Selenium: Logging in 3.0.1 - Browser Initialization - ProtocolHandshake

[londoner1234]

Meta -

OS: Windows 7

Selenium Version: 3.0.1
Browser: Seems to effect any browsers started on a remoteWebDriver

Browser Version:
ANY

Expected Behavior -

Not a huge issue but just something I've noticed with our automated suite
As it adds a good bit to build log
On anything before 3.0.0
Starting up a selenium browser instance on a remoteWebDriver wouldn't output any logging information

Actual Behavior -

Could be something I'm missing but just not sure
Now when a browser is started up it seems to output this to the command line for each browser that is started up

Nov 10, 2016 11:58:24 AM org.openqa.selenium.remote.ProtocolHandshake createSession
INFO: Attempting bi-dialect session, assuming Postel's Law holds true on the remote end
Nov 10, 2016 11:58:27 AM org.openqa.selenium.remote.ProtocolHandshake createSession
INFO: Detected dialect: OSS

Steps to reproduce -

Initialize browser
driver = new RemoteWebDriver(new URL(hub), capability);

[londoner1234]

@shs96c Not sure If you know what I'm doing wrong

[matthew-williamson-hpe]

I have this 'issue' as well, when I investigated as far as I can tell it _should_ be printing it out, although our jobs in jenkins occasionally interpret it as an error which is interesting.

[conleth]

Yeah, it's nothing major but it would be nice not to see it.

[drieks]

I can confirm that only changing the Selenium API from 2.53.1 to 3.0.0 (with no other changes) will introduce this error message.

But it seems that this is only a "warning" because it has no impact to the tests executed.

[drieks]

see also mozilla/geckodriver#229

[drieks]

Also happens on Linux, I think:

OS: Any
Browser: Any
Selenium: 3.0.0 and 3.0.1

[drieks]

@andreastt can you add a link to this issue in mozilla/geckodriver#229 ?

[mach6]

The INFO message was added in Se3. It is not an error or warning.
The only way to disable it is to disable or reconfigure the java logger.

[londoner1234]

I'm still having trouble with this trying to explicitly remove the logging from this class
Would you know what I'm missing

[AutomatedTester]

This is an INFO message and just so people can see what is going on. If it were ERROR then it would be something to worry about

[krpradeep9]

I am getting this issue with following configuration

Standalone 2.53.1
Chromedriver 2.9
JDK 1.8.0_66

I even tried Standalone 3.0

[chandlerlucius]

Hey guys,

I know this is not an error or a problem, but this was showing up in our JUnit results and I did not want to see it. I just wanted to mention what I did to remove this "ERROR" for future people who come to this page.

import java.util.logging.Level;
import java.util.logging.Logger;
Logger.getLogger("org.openqa.selenium.remote").setLevel(Level.OFF);

I was trying everything I could to turn this logging off with log4j, and it was not until I read the java source code. Once I realized they used java.util.logging, it was relatively simple to turn it off.

Enjoy

[nkavian]

I had to do the following to get the ChromeDriver to be completely quiet:

Logger.getLogger("org.openqa.selenium.remote").setLevel(Level.OFF);
System.setProperty("webdriver.chrome.silentOutput", "true");
ChromeOptions options = new ChromeOptions();
options.addArguments("--headless");
ChromeDriver chrome = new ChromeDriver(options);