Selenium Safari WebDriver Not Working

Question

I can get all of these tests to pass except the one for Safari. How can I can I make the Safari WebDriver test pass?

The Tests:

import static org.hamcrest.CoreMatchers.equalTo;
import static org.junit.Assert.assertThat;

import org.junit.Test;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.openqa.selenium.safari.SafariDriver;


public class SeleniumSetupTest
{

    @Test
    public void testThatSeleniumIsCorrectlyConfiguredWithChrome()
    {
        WebDriver chromeDriver = new ChromeDriver();
        testDriver(chromeDriver);
    }

    @Test
    public void testThatSeleniumIsCorrectlyConfiguredWithFireFox()
    {
        WebDriver firefoxDriver = new FirefoxDriver();
        testDriver(firefoxDriver);
    }

    @Test
    public void testThatSeleniumIsCorrectlyConfiguredWithSafari()
    {
        WebDriver safariDriver = new SafariDriver();
        testDriver(safariDriver);
    }

    private void testDriver(WebDriver webDriver)
    {
        webDriver.get("http://www.google.com");
        String pageTitle = webDriver.getTitle();
        assertThat(pageTitle, equalTo("Google"));
        webDriver.quit();
    }

}

The output from Maven:

-------------------------------------------------------
 T E S T S
-------------------------------------------------------
Running com.example.selenium.SeleniumSetupTest
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/Users/jared/.m2/repository/org/slf4j/slf4j-log4j12/1.7.2/slf4j-log4j12-1.7.2.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/Users/jared/.m2/repository/ch/qos/logback/logback-classic/1.0.12/logback-classic-1.0.12.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
SLF4J: Actual binding is of type [org.slf4j.impl.Log4jLoggerFactory]
Starting ChromeDriver (v2.3) on port 2247
log4j:WARN No appenders could be found for logger (org.apache.http.impl.conn.tsccm.ThreadSafeClientConnManager).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
Sep 10, 2013 10:16:23 AM org.openqa.selenium.safari.SafariDriverServer start
INFO: Server started on port 33337
Tests run: 3, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 10.583 sec <<< FAILURE!
testThatSeleniumIsCorrectlyConfiguredWithSafari(com.example.selenium.SeleniumSetupTest)  Time elapsed: 0.09 sec  <<< ERROR!
java.lang.NoSuchMethodError: com.google.common.io.Resources.asByteSource(Ljava/net/URL;)Lcom/google/common/io/ByteSource;
    at org.openqa.selenium.safari.SafariExtensions.getExtensionResource(SafariExtensions.java:293)
    at org.openqa.selenium.safari.SafariExtensions.install(SafariExtensions.java:217)
    at org.openqa.selenium.safari.SafariDriverCommandExecutor.start(SafariDriverCommandExecutor.java:83)
    at org.openqa.selenium.safari.SafariDriver.startClient(SafariDriver.java:115)
    at org.openqa.selenium.remote.RemoteWebDriver.<init>(RemoteWebDriver.java:110)
    at org.openqa.selenium.remote.RemoteWebDriver.<init>(RemoteWebDriver.java:115)
    at org.openqa.selenium.safari.SafariDriver.<init>(SafariDriver.java:101)
    at org.openqa.selenium.safari.SafariDriver.<init>(SafariDriver.java:85)
    at com.example.selenium.SeleniumSetupTest.testThatSeleniumIsCorrectlyConfiguredWithSafari(SeleniumSetupTest.java:33)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.junit.runners.model.FrameworkMethod$1.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.InvokeMethod.evaluate(InvokeMethod.java:20)
    at org.junit.runners.BlockJUnit4ClassRunner.runNotIgnored(BlockJUnit4ClassRunner.java:79)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:71)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:49)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:236)
    at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:134)
    at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:113)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:189)
    at org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:165)
    at org.apache.maven.surefire.booter.ProviderFactory.invokeProvider(ProviderFactory.java:85)
    at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:103)
    at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:74)

Results :

Tests in error: 
  testThatSeleniumIsCorrectlyConfiguredWithSafari(com.example.selenium.SeleniumSetupTest): com.google.common.io.Resources.asByteSource(Ljava/net/URL;)Lcom/google/common/io/ByteSource;

Tests run: 3, Failures: 0, Errors: 1, Skipped: 0

[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------

Answer 1

The Safari driver seems to be using Google's Guava packages. The exception you are seeing is telling you that the Safari driver is expecting a different version of Guava then is found. The method asByteSource(java.net.URL url) is not found in the Class Resources (which seems to be reflected in the latest source code)

You will most likely have an older Guava version on your classpath as well which is throwing the safari driver off as it expects a newer one. Inspect your classpath figure out which versions are loaded and resolve your conflict by removing one of them.