eclipse-jetty #465700 test case

AppTest.java

package foo.test;

import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.server.handler.ResourceHandler;
import org.eclipse.jetty.servlet.ServletContextHandler;
import org.eclipse.jetty.util.resource.Resource;

/** Steps to reproduce the issue:
 *
 * 1. Run the application
 * 2. Access http://localhost:8000/test
 *
 * Expected result: it must render the index.html file
 * Actual result: ResourceHandler throws a NPE.
 */
public class AppTest {

  private static final String TEST_CONTEXT = "/test";

  public static void main(String[] args) throws Exception {
    AppTest app = new AppTest();
    app.init(8000);
  }

  private Server server;

  public void init(int port) {
    server = new Server(port);

    ServletContextHandler handler = new ServletContextHandler(server, TEST_CONTEXT, false, false);
    ResourceHandler resourceHandler = new ResourceHandler();
    resourceHandler.setBaseResource(Resource.newClassPathResource("/public"));
    handler.setWelcomeFiles(new String[] { "index.html" });
    handler.setHandler(resourceHandler);

    server.setHandler(handler);

    try {
      server.start();
      server.join();
    } catch (Exception cause) {
      throw new RuntimeException(cause);
    }
  }
}