java.lang.NoClassDefFoundError when i run Marionette driver for FF 47.0.1 - selenium-webdriver

Question

I'm using Marionette driver for first time, when i run test browser window opens and it hits URL specified in test(code) but it does not enters any text in text field and throws following error.??
java.lang.NoClassDefFoundError:
org/openqa/selenium/internal/HasIdentity
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$100(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at org.openqa.selenium.remote.internal.JsonToWebElementConverter.newRemoteWebElement(JsonToWebElementConverter.java:77)
at org.openqa.selenium.remote.internal.JsonToWebElementConverter.apply(JsonToWebElementConverter.java:57)
at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:653)
at org.openqa.selenium.remote.RemoteWebDriver.findElement(RemoteWebDriver.java:363)
at org.openqa.selenium.remote.RemoteWebDriver.findElementByCssSelector(RemoteWebDriver.java:492)
at org.openqa.selenium.remote.RemoteWebDriver.findElementById(RemoteWebDriver.java:415)
at org.openqa.selenium.By$ById.findElement(By.java:214)
at org.openqa.selenium.remote.RemoteWebDriver.findElement(RemoteWebDriver.java:355)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.openqa.selenium.support.events.EventFiringWebDriver$2.invoke(EventFiringWebDriver.java:101)
at com.sun.proxy.$Proxy19.findElement(Unknown Source)
at org.openqa.selenium.support.events.EventFiringWebDriver.findElement(EventFiringWebDriver.java:184)
at com.pearson.itautomation.bca.Browser$WaitForElementFunction.apply(Browser.java:64)
at com.pearson.itautomation.bca.Browser$WaitForElementFunction.apply(Browser.java:48)
at org.openqa.selenium.support.ui.FluentWait.until(FluentWait.java:208)
at com.pearson.itautomation.bca.Browser.getElementWithWait(Browser.java:307)
at com.pearson.itautomation.bca.interaction.SendTextToElementAction.perform(SendTextToElementAction.java:64)
at com.pearson.itautomation.bca.BrowserAction.performWithStates(BrowserAction.java:104)
at com.pearson.itautomation.bca.BrowserAction.performWithStates(BrowserAction.java:80)
at pearson.ePortfolio.Actions.CommonActions.edTPALogin(CommonActions.java:181)
at TestCases_PSP.SendTaskLevelFeedbackRequest.TaskFeedbackRequest(SendTaskLevelFeedbackRequest.java:64)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:84)
at org.testng.internal.Invoker.invokeMethod(Invoker.java:714)
at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:901)
at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1231)
at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:127)
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:111)
at org.testng.TestRunner.privateRun(TestRunner.java:767)
at org.testng.TestRunner.run(TestRunner.java:617)
at org.testng.SuiteRunner.runTest(SuiteRunner.java:334)
at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:329)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:291)
at org.testng.SuiteRunner.run(SuiteRunner.java:240)
at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:86)
at org.testng.TestNG.runSuitesSequentially(TestNG.java:1224)
at org.testng.TestNG.runSuitesLocally(TestNG.java:1149)
at org.testng.TestNG.run(TestNG.java:1057)
at org.testng.remote.RemoteTestNG.run(RemoteTestNG.java:111)
at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:204)
at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:175)
Caused by: java.lang.ClassNotFoundException: org.openqa.selenium.internal.HasIdentity
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 60 more
FF browser Version:47.0.1
selenium-java :2.52.0

Answer 1

Upgrade your selenium-java to 2.53.1. Firefox 47.0.1 already fixed the issue for selenium webdriver. You can successfully run test automation for FirefoxDriver();

Answer 2

i think upgrading your selenium-API explicitly in your POM file will get you off from these error and it did in my case..
org.seleniumhq.selenium
selenium-java
2.53.0
org.seleniumhq.selenium
selenium-api
2.53.0