Unable to start a Selenium browser session using SoapUI 5.6.0
## 🐛 Bug Report
Attempting to launch a Firefox browser session as a SoapUI TestStep causes a NoSuchMethodError to occur when run using Ubuntu 20.04.2 LTS environment
## To Reproduce
Detailed steps to reproduce the behavior:
1. Follow the Selenium installation directions including the installation of the geckodriver for a Linux or Windows OS
2. Install SoapUI open source version 5.6.0
3. Move copies of the Selenium JAR files to the SoapUI /bin/ext folder
4. Launch SoapUI
5. Create a SoapUI TestSuite
6. Create a SoapUI TestCase
7. Create a SoapUI TestStep using the provided test script
8. Start the TestStep
## Expected behavior
A Firefox Browser window should open
## Test script or set of commands reproducing this issue
```
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.firefox.FirefoxDriver;
def project = testRunner.testCase.testSuite.project;
String strNAESBPurchasedStandardsURI = project.getPropertyValue("NAESBPurchasedStandardsURI");
log.info("NAESB Purchased Standards Screen URI: " + strNAESBPurchasedStandardsURI);
System.setProperty("webdriver.gecko.driver","/usr/local/bin/geckodriver");
WebDriver driver = new FirefoxDriver();
context["driver"] = driver;
driver.get(strNAESBPurchasedStandardsURI);
```
## Generated Stack Overflow
```
Wed Aug 18 15:19:38 EDT 2021:ERROR:java.lang.NoSuchMethodError: com.google.common.base.Preconditions.checkState(ZLjava/lang/String;Ljava/lang/Object;)V
java.lang.NoSuchMethodError: com.google.common.base.Preconditions.checkState(ZLjava/lang/String;Ljava/lang/Object;)V
at org.openqa.selenium.remote.service.DriverService.checkExecutable(DriverService.java:146)
at org.openqa.selenium.firefox.GeckoDriverService.access$000(GeckoDriverService.java:44)
at org.openqa.selenium.firefox.GeckoDriverService$Builder.usingFirefoxBinary(GeckoDriverService.java:160)
at org.openqa.selenium.firefox.FirefoxDriver.toExecutor(FirefoxDriver.java:187)
at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:147)
at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:125)
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490)
at org.codehaus.groovy.reflection.CachedConstructor.invoke(CachedConstructor.java:83)
at org.codehaus.groovy.runtime.callsite.ConstructorSite$ConstructorSiteNoUnwrapNoCoerce.callConstructor(ConstructorSite.java:105)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallConstructor(CallSiteArray.java:59)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callConstructor(AbstractCallSite.java:238)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callConstructor(AbstractCallSite.java:242)
at Script1.run(Script1.groovy:11)
at com.eviware.soapui.support.scripting.groovy.SoapUIGroovyScriptEngine.run(SoapUIGroovyScriptEngine.java:90)
at com.eviware.soapui.impl.wsdl.teststeps.WsdlGroovyScriptTestStep.run(WsdlGroovyScriptTestStep.java:141)
at com.eviware.soapui.impl.wsdl.panels.teststeps.GroovyScriptStepDesktopPanel$RunAction$1.run(GroovyScriptStepDesktopPanel.java:250)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.base/java.lang.Thread.run(Thread.java:834)
```
## Environment
OS: Ubuntu 20.04.2 LTS
Browser: Firefox
Browser version: 91.0 (64-bit) Mozilla Friefox for Ubuntu cononical -1.0
Browser Driver version: geckodriver-v.0.29.1-linux64
Language Bindings version: java 11.0.7 2020-04-14 LTS
Selenium Grid version (if applicable): NA