sun.net.www.protocol.http.HttpURLConnection;
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
https://makemysushi.com/404#navigation
https://makemysushi.com/
https://makemysushi.com/
https://makemysushi.com/sushi-university
https://makemysushi.com/sushi-recipes
https://makemysushi.com/sushi-essentials
https://makemysushi.com/store
https://www.facebook.com/Makemysushi/
https://www.instagram.com/explore/tags/makemysushi/
https://plus.google.com/+Makemysushi
mailto:[email protected] // <-- this href attribute is of MailToURLConnection type raising the java.lang.ClassCastException which can't be casted to HttpURLConnection type
.
.
.
https://makemysushi.com/Sushi-share/contact-us
https://makemysushi.com/Sushi-share/about-us
null
null
null
null
size of activelink list77
https://makemysushi.com/404#navigation----Not Found
https://makemysushi.com/----OK
https://makemysushi.com/----OK
https://makemysushi.com/sushi-university----OK
https://makemysushi.com/sushi-recipes----OK
https://makemysushi.com/sushi-essentials----OK
https://makemysushi.com/store----OK
https://www.facebook.com/Makemysushi/----OK
https://www.instagram.com/explore/tags/makemysushi/----OK
https://plus.google.com/+Makemysushi----OK
Exception in thread "main" java.lang.ClassCastException: sun.net.www.protocol.mailto.MailToURLConnection 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 id="social-em" class="fa fa-envelope-square fa-3x social"></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
Solution 2
Change your import statement for HttpURLConnection
class from import sun.net.www.protocol.http.HttpURLConnection;
to import java.net.HttpURLConnection;
.
You are not supposed to use sun
packages and classes in your application code. They are internal to JVM.
Ashwini Pandey
Updated on June 26, 2022Comments
-
Ashwini Pandey almost 2 years
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.www.protocol.http.HttpURLConnection; 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("https://www.makemysushi.com/404?"); 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.www.protocol.https.HttpsURLConnectionImpl cannot be cast to sun.net.www.protocol.http.HttpURLConnection at TestMakeMySushi.main(TestMakeMySushi.java:76) C:\Users\Dev-24\AppData\Local\NetBeans\Cache\8.1\executor-snippets\run.xml:53: Java returned: 1
-
Ashwini Pandey over 5 yearsstill getting the Exception in thread "main" java.lang.ClassCastException: sun.net.www.protocol.mailto.MailToURLConnection cannot be cast to java.net.HttpURLConnection at TestMakeMySushi.main(TestMakeMySushi.java:57)
-
Karol Dowbecki over 5 years
MailToURLConnection
is not aHttpURLConnection
, it's ajava.net.URLConnection
. Pay attention to class hierarchy, you can't side step it. -
undetected Selenium over 5 years@AshwiniPandey Glad to be able to help you !!! Upvote the answer if this/any answer is/was helpful to you for the benefit of the future readers.