Example if a JUnit Listener which prints the test name to the console

CustomJunitRunner.java

import org.junit.internal.JUnitSystem;
import org.junit.internal.RealSystem;
import org.junit.internal.TextListener;
import org.junit.runner.Description;
import org.junit.runner.JUnitCore;

import java.util.ArrayList;
import java.util.List;

/**
 * Custom Junit Runner to print also Test classes
 * and executed methods to command prompt.
 */
public class CustomJunitRunner {

  /**
   * Listener which overrides default functionality
   * to print class and method to system out.
   */
  static class ConsoleJunitListener extends TextListener {

    public ConsoleJunitListener(JUnitSystem system) {
      super(system);
    }

    @Override
    public void testStarted(final Description description) {
       System.out.format("Run: %s testing now -> %s \n",
           description.getClassName(),
           description.getMethodName());
    }
  }

  public static void main(String[] args){
    JUnitCore runner = new JUnitCore();
    final JUnitSystem system = new RealSystem();
    runner.addListener(new ConsoleJunitListener(system));
    try {
      List<Class<?>> classes = new ArrayList<>();
      for (String arg : args) {
        classes.add(Class.forName(arg));
      }
      runner.run(classes.toArray(new Class[1]));

    } catch (ClassNotFoundException e) {
      e.printStackTrace();
    }
  }
}