Timeout exception when using dev tools with selenium-java-4.0.0 and chromedriver v85

Try calling createSession before calling clearBrowserCache.

Using your setup, this works:

chromeDriver.getDevTools().createSession();
chromeDriver.getDevTools().send(Network.clearBrowserCache())

and this produces java.util.concurrent.TimeoutException:

chromeDriver.getDevTools().send(Network.clearBrowserCache())

You can verify that the browser cache has been cleared with this snippet:

    ChromeDriver driver = new ChromeDriver();
    driver.get("https://refreshyourcache.com/en/cache-test/");
    Thread.sleep(2000);
    driver.getDevTools().createSession();
    driver.getDevTools().send(Network.clearBrowserCache());
    driver.get("https://refreshyourcache.com/en/cache-test/");
    Thread.sleep(5000);

If you run the code, the pages displayed in the test browser will show these images:

If you commment out the line driver.getDevTools().send(Network.clearBrowserCache()); then you get a different result:

Using Selenium 4.0.0-alpha-6, Chrome v85 and ChromeDriver v85.0 through google-chrome-devtools you must be able to use getVersion() method as follows:

import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.chrome.ChromeOptions;
import org.openqa.selenium.devtools.DevTools;
import org.openqa.selenium.devtools.browser.Browser;

public class BrowserGetVersion {
    public static void main(String[] args) {
        System.setProperty("webdriver.chrome.driver","C:\\WebDrivers\\chromedriver.exe");
        ChromeOptions options = new ChromeOptions();
        options.addArguments("--start-maximized");
        ChromeDriver driver = new ChromeDriver(options);
        DevTools devTools = driver.getDevTools();
        devTools.createSession();
        devTools.send(Browser.getVersion());
    }
}

Similarly, using the clearBrowserCache() method you should be able to clear the browser cache using the following code block:

import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.chrome.ChromeOptions;
import org.openqa.selenium.devtools.DevTools;
import org.openqa.selenium.devtools.network.Network;

public class ClearChromeCache {
    public static void main(String[] args) {
        System.setProperty("webdriver.chrome.driver","C:\\WebDrivers\\chromedriver.exe");
        ChromeOptions options = new ChromeOptions();
        options.addArguments("--start-maximized");
        ChromeDriver driver = new ChromeDriver(options);
        DevTools devTools = driver.getDevTools();
        devTools.createSession();
        devTools.send(Network.clearBrowserCache());
        driver.get("https://www.google.com/");
    }
}

Additional Consideration

Additionally, you can also use setCacheDisabled(true) to completely disable the cache as follows:

Code Block:

import java.util.Collections;
import java.util.Optional;

import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.chrome.ChromeOptions;
import org.openqa.selenium.devtools.DevTools;
import org.openqa.selenium.devtools.network.Network;
import org.testng.Assert;
import org.testng.annotations.Test;

public class testngBasic {

    @Test
    public void foo() {
        System.setProperty("webdriver.chrome.driver","C:\\WebDrivers\\chromedriver.exe");
        ChromeOptions options = new ChromeOptions();
        options.addArguments("--start-maximized");
        options.setExperimentalOption("excludeSwitches", Collections.singletonList("enable-automation"));
        options.setExperimentalOption("useAutomationExtension", false);
        ChromeDriver driver = new ChromeDriver(options);
        DevTools devTools = driver.getDevTools();
        devTools.createSession();
        devTools.send(Network.clearBrowserCache());
        devTools.send(Network.enable(Optional.empty(), Optional.empty(), Optional.of(100000000)));
        devTools.send(Network.setCacheDisabled(true));
        devTools.addListener(Network.responseReceived(), responseReceived -> Assert.assertEquals(false, responseReceived.getResponse().getFromDiskCache()));
        driver.get("https://www.google.com/");

  }
}

This usecase

Possibly your code have nothing to do with java.util.concurrent.TimeoutException error and the real issue is either with the:

• jdk version
• guava version

Solution

Ensure that:

• JDK is upgraded to current levels JDK 8u252.
• guava is upgraded to guava-29.0-jre.

Outro

Disable cache in Selenium Chrome Driver

It worked fine

public void testCdt {
    final ChromeLauncher launcher = new ChromeLauncher();
    final ChromeService chromeService = launcher.launch(false);
    final ChromeTab tab = chromeService.createTab();
    final ChromeDevToolsService devToolsService = chromeService.createDevToolsService(tab);
    final Page page = devToolsService.getPage();
    Network network = devToolsService.getNetwork();
    // Clear browser cached
    network.clearBrowserCache();
    // Log requests with onRequestWillBeSent event handler.
    network.onRequestWillBeSent(
            event ->
                    System.out.printf(
                            "request: %s %s%s",
                            event.getRequest().getMethod(),
                            event.getRequest().getUrl(),
                            System.lineSeparator()));

    network.onLoadingFinished(
            event -> {
              chromeService.closeTab(tab);
              launcher.close();
            });
    network.enable();
    page.navigate("http://github.com");
    devToolsService.waitUntilClosed();
  }