RemoteWebElement class shows error in compile time. But all the java-client libs downloaded.

[varun2810]

java.lang.ClassNotFoundException: org.openqa.selenium.remote.RemoteWebElement
at net.bytebuddy.dynamic.loading.ByteArrayClassLoader.findClass(ByteArrayClassLoader.java:404)
at java.lang.ClassLoader.loadClass(ClassLoader.java:418)
at java.lang.ClassLoader.loadClass(ClassLoader.java:351)
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:756)
at net.bytebuddy.dynamic.loading.ByteArrayClassLoader.access$300(ByteArrayClassLoader.java:57)
at net.bytebuddy.dynamic.loading.ByteArrayClassLoader$ClassDefinitionAction.run(ByteArrayClassLoader.java:687)
at net.by

Java-Client-8.6.0
OS : Mac

[varun2810]

public LoginPage(AndroidDriver driver) {
this.driver = driver;
PageFactory.initElements(new AppiumFieldDecorator(driver), this);
}

// Cliq Login
@AndroidFindBy(id = "signinbtn")
public WebElement gettingStarted;

@AndroidFindBy(xpath = "//android.widget.EditText[@resource-id='login_id']")
WebElement emailField;

My code

[valfirst]

The error means Selenium dependencies are missed in the classpath

[varun2810]

@valfirst below is the complete issue i'm facing.

26-Oct-2023 18:32:13.548 SEVERE [http-9090-1] org.apache.catalina.core.StandardWrapperValve.invoke Servlet.service() for servlet WebdriverApi threw exception
java.lang.ClassNotFoundException: org.openqa.selenium.remote.RemoteWebElement
at net.bytebuddy.dynamic.loading.ByteArrayClassLoader.findClass(ByteArrayClassLoader.java:404)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:588)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
at java.base/java.lang.ClassLoader.defineClass1(Native Method)
at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1016)
at net.bytebuddy.dynamic.loading.ByteArrayClassLoader.access$300(ByteArrayClassLoader.java:57)
at net.bytebuddy.dynamic.loading.ByteArrayClassLoader$ClassDefinitionAction.run(ByteArrayClassLoader.java:687)
at net.bytebuddy.dynamic.loading.ByteArrayClassLoader$ClassDefinitionAction.run(ByteArrayClassLoader.java:639)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at net.bytebuddy.dynamic.loading.ByteArrayClassLoader.doPrivileged(ByteArrayClassLoader.java)
at net.bytebuddy.dynamic.loading.ByteArrayClassLoader.findClass(ByteArrayClassLoader.java:406)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:588)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
at java.base/java.lang.Class.forName0(Native Method)
at java.base/java.lang.Class.forName(Class.java:398)
at net.bytebuddy.dynamic.loading.ByteArrayClassLoader.load(ByteArrayClassLoader.java:361)
at net.bytebuddy.dynamic.loading.ClassLoadingStrategy$Default$WrappingDispatcher.load(ClassLoadingStrategy.java:367)
at net.bytebuddy.dynamic.loading.ClassLoadingStrategy$Default.load(ClassLoadingStrategy.java:148)
at net.bytebuddy.dynamic.TypeResolutionStrategy$Passive.initialize(TypeResolutionStrategy.java:101)
at net.bytebuddy.dynamic.DynamicType$Default$Unloaded.load(DynamicType.java:6317)
at io.appium.java_client.proxy.Helpers.createProxy(Helpers.java:122)
at io.appium.java_client.pagefactory.utils.ProxyFactory.getEnhancedProxy(ProxyFactory.java:86)
at io.appium.java_client.pagefactory.utils.ProxyFactory.getEnhancedProxy(ProxyFactory.java:61)
at io.appium.java_client.pagefactory.AppiumFieldDecorator.proxyForAnElement(AppiumFieldDecorator.java:248)
at io.appium.java_client.pagefactory.AppiumFieldDecorator.access$000(AppiumFieldDecorator.java:63)
at io.appium.java_client.pagefactory.AppiumFieldDecorator$1.proxyForLocator(AppiumFieldDecorator.java:147)
at org.openqa.selenium.support.pagefactory.DefaultFieldDecorator.decorate(DefaultFieldDecorator.java:63)
at io.appium.java_client.pagefactory.AppiumFieldDecorator.decorate(AppiumFieldDecorator.java:186)
at org.openqa.selenium.support.PageFactory.proxyFields(PageFactory.java:111)
at org.openqa.selenium.support.PageFactory.initElements(PageFactory.java:103)
at com.zoho.cliqmobile.android.pageclass.LoginPage.(LoginPage.java:38)
at com.zoho.cliqmobile.android.testclass.LoginTest.(LoginTest.java:35)

[varun2810]

The issue happens in AppiumFieldDecorator initiate elements in page factory.

public LoginPage(AndroidDriver driver) {
this.driver = driver;
PageFactory.initElements(new AppiumFieldDecorator(driver), this);
}
@AndroidFindBy(id = "signinbtn")
public WebElement gettingStarted;

The above code works when i change the PageFactory.initElements(new AppiumFieldDecorator(driver), this); to PageFactory.initElements((driver), this);. But when i remove AppiumFieldDecorator, @AndroidFindby doesnt work.

[varun2810]

Environment used :
Java : Jdk11
Jars used : Java-client-8.6.0
Selenium jars used : Selenium jars which is compiled with java-client-8.6.0

[ashwithpoojary98]

@varun2810 check your pom file for jdk

[uck82]

I can confirm the same issue on my side using Java-Client-8.6.0 in an Eclipse environment with jdk17.
Several approaches to enhance class loading failed.
I tried both: to only use the java-client dependency in the pom or to declare the respective depdencies themselves (seleniuem-remote-driver, byte-buddy, etc).
Verbose logging confirmed, that the RemoteWebElement class is loaded for the requested version (4.13.0).

Any update on this issue or a possible workaround, which allows the further use of AndroidFindby?

[ranjanashish00]

Facing same issue.

Platform: Mac
JDK: 21
Appium Java Client: 8.5.1
Selenium Java: 4.10.0
Selenium Server: 4.0.0-alpha-2
webdrivermanager: 5.4.1

[valfirst]

@ranjanashish00 @uck82 @varun2810 please migrate to Appium Java client 9.0.0 and check if the issues is reproduced

[ranjanashish00]

@valfirst So according to the matrix: https://github.com/appium/java-client?tab=readme-ov-file#compatibility-matrix
I have updated first to

• appium: 8.6.0
• selenium: 4.13.0
  Still faing the issue: java.lang.NoClassDefFoundError: org/openqa/selenium/remote/RemoteWebElement

Then I have updated

• appium: 9.0.0
• selenium: 4.14.1
  Still facing the issue: java.lang.NoClassDefFoundError: org/openqa/selenium/remote/RemoteWebElement

Then I have added below dependencyManagement, in-order to exclude Selenium from Appium

<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>io.appium</groupId>
            <artifactId>java-client</artifactId>
            <version>${appium.java.client}</version>
            <exclusions>
                <exclusion>
                    <groupId>org.seleniumhq.selenium</groupId>
                    <artifactId>selenium-support</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.seleniumhq.selenium</groupId>
                    <artifactId>selenium-remote-driver</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.seleniumhq.selenium</groupId>
                    <artifactId>selenium-api</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
    </dependencies>
</dependencyManagement>

Still facing the issue: java.lang.NoClassDefFoundError: org/openqa/selenium/remote/RemoteWebElement

Then I have updated:

• selenium: 4.16.1
  Still facing the issue: java.lang.NoClassDefFoundError: org/openqa/selenium/remote/RemoteWebElement

[valfirst]

Then I have added below dependencyManagement, in-order to exclude Selenium from Appium

why is it needed? actually this is the reason of your problem

[ranjanashish00]

I saw the Maven dependency that

• selenium-support
• selenium-remote-driver
• selenium-api

were already included in latest Appium, So though of excluding them.

Nevertheless, I have removed dependencyManagement. So now the update looks like:

• appium: 9.0.0
• selenium: 4.16.1

Still facing the issue: java.lang.NoClassDefFoundError: org/openqa/selenium/remote/RemoteWebElement

[valfirst]

@ranjanashish00 please share your full POM

[ranjanashish00]

Here it is: https://gist.github.com/AshishHypr/820d7aade48e05d74dbdac4001958818
Please let me know if you need any other info and any info on this pom file

Thank you.