"java.lang.NoClassDefFoundError" Error when running Selenium RC script

Question

First of all I have recorded the script in Selenium IDE, then exported into the junit4 (RC), then copied the junit4 (RC) code into Eclipse IDE. When I run the project with junit test, I found the error below. (I have included all the jars in eclipse.)

ERROR:
java.lang.NoClassDefFoundError: com/google/common/base/Charsets
 at com.thoughtworks.selenium.HttpCommandProcessor.getOutputStreamWriter(HttpCommandProcessor.java:149)
 at com.thoughtworks.selenium.HttpCommandProcessor.getCommandResponseAsString(HttpCommandProcessor.java:176)
 at com.thoughtworks.selenium.HttpCommandProcessor.executeCommandOnServlet(HttpCommandProcessor.java:118)
 at com.thoughtworks.selenium.HttpCommandProcessor.doCommand(HttpCommandProcessor.java:101)
 at com.thoughtworks.selenium.HttpCommandProcessor.getString(HttpCommandProcessor.java:275)
 at com.thoughtworks.selenium.HttpCommandProcessor.start(HttpCommandProcessor.java:237)
 at com.thoughtworks.selenium.DefaultSelenium.start(DefaultSelenium.java:100)
 at com.example.tests.MyFirstSelenium.setUp(MyFirstSelenium.java:12)
 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.junit.runners.model.FrameworkMethod1ドル.runReflectiveCall(FrameworkMethod.java:44)
 at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
 at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
 at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:27)
 at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
 at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:73)
 at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:46)
 at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:180)
 at org.junit.runners.ParentRunner.access000ドル(ParentRunner.java:41)
 at org.junit.runners.ParentRunner1ドル.evaluate(ParentRunner.java:173)
 at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
 at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
 at org.junit.runners.ParentRunner.run(ParentRunner.java:220)
 at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:46)
 at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
 at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
 at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
 at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
 at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)

I am really stuck at this point. Below is my exported code:

package com.example.tests;
import com.thoughtworks.selenium.*;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
public class MyFirstSelenium extends SeleneseTestBase {
 @Before
 public void setUp() throws Exception {
 selenium = new DefaultSelenium("localhost", 4444, "*chrome", "http://50.116.76.60/");
 selenium.start();
 }
 @Test
 public void testUntitled() throws Exception {
 selenium.open("/friend_circle/admin/login");
 selenium.type("id=username", "admin");
 selenium.type("id=pass", "admin");
 selenium.click("id=submit");
 selenium.waitForPageToLoad("30000");
 }
 @After
 public void tearDown() throws Exception {
 selenium.stop();
 }
}

• user246: Welcome to SQA, vinod. Selenium ships with lots of additional jar files. Is is possible that your Eclipse project does not include them all? com/google/common/base/Charsets is part of the guava jar.
• vinod guneja: Hi i Include all the external jars into my eclipse IDE ,But i did not include the guava.jar. Has guava.jar is useful to the run the Test case.

Answer 1

I assume that you are not using stand-alone jar of selenium. Can you download Selenium Server Standalone jar and use it in eclipse. This is the only jar you need from selenium-java as it encompasses all required class files. You can remove other Selenium related jars from your eclipse.

• vinod guneja: HI tarun, Thanks for your replay, Now Its working for me.
• Tarun: @vinodguneja once an answer helps you, you can accept it as right answer