title: Extent report is not working in Cucumber 4.7.1
body: <p>When I tried with Cucumber latest version 4.7.1 <em>i.e.,'io.cucumber'</em>,
  with Extent report 3.0 the report is not generated. I have tried with different versions in extent report but still the output is generated properly.</p>
  
  <p>I have tried with different combo versions between Cucumber and Extent Report but still no output. Someone could shed the light over here to bring up the output.    </p>
  
  <p><strong>Code:</strong></p>
  
  <pre><code>/**
   * @Author: PriyadarsiniMuthuvel
   * @Created date: 19-08-2019
   * @Project Description: CucumberGradleProject
   **/
  
  
  import io.cucumber.junit.CucumberOptions;
  import io.cucumber.junit.Cucumber;
  import org.junit.AfterClass;
  import org.junit.runner.RunWith;
  import managers.FileReaderManager;
  
  import java.io.File;
  
  @RunWith(Cucumber.class)
  @CucumberOptions(
          features = "src/test/resources/SmokeSuite",
          glue= {"stepDef"},
        //  plugin = { "pretty","html:target/cucumber-reports"},
   //  plugin = { "com.cucumber.listener.ExtentCucumberFormatter:target/cucumber-reports/report.html"},
      // plugin = { "com.vimalselvam.cucumber.listener.ExtentCucumberFormatter:target/cucumber-reports/report.html"},
        plugin = { "com.aventstack.extentreportscucumber.adapter.ExtentCucumberAdapter:target/cucumber-reports/report.html"},
          monochrome = true
  )
  public class testrunner {
  
      @AfterClass
      public static void writeExtentReport() {
  
          Reporter.loadXMLConfig(new File(FileReaderManager.getInstance().getConfigReader().getReportConfigPath()));
          Reporter.setSystemInfo("User Name", System.getProperty("user.name"));
          Reporter.setSystemInfo("Time Zone", System.getProperty("user.timezone"));
          Reporter.setSystemInfo("Machine", System.getProperty ("os.name"));
          Reporter.setSystemInfo("Java Version", System.getProperty ("java.version"));
      }
  }
  </code></pre>
  
  <p><strong>Console:</strong></p>
  
  <blockquote>
    <p>java.lang.NoClassDefFoundError: gherkin/formatter/Reporter    at
    java.lang.ClassLoader.defineClass1(Native Method)     at
    java.lang.ClassLoader.defineClass(ClassLoader.java:763)   at
    java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
      at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)     at
    java.net.URLClassLoader.access$100(URLClassLoader.java:73)    at
    java.net.URLClassLoader$1.run(URLClassLoader.java:368)    at
    java.net.URLClassLoader$1.run(URLClassLoader.java:362)    at
    java.security.AccessController.doPrivileged(Native Method)    at
    java.net.URLClassLoader.findClass(URLClassLoader.java:361)    at
    java.lang.ClassLoader.loadClass(ClassLoader.java:424)     at
    sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335)     at
    java.lang.ClassLoader.loadClass(ClassLoader.java:357)     at
    com.vimalselvam.cucumber.listener.Reporter.getCurrentScenario(Reporter.java:166)
      at
    com.vimalselvam.cucumber.listener.Reporter.assignAuthor(Reporter.java:158)
      at stepDef.Hooks.BeforeSteps(Hooks.java:39)     at
    sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)   at
    sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
      at
    sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:498)     at
    cucumber.runtime.Utils$1.call(Utils.java:26)  at
    cucumber.runtime.Timeout.timeout(Timeout.java:16)     at
    cucumber.runtime.Utils.invoke(Utils.java:20)  at
    cucumber.runtime.java.JavaHookDefinition.execute(JavaHookDefinition.java:65)
      at
    cucumber.runner.HookDefinitionMatch.runStep(HookDefinitionMatch.java:16)
      at cucumber.runner.TestStep.executeStep(TestStep.java:65)   at
    cucumber.runner.TestStep.run(TestStep.java:50)    at
    cucumber.runner.TestCase.run(TestCase.java:42)    at
    cucumber.runner.Runner.runPickle(Runner.java:50)  at
    io.cucumber.junit.PickleRunners$NoStepDescriptions.run(PickleRunners.java:146)
      at io.cucumber.junit.FeatureRunner.runChild(FeatureRunner.java:68)
      at io.cucumber.junit.FeatureRunner.runChild(FeatureRunner.java:23)
      at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)  at
    org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)   at
    org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)     at
    org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)   at
    org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)  at
    org.junit.runners.ParentRunner.run(ParentRunner.java:363)     at
    io.cucumber.junit.Cucumber.runChild(Cucumber.java:142)    at
    io.cucumber.junit.Cucumber.runChild(Cucumber.java:65)     at
    org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)   at
    org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)   at
    org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)     at
    org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)   at
    org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)  at
    io.cucumber.junit.Cucumber$RunCucumber.evaluate(Cucumber.java:172)    at
    org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
      at org.junit.runners.ParentRunner.run(ParentRunner.java:363)    at
    org.junit.runner.JUnitCore.run(JUnitCore.java:137)    at
    com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
      at
    com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
      at
    com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
      at
    com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
    Caused by: java.lang.ClassNotFoundException:
    gherkin.formatter.Reporter    at
    java.net.URLClassLoader.findClass(URLClassLoader.java:381)    at
    java.lang.ClassLoader.loadClass(ClassLoader.java:424)     at
    sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335)     at
    java.lang.ClassLoader.loadClass(ClassLoader.java:357)     ... 52 more</p>
  </blockquote>