Setting Remote Webdriver to run tests in a remote computer using Java

Question

I was trying to setup remote webdriver to run my tests in remote computer, as my application is deployed to my localhost. Using Selenium RC I used host address to run those tests and it worked fine; but I'm having trouble setting up the base class using remote webdriver. I've tried the following code but it has not worked. By the way, I had selenium tests which I am migrating to remote webdriver. I tried webdriver which works fine but couldn't setup the remote webdriver for remote execution. Any help will be appreciated.

public static  String base_url = "http://localhost:8084";     
Proxy proxy = new Proxy();     
proxy.setProxyAutoconfigUrl(base_url);
DesiredCapabilities capabilities = DesiredCapabilities.internetExplorer();
capabilities.setCapability(CapabilityType.PROXY, proxy);
RemoteWebDriver driver = new RemoteWebDriver(capabilities);
selenium = new WebDriverBackedSelenium(driver, base_url);

Sample grid 2 code which works for firefox but doesn't work on IE9

String hubURL = "http://myip:4444/wd/hub";
DesiredCapabilities capability = DesiredCapabilities.internetExplorer();
//capability.setBrowserName("internet explorer");
//capability.setPlatform("WINDOWS");
//capability.setVersion("9.0.4");
WebDriver driver = new RemoteWebDriver(new URL(hubURL), capability);
driver.get("http://www.google.com");
WebElement element = driver.findElement(By.name("q"));
element.sendKeys("Cheese!");
element.submit();
driver.quit(); 

Error I was receiving when it's IE9 though I specified IE from command mode from node:

Exception in thread "main" org.openqa.selenium.WebDriverException: Error forwarding the new session cannot find : {platform=WINDOWS, ensureCleanSession=true, browserName=internet explorer, version=}
Command duration or timeout: 110 milliseconds
Build info: version: '2.16.1', revision: '15405', time: '2012-01-05 12:23:11'
System info: os.name: 'Linux', os.arch: 'amd64', os.version: '2.6.38-13-generic', java.version: '1.6.0_26'
Driver info: driver.version: RemoteWebDriver
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at org.openqa.selenium.remote.ErrorHandler.createThrowable(ErrorHandler.java:147)
at org.openqa.selenium.remote.ErrorHandler.throwIfResponseFailed(ErrorHandler.java:113)
at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:435)
at org.openqa.selenium.remote.RemoteWebDriver.startSession(RemoteWebDriver.java:135)
at org.openqa.selenium.remote.RemoteWebDriver.<init>(RemoteWebDriver.java:94)
at org.openqa.selenium.remote.RemoteWebDriver.<init>(RemoteWebDriver.java:102)
at com.main.SelTest.main(SelTest.java:25)
Caused by: org.openqa.grid.common.exception.GridException: Error forwarding the new session cannot find : {platform=WINDOWS, ensureCleanSession=true, browserName=internet explorer, version=}
at org.openqa.grid.web.servlet.handler.RequestHandler.process(RequestHandler.java:151)
at org.openqa.grid.web.servlet.DriverServlet.process(DriverServlet.java:81)
at org.openqa.grid.web.servlet.DriverServlet.doPost(DriverServlet.java:67)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at org.openqa.jetty.jetty.servlet.ServletHolder.handle(ServletHolder.java:428)
at org.openqa.jetty.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:473)
at org.openqa.jetty.jetty.servlet.ServletHandler.handle(ServletHandler.java:568)
at org.openqa.jetty.http.HttpContext.handle(HttpContext.java:1530)
at org.openqa.jetty.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:633)
at org.openqa.jetty.http.HttpContext.handle(HttpContext.java:1482)
at org.openqa.jetty.http.HttpServer.service(HttpServer.java:909)
at org.openqa.jetty.http.HttpConnection.service(HttpConnection.java:820)
at org.openqa.jetty.http.HttpConnection.handleNext(HttpConnection.java:986)
at org.openqa.jetty.http.HttpConnection.handle(HttpConnection.java:837)
at org.openqa.jetty.http.SocketListener.handleConnection(SocketListener.java:243)
at org.openqa.jetty.util.ThreadedServer.handle(ThreadedServer.java:357)
at org.openqa.jetty.util.ThreadPool$PoolThread.run(ThreadPool.java:534)

Answer 1

You have to install a Selenium Server (a Hub) and register your remote WebDriver to it. Then, your client will talk to the Hub which will find a matching WebDriver to execute your test.

You can have a look at here for more information.

Answer 2

This issue came for me due to the fact that .. i was running server with selenium-server-standalone-2.32.0 and client registered with selenium-server-standalone-2.37.0 .. When i made both selenium-server-standalone-2.32.0 and ran then things worked fine