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Cannot start Java example for Selenium / WebDriver

You have a problem with Selenium in Java. I am trying to follow the example on this page: http://code.google.com/p/selenium/wiki/GettingStarted

I type this:

$ javac -cp . -cp ~/Downloads/selenium-2.20.0/selenium-java-2.20.0-srcs.jar -cp ~/Downloads/selenium-2.20.0/selenium-java-2.20.0.jar -g Example.java

And having received this:

 alis-mac-pro:selenium ali$ java ExampleException in thread "main" java.lang.NoClassDefFoundError: Example (wrong name: org/openqa/selenium/example/Example) at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631) at java.lang.ClassLoader.defineClass(ClassLoader.java:615) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141) at java.net.URLClassLoader.defineClass(URLClassLoader.java:283) at java.net.URLClassLoader.access$000(URLClassLoader.java:58) at java.net.URLClassLoader$1.run(URLClassLoader.java:197) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:190) at java.lang.ClassLoader.loadClass(ClassLoader.java:306) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) at java.lang.ClassLoader.loadClass(ClassLoader.java:247)

I pasted the code from the example in Example.java.

UPDATE

A good soul on #java on irc.freenode.net told me to bind my records to the class path. So, instead of:

 $ javac -cp . -cp ~/Downloads/selenium-2.20.0/selenium-java-2.20.0-srcs.jar -cp ~/Downloads/selenium-2.20.0/selenium-java-2.20.0.jar -g Example.java

I used:

 javac -cp .:~/Downloads/selenium-2.20.0/selenium-java-2.20.0-srcs.jar:~/Downloads/selenium-2.20.0/selenium-java-2.20.0.jar -g Example.java

Excellent! :-) But now new errors:

 Example.java:3: cannot find symbol symbol : class By location: package org.openqa.selenium import org.openqa.selenium.By; ^ Example.java:4: cannot find symbol symbol : class WebDriver location: package org.openqa.selenium import org.openqa.selenium.WebDriver; ^ Example.java:5: cannot find symbol symbol : class WebElement location: package org.openqa.selenium import org.openqa.selenium.WebElement; ^ Example.java:6: package org.openqa.selenium.htmlunit does not exist import org.openqa.selenium.htmlunit.HtmlUnitDriver; ^ Example.java:13: cannot find symbol symbol : class WebDriver location: class org.openqa.selenium.example.Example WebDriver driver = new HtmlUnitDriver(); ^ Example.java:13: cannot find symbol symbol : class HtmlUnitDriver location: class org.openqa.selenium.example.Example WebDriver driver = new HtmlUnitDriver(); ^ Example.java:19: cannot find symbol symbol : class WebElement location: class org.openqa.selenium.example.Example WebElement element = driver.findElement(By.name("q")); ^ Example.java:19: cannot find symbol symbol : variable By location: class org.openqa.selenium.example.Example WebElement element = driver.findElement(By.name("q")); ^ 8 errors

UPDATE

I tried:

 $ jar tf ~/Downloads/selenium-2.20.0/selenium-java-2.20.0.jar

But I see the org.openqa.selenium.By class, for example, so I don’t see that I am missing any packages.

UPDATE

Good! :-) I removed the package specifier. I performed:

 $ javac -classpath ~/Downloads/selenium-2.20.0/selenium-java-2.20.0.jar Example.java

This is what the commentator gave me, except that I added the full path to the .jar. Then I did:

 $ java -cp .:~/Downloads/selenium-2.20.0/selenium-java-2.20.0.jar Example

Who gave me:

 Exception in thread "main" java.lang.NoClassDefFoundError: org/openqa/selenium/WebDriver Caused by: java.lang.ClassNotFoundException: org.openqa.selenium.WebDriver at java.net.URLClassLoader$1.run(URLClassLoader.java:202) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:190) at java.lang.ClassLoader.loadClass(ClassLoader.java:306) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) at java.lang.ClassLoader.loadClass(ClassLoader.java:247)

UPDATE

Hooray! Victory thanks to Mike Kwan. Here's what worked:

 alis-mac-pro:selenium ali$ javac -cp ".:/Users/ali/Downloads/selenium-2.20.0/selenium-java-2.20.0.jar:/Users/ali/Downloads/selenium-2.20.0/selenium-java-2.20.0-srcs.jar:/Users/ali/Downloads/selenium-2.20.0/libs/*" Example.java Note: Some input files use unchecked or unsafe operations. Note: Recompile with -Xlint:unchecked for details. alis-mac-pro:selenium ali$ java -cp ".:/Users/ali/Downloads/selenium-2.20.0/selenium-java-2.20.0.jar:/Users/ali/Downloads/selenium-2.20.0/selenium-java-2.20.0-srcs.jar:/Users/ali/Downloads/selenium-2.20.0/libs/*" Example Page title is: Cheese! - Google Search

By the way, I added the last part of the "-cp" option (for "libs / *"), because where HTMLUnit was when I downloaded the Selenium / WebDriver stuff.

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3 answers

Compile like this:

 javac -classpath selenium-server-standalone-2.20.0.jar Example.java

If you do not put the Java file in org.openqa.selenium.example , you will have to remove the package specifier. Run the compiled file as follows:

 java -cp .:selenium-server-standalone-2.20.0.jar Example

This binds the current directory to the class path.

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For those running a java dynamic web project in eclipse and getting the above error, the following link may help:

http://me-ol-blog.blogspot.co.il/2013/07/using-selenium-in-java-dynamic-web.html

Basically, he mentions that an autonomous bank is not "autonomous" when using dynamic web projects and that another bank should be used along with its dependent jars.

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Add the html driver dependency in your pom file.

 <dependency> <groupId>org.seleniumhq.selenium</groupId> <artifactId>htmlunit-driver</artifactId> <version>2.21</version> </dependency>

It works great for me.

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