Java code in thread function:

```
    System.setProperty("webdriver.chrome.driver", "/usr/bin/chromedriver");
    ChromeOptions chromeOptions = new ChromeOptions();
    chromeOptions.addArguments("--no-sandbox");
    chromeOptions.addArguments("--user-data-dir="+config.chromeUserDir);
    chromeOptions.addArguments("--profile-directory="+profile);
    chromeOptions.addArguments("--start-maximized");
    WebDriver driver = new ChromeDriver(chromeOptions);
    driver.get("https://www.google.com");

```

and create object and start in thread with following code

```
    Driver d1 = new Driver(profile);
    d1.start();

    Driver d2 = new Driver(profile1);
    d1.start();

```

two different profiles have been created, code works well with single thread but with multiple threads it does not open google website in two separate windows. it says,

```
Starting ChromeDriver 2.42.591071 (0b695ff80972cc1a65a5cd643186d2ae582cd4ac) on port 25692
Only local connections are allowed.
Starting ChromeDriver 2.42.591071 (0b695ff80972cc1a65a5cd643186d2ae582cd4ac) on port 25954
Only local connections are allowed.
Oct 14, 2018 2:10:46 AM org.openqa.selenium.remote.ProtocolHandshake createSession
INFO: Detected dialect: OSS
Oct 14, 2018 2:10:46 AM org.openqa.selenium.remote.ProtocolHandshake createSession
INFO: Detected dialect: OSS
Created new window in existing browser session.

```

and it opens google in only one window. window opened by anther thread remains idle. Could anyone please help?