2

I'm beginner in this, so be patient :) I try to launch simple test and have a problem caused by: java.lang.ClassNotFoundException: org.openqa.selenium.remote.codec.w3c.W3CHttpCommandCodec

I have set java-client 7.1.0 and selenium-server-standalone-3.141.59 Other libs u can see here: https://screencast.com/t/I3Zg7KDFxbO Seems like I have done something wrong in dependencies but I couldn't find understandable (for me) answer what I should do.

java.lang.NoClassDefFoundError: org/openqa/selenium/remote/codec/w3c/W3CHttpCommandCodec

at io.appium.java_client.remote.AppiumCommandExecutor.execute(AppiumCommandExecutor.java:262)
at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:552)
at io.appium.java_client.DefaultGenericMobileDriver.execute(DefaultGenericMobileDriver.java:41)
at io.appium.java_client.AppiumDriver.execute(AppiumDriver.java:1)
at io.appium.java_client.android.AndroidDriver.execute(AndroidDriver.java:1)
at org.openqa.selenium.remote.RemoteWebDriver.startSession(RemoteWebDriver.java:213)
at io.appium.java_client.AppiumDriver.startSession(AppiumDriver.java:323)
at org.openqa.selenium.remote.RemoteWebDriver.<init>(RemoteWebDriver.java:131)
at io.appium.java_client.DefaultGenericMobileDriver.<init>(DefaultGenericMobileDriver.java:37)
at io.appium.java_client.AppiumDriver.<init>(AppiumDriver.java:86)
at io.appium.java_client.AppiumDriver.<init>(AppiumDriver.java:96)
at io.appium.java_client.android.AndroidDriver.<init>(AndroidDriver.java:94)
at FirstTest.setUp(FirstTest.kt:28)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:24)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
Caused by: java.lang.ClassNotFoundException: org.openqa.selenium.remote.codec.w3c.W3CHttpCommandCodec
at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 36 more
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3 Answers 3

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2

Was facing the same issue, I just updated the selenium java client to 4.0.0-alpha-1 issue got resolved

my dependecies : 

     <dependency>
        <groupId>org.testng</groupId>
        <artifactId>testng</artifactId>
        <version>6.14.3</version>
        <scope>compile</scope>
    </dependency>

    <dependency>
        <groupId>org.seleniumhq.selenium</groupId>
        <artifactId>selenium-java</artifactId>
        <version>4.0.0-alpha-1</version>
    </dependency>


    <dependency>
        <groupId>io.appium</groupId>
        <artifactId>java-client</artifactId>
        <version>7.1.0</version>
    </dependency>

    <dependency>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>3.7.0</version>
    </dependency>
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Comments

1

You have to add a webdriver e.g.:

<dependency>
    <groupId>org.seleniumhq.selenium</groupId>
    <artifactId>selenium-firefox-driver</artifactId>
    <version>3.141.59</version>
</dependency>

org/openqa/selenium/remote/codec/w3c/W3CHttpCommandCodec is part of 

<dependency>
   <groupId>org.seleniumhq.selenium</groupId>
   <artifactId>selenium-remote-driver</artifactId>
   <version>3.14.0</version>
</dependency>

which is a dependency from selenium-firefox-driver

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6 Comments

Unfortunately It doesn't help.
Do you use maven?
no, I don't use any builder for now. Just adding libs to external in IDEA. I've added the remote driver, but the error is still the same screencast.com/t/6S7c4ZNPq4
ok so you have to add every dependency by hand, like selenium-remote-driver
Well as I can see W3CHttpCommandCodec in the package org.openqa.selenium.remote.http, but it needs to be in org.openqa.selenium.remote.codec.w3c ...
|
0

You may get this exception when you update one dependency. For example: Appium java client to latest but the dependent Selenium Java dependencies are not updated to latest then you might expect this issue. So look at your Maven dependencies of related ones.

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