Appium连接Android模拟器时出现java.lang.IllegalAccessError错误求助

环境信息 #

• Eclipse
• Appium-Server-GUI-windows-1.22.3-4
• Android模拟器
• 依赖：java-client-8.2.1.jar

测试代码 #

@Test
public void test() throws MalformedURLException{
    //fail("Not yet implemented");
    URL link = new URL("http://127.0.0.1:4723/wd/hub");
    //AndroidDriver driver;
    DesiredCapabilities capacidades = new DesiredCapabilities(); 
    capacidades.setCapability("platformName", "Android");
    capacidades.setCapability("appium:platformVersion", "13");
    capacidades.setCapability("appium:appActivity", "com.BancaxcxcxActivity");
    capacidades.setCapability("appium:appPackage", "com.banxxxv40");
    capacidades.setCapability("appium:deviceName", "sdk_gphone64_x86_64");
    
    // Inicio driver
    AndroidDriver driver = new AndroidDriver(link ,capacidades);
}

报错信息 #

java.lang.IllegalAccessError: tried to access method org.openqa.selenium.remote.http.ClientConfig.<init>(Ljava/net/URI;Ljava/time/Duration;Ljava/time/Duration;Lorg/openqa/selenium/remote/http/Filter;Ljava/net/Proxy;Lorg/openqa/selenium/Credentials;)V from class io.appium.java_client.AppiumClientConfig

    at io.appium.java_client.AppiumClientConfig.<init>(AppiumClientConfig.java:62)
    at io.appium.java_client.AppiumClientConfig.defaultConfig(AppiumClientConfig.java:79)
    at io.appium.java_client.remote.AppiumCommandExecutor.<init>(AppiumCommandExecutor.java:109)
    at io.appium.java_client.AppiumDriver.<init>(AppiumDriver.java:92)
    at io.appium.java_client.android.AndroidDriver.<init>(AndroidDriver.java:117)
    at consolePruebasTest.TestMovil.test(TestMovil.java:49)
    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:47)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
    at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
    at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
    at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
    at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)

问题原因 #

这个错误是Appium Java Client与Selenium版本不兼容导致的。java-client 8.2.1依赖特定版本的Selenium库，若项目中Selenium版本不匹配，AppiumClientConfig无法访问Selenium内部的ClientConfig构造方法（该方法为包级访问权限，版本不对会触发非法访问错误）。

解决步骤 #

1. 匹配Selenium版本：java-client 8.2.1对应的兼容Selenium版本为4.5.0。如果是手动导入jar包，需替换项目中所有Selenium相关jar为4.5.0版本；如果用Maven/Gradle，直接在依赖中指定该版本，或让java-client自动引入兼容依赖。
2. 替换过时API：DesiredCapabilities已被标记为过时，推荐使用AppiumOptions替代，修改后的代码如下：

@Test
public void test() throws MalformedURLException{
    URL link = new URL("http://127.0.0.1:4723/wd/hub");
    AppiumOptions options = new AppiumOptions();
    options.setPlatformName("Android");
    options.setPlatformVersion("13");
    options.setCapability("appium:appActivity", "com.BancaxcxcxActivity");
    options.setCapability("appium:appPackage", "com.banxxxv40");
    options.setCapability("appium:deviceName", "sdk_gphone64_x86_64");
    
    AndroidDriver driver = new AndroidDriver(link, options);
}

3. 清理依赖冲突：在Eclipse中使用Maven Dependency Analyzer检查是否存在重复或冲突的Selenium依赖，移除旧的不兼容版本，确保项目中只有一套匹配的Selenium库。

内容的提问来源于stack exchange，提问作者Danilo MJ