无法启动新的浏览器会话：即使我将内部浏览器设置为浏览器时，启动浏览器时也会出错

package Gmail;

import com.thoughtworks.selenium.*;

import junit.framework.TestCase;

public class Login extends TestCase{

    public static DefaultSelenium selenium =new DefaultSelenium(\"localhost\", 4444, \"*iexplore \", \"http://\");

    public static void gmailLogin()
    {
        try
        {
            selenium.start();
            selenium.open(\"http://www.gmail.com\");
            selenium.type(\"Email\", \"<EmailID>\");
            selenium.type(\"Passwd\", \"<Password>\");
            selenium.click(\"signIn\");
            selenium.setTimeout(\"50000\");
            selenium.focus(\"//input[@name=\'Sign out\']\");
            selenium.click(\"//input[@name=\'Sign out\']\");
            selenium.setTimeout(\"50000\");
        }
        catch (Exception E){System.out.println(E);}
        selenium.stop();
    }

    public static void main(String[] args) {

        gmailLogin();

    }

}