gistfile1.txt

16:28:17.938 INFO - Executing: [new session: Capabilities [{marionette=true, browserName=firefox, javascriptEnabled=true, version=, platform=ANY}]])
16:28:17.966 INFO - Creating a new session for Capabilities [{marionette=true, browserName=firefox, javascriptEnabled=true, version=, platform=ANY}]
16:28:18.168 INFO - Attempting bi-dialect session, assuming Postel's Law holds true on the remote end
1475526498667	Marionette	INFO	Listening on port 64184
1475526499636	Marionette	INFO	startBrowser bf03fcb9-11aa-a240-b517-b44d3e0ed157
16:28:19.820 INFO - Detected dialect: W3C
16:28:19.835 INFO - Done: [new session: Capabilities [{marionette=true, firefoxOptions=org.openqa.selenium.firefox.FirefoxOptions@33b5c24a, browserName=firefox, javascriptEnabled=true, version=, platform=ANY}]]
16:28:19.873 INFO - Executing: [get window size])
16:28:19.880 WARN - Exception thrown
java.lang.NullPointerException
	at org.openqa.selenium.remote.RemoteWebDriver$RemoteWebDriverOptions$RemoteWindow.getSize(RemoteWebDriver.java:863)
	at org.openqa.selenium.support.events.EventFiringWebDriver$EventFiringWindow.getSize(EventFiringWebDriver.java:632)
	at org.openqa.selenium.remote.server.handler.GetWindowSize.call(GetWindowSize.java:31)
	at org.openqa.selenium.remote.server.handler.GetWindowSize.call(GetWindowSize.java:23)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at org.openqa.selenium.remote.server.DefaultSession$1.run(DefaultSession.java:176)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
16:28:19.922 WARN - Exception: null