Handling Selenium Grid Exceptions

Most Common Selenium Grid Exceptions

While implementing the Selenium Grid I encountered few exceptions that wasted my time, here is how to handle following exceptions:

Exception:

org.openqa.selenium.WebDriverException: Error forwarding the new session cannot find : Capabilities [{browserName=internet explorer, version=11, platform=ANY}]

Command duration or timeout: 441 milliseconds

Build info: version: '2.53.0', revision: '35ae25b1534ae328c771e0856c93e187490ca824', time: '2016-03-15 10:43:46'

System info: host: 'WIN-HLIR99M6TU9', ip: '172.31.1.229', os.name: 'Windows Server 2012 R2', os.arch: 'amd64', os.version: '6.3', java.version: '1.8.0_111'

Driver info: org.openqa.selenium.remote.RemoteWebDriver

at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)

at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)

at java.lang.reflect.Constructor.newInstance(Unknown Source)

at org.openqa.selenium.remote.ErrorHandler.createThrowable(ErrorHandler.java:206)

at org.openqa.selenium.remote.ErrorHandler.throwIfResponseFailed(ErrorHandler.java:158)

at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:678)

at org.openqa.selenium.remote.RemoteWebDriver.startSession(RemoteWebDriver.java:249)

at org.openqa.selenium.remote.RemoteWebDriver.<init>(RemoteWebDriver.java:131)

at org.openqa.selenium.remote.RemoteWebDriver.<init>(RemoteWebDriver.java:158)

at com.mobileoct.tip.background.frontend.webactions.utils.WebActionsUtilities.createdriver(WebActionsUtilities.java:180)

at com.mobileoct.tip.background.frontend.FrontendTestSession.createSessionDrivers(FrontendTestSession.java:255)

at com.mobileoct.tip.background.frontend.FrontendTestSession.run(FrontendTestSession.java:345)

at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)

at java.util.concurrent.FutureTask.run(Unknown Source)

at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)

at java.lang.Thread.run(Unknown Source)

Caused by: org.openqa.selenium.WebDriverException: Error forwarding the new session cannot find : Capabilities [{browserName=internet explorer, version=11, platform=ANY}]

Build info: version: '2.53.0', revision: '35ae25b1534ae328c771e0856c93e187490ca824', time: '2016-03-15 10:43:46'

System info: host: 'WIN-HLIR99M6TU9', ip: '172.31.1.229', os.name: 'Windows Server 2012 R2', os.arch: 'amd64', os.version: '6.3', java.version: '1.8.0_111'

Driver info: driver.version: unknown

at org.openqa.grid.web.servlet.handler.RequestHandler.process(RequestHandler.java:115)

at org.openqa.grid.web.servlet.DriverServlet.process(DriverServlet.java:83)

at org.openqa.grid.web.servlet.DriverServlet.doPost(DriverServlet.java:67)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)

at org.seleniumhq.jetty9.servlet.ServletHolder.handle(ServletHolder.java:808)

at org.seleniumhq.jetty9.servlet.ServletHandler.doHandle(ServletHandler.java:587)

at org.seleniumhq.jetty9.server.session.SessionHandler.doHandle(SessionHandler.java:221)

at org.seleniumhq.jetty9.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)

at org.seleniumhq.jetty9.servlet.ServletHandler.doScope(ServletHandler.java:515)

at org.seleniumhq.jetty9.server.session.SessionHandler.doScope(SessionHandler.java:185)

at org.seleniumhq.jetty9.server.handler.ContextHandler.doScope(ContextHandler.java:1061)

at org.seleniumhq.jetty9.server.handler.ScopedHandler.handle(ScopedHandler.java:141)

at org.seleniumhq.jetty9.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)

at org.seleniumhq.jetty9.server.Server.handle(Server.java:499)

at org.seleniumhq.jetty9.server.HttpChannel.handle(HttpChannel.java:310)

at org.seleniumhq.jetty9.server.HttpConnection.onFillable(HttpConnection.java:257)

at org.seleniumhq.jetty9.io.AbstractConnection$2.run(AbstractConnection.java:540)

at org.seleniumhq.jetty9.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)

at org.seleniumhq.jetty9.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)

... 1 more

Solution: Turn firewall off.

Exception:

org.openqa.selenium.UnsupportedCommandException: <html>

<head>

<title>Error 403 Forbidden for Proxy</title>

</head>

<body>

<h2>HTTP ERROR: 403</h2><pre>Forbidden for Proxy</pre>

<p>RequestURI=/session</p>

<p><i><small><a href="http://jetty.mortbay.org">Powered by Jetty://</a></small></i></p>

</body>

</html>

Command duration or timeout: 88 milliseconds