Issue : NoClassDefFoundError with selenium/remote/http/W3CHttpCommandCodec

[77ripdrive]

The problem

When I try to use Selenium 4 in my test case, the error java.lang.NoClassDefFoundError occurs: org / openqa / selenium / remote / http / W3CHttpCommandCodec.

Environment

• Appium app version that exhibits the issue: 1.15.1
  *Appium version : 'io.appium', name: 'java-client', version: '7.3.0'
• Selenium version : 'selenium-java', version: '4.0.0-alpha-3'
• Last Selenium version that did not exhibit the issue : 'selenium-java', version: '3.141.59'
• Desktop OS/version used to run Appium: Win 10
• Node.js version (unless using Appium.app|exe):
• Npm or Yarn package manager: Gradle 6.0.1
• Mobile platform/version under test:Android 8
• Real device or emulator/simulator:Emulator

Details

When I try to use Selenium 4 in my test case, the error java.lang.NoClassDefFoundError occurs: org / openqa / selenium / remote / http / W3CHttpCommandCodec.
When using earlier dependencies Selenium up to 4 such errors do not occur.
How can this be due to changes in the implementation of Selenium 4?!

Link to Appium logs

https://gist.github.com/77ripdrive/8007368e8e65bebfad8189a6564f2b9d

Code To Reproduce Issue [ Good To Have ]

https://github.com/77ripdrive/Mobile-Emulators

This is a working example with Selenium 3. To reproduce the error, you need to change the version of the dependency in the file build.gradle line 25 :
implementation group: 'org.seleniumhq.selenium', name: 'selenium-java', version: '3.141.59'
to the dependency version :
implementation group: 'org.seleniumhq.selenium', name: 'selenium-java', version: '4.0.0-alpha-3'

[valfirst]

@77ripdrive here is a dependency compatibility matrix:

Appium Java client	Selenium Java client
7.3.0	3.141.59
7.2.0	3.141.59
7.1.0	4.0.0-alpha-1
7.0.0	3.141.59

The version of Selenium Java client was downgraded in 7.2.0: f5470d9. The reason is users complains: https://twitter.com/imalittletester/status/1162297550713622529.

Moreover Appium Java client is not compatible with Selenium Java client of versions 4.0.0-alpha-2, 4.0.0-alpha-3 because of this change: SeleniumHQ/selenium@96fec3c#diff-fa76272f866d8067bb11a32f27773026

[77ripdrive]

Thanks. When Appium plans to support new features from Selenium 4.

[valfirst]

@77ripdrive Selenium 4 is still in alpha, just curious: which particular features from Selenium 4 are you interested in?

[77ripdrive]

👍 :) I tried to screw Relative Locators , it was interesting to see .....
type -> toLeftOf() or toRightOf() or above() or below() or near() .

[acarvalhomatos]

@valfirst hi there, i need to get selenium 4 alpha 2 working with appium to get edge chromium testing. any plans on new updates?

[valfirst]

@acarvalhomatos the alpha selenium java client was reverted in 7.2.0. (https://twitter.com/imalittletester/status/1162297550713622529)

regarding updates it's better to ask @SrinivasanTarget, @mykola-mokhnach, @KazuCocoa

[mykola-mokhnach]

There are no plans to incorporate alpha versions of selenium into stable java client releases.

[blackburn-ian]

@mykola-mokhnach, @SrinivasanTarget , @KazuCocoa
Are there any plans to support beta versions of Selenium - perhaps in beta versions of Appium? (there's at least one improvement in 4.0.0-beta-4 that I would like to make use of in my test framework)