java.lang.ExceptionInInitializerError while running the Appium test - appium

Question

I am getting java.lang.ExceptionInInitializerError error when I ran the Appium script. I am using Page Factory.
Using Java-client v6.1.0 & Appium v1.9.1
Error:
[RemoteTestNG] detected TestNG version 6.14.2
Dec 06, 2018 12:59:41 PM io.appium.java_client.remote.AppiumCommandExecutor$1 lambda$0
INFO: Detected dialect: OSS
FAILED: Tests1
java.lang.ExceptionInInitializerError
at io.appium.java_client.pagefactory.utils.ProxyFactory.getEnhancedProxy(ProxyFactory.java:52)
at io.appium.java_client.pagefactory.utils.ProxyFactory.getEnhancedProxy(ProxyFactory.java:33)
at io.appium.java_client.pagefactory.AppiumFieldDecorator.proxyForAnElement(AppiumFieldDecorator.java:217)
at io.appium.java_client.pagefactory.AppiumFieldDecorator.access$0(AppiumFieldDecorator.java:215)
at io.appium.java_client.pagefactory.AppiumFieldDecorator$1.proxyForLocator(AppiumFieldDecorator.java:107)
at org.openqa.selenium.support.pagefactory.DefaultFieldDecorator.decorate(DefaultFieldDecorator.java:62)
at io.appium.java_client.pagefactory.AppiumFieldDecorator.decorate(AppiumFieldDecorator.java:155)
at org.openqa.selenium.support.PageFactory.proxyFields(PageFactory.java:113)
at org.openqa.selenium.support.PageFactory.initElements(PageFactory.java:105)
at com.****.pages.MainScreen.<init>(MainScreen.java:25)
at com.****.tests.smoke.Test.Tests1(Test.java:32)
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.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:124)
at org.testng.internal.Invoker.invokeMethod(Invoker.java:580)
at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:716)
at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:988)
at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:125)
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:109)
at org.testng.TestRunner.privateRun(TestRunner.java:648)
at org.testng.TestRunner.run(TestRunner.java:505)
at org.testng.SuiteRunner.runTest(SuiteRunner.java:455)
at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:450)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:415)
at org.testng.SuiteRunner.run(SuiteRunner.java:364)
at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:84)
at org.testng.TestNG.runSuitesSequentially(TestNG.java:1208)
at org.testng.TestNG.runSuitesLocally(TestNG.java:1137)
at org.testng.TestNG.runSuites(TestNG.java:1049)
at org.testng.TestNG.run(TestNG.java:1017)
at org.testng.remote.AbstractRemoteTestNG.run(AbstractRemoteTestNG.java:114)
at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:251)
at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:77)
Caused by: java.lang.IllegalArgumentException
at org.objectweb.asm.ClassVisitor.<init>(ClassVisitor.java:79)
at net.sf.cglib.core.DebuggingClassWriter.<init>(DebuggingClassWriter.java:49)
at net.sf.cglib.core.DefaultGeneratorStrategy.getClassVisitor(DefaultGeneratorStrategy.java:30)
at net.sf.cglib.core.DefaultGeneratorStrategy.generate(DefaultGeneratorStrategy.java:24)
at net.sf.cglib.core.AbstractClassGenerator.generate(AbstractClassGenerator.java:329)
at net.sf.cglib.core.AbstractClassGenerator$ClassLoaderData$3.apply(AbstractClassGenerator.java:93)
at net.sf.cglib.core.AbstractClassGenerator$ClassLoaderData$3.apply(AbstractClassGenerator.java:91)
at net.sf.cglib.core.internal.LoadingCache$2.call(LoadingCache.java:54)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at net.sf.cglib.core.internal.LoadingCache.createEntry(LoadingCache.java:61)
at net.sf.cglib.core.internal.LoadingCache.get(LoadingCache.java:34)
at net.sf.cglib.core.AbstractClassGenerator$ClassLoaderData.get(AbstractClassGenerator.java:116)
at net.sf.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:291)
at net.sf.cglib.core.KeyFactory$Generator.create(KeyFactory.java:221)
at net.sf.cglib.core.KeyFactory.create(KeyFactory.java:174)
at net.sf.cglib.core.KeyFactory.create(KeyFactory.java:153)
at net.sf.cglib.proxy.Enhancer.<clinit>(Enhancer.java:73)
... 36 more
===============================================
Default test
Tests run: 1, Failures: 1, Skips: 0
===============================================
===============================================
Default suite
Total tests run: 1, Failures: 1, Skips: 0
===============================================
Automation Code:
DriverSetup code:
package com.****.utils;
import java.net.MalformedURLException;
import java.net.URL;
import org.openqa.selenium.remote.DesiredCapabilities;
import com.****.config.Config;
import io.appium.java_client.MobileElement;
import io.appium.java_client.android.Activity;
import io.appium.java_client.android.AndroidDriver;
import io.appium.java_client.appmanagement.ApplicationState;
public class DriverSetup{
private Config config = new Config();
private AndroidDriver<MobileElement> driver;
public AndroidDriver<MobileElement> getDriver()
{
if (driver == null) {
driver = initDriver();
} else {
driver.queryAppState(config.APP_PACKAGE);
if (ApplicationState.NOT_RUNNING != null) {
Activity activity = new Activity(config.APP_PACKAGE, "SplashActivity");
activity.setAppWaitPackage(config.APP_PACKAGE);
activity.setAppWaitActivity("SplashActivity");
driver.startActivity(activity);
} else if (ApplicationState.RUNNING_IN_BACKGROUND != null) {
driver.launchApp();
}
}
return driver;
}
public AndroidDriver<MobileElement> initDriver()
{
DesiredCapabilities caps = new DesiredCapabilities();
caps.setCapability("automationName", config.AUTOMATION_NAME);
caps.setCapability("browserName", config.BROWSER_NAME);
caps.setCapability("deviceName", config.DEVICE_NAME);
caps.setCapability("platformName", config.PLATFORM_NAME);
caps.setCapability("platformVersion", config.PLATFORM_VERSION);
caps.setCapability("app", System.getProperty("user.dir") + config.APP_PATH);
caps.setCapability("newCommandTimeout", config.NEW_COMMAND_TIMEOUT);
caps.setCapability("autoAcceptAlerts", config.AUTO_ACCEPT_ALERTS);
caps.setCapability("noReset", config.NO_RESET);
caps.setCapability("autoGrantPermissions", config.AUTO_GRANT_PERMISSIONS);
try {
driver = new AndroidDriver<MobileElement>(new URL(config.APPIUM_SERVER_URL), caps);
} catch (MalformedURLException e) {
e.printStackTrace();
}
return driver;
}
}
Test Method Code:
package com.****.tests.smoke;
import org.testng.annotations.BeforeMethod;
import com.****.pages.MainScreen;
import com.****.utils.DriverSetup;
import io.appium.java_client.MobileElement;
import io.appium.java_client.android.AndroidDriver;
public class Test {
AndroidDriver<MobileElement> driver;
#BeforeMethod
public void setUp()
{
DriverSetup com = new DriverSetup();
driver = com.getDriver();
}
#org.testng.annotations.Test
public void Tests1() throws InterruptedException
{
MainScreen mainScreen = new MainScreen(driver);
Thread.sleep(10000);
mainScreen.allowAccessToUSBDevice();
}
}
Page Objectes class
public class MainScreen {
AndroidDriver<MobileElement> driver;
public MainScreen(AndroidDriver<MobileElement> driver) {
this.driver = driver;
PageFactory.initElements(new AppiumFieldDecorator(driver, Duration.ofSeconds(5)), this);
}
#AndroidFindBy(xpath = "/hierarchy/android.widget.FrameLayout/android.widget.FrameLayout/android.widget.FrameLayout/android.widget.LinearLayout/android.widget.ScrollView/android.widget.LinearLayout/android.widget.Button[2]")
private MobileElement accessUSBDeviceAlertButton;
public void allowAccessToUSBDevice() {
accessUSBDeviceAlertButton.click();
}
}
Can anyone please let me know where the problem is? Is it with code or the libraries or tools?
Thanks in advance,
Shiva