How to run Cucumber TestNG tests in DeviceFarm

GenericRunner.java

//From https://forums.aws.amazon.com/thread.jspa?messageID=798024#798024
//Create a GenericRunner class as below:

import org.testng.annotations.AfterClass;
import org.testng.annotations.BeforeClass;
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;

import cucumber.api.testng.CucumberFeatureWrapper;
import cucumber.api.testng.TestNGCucumberRunner;
import cucumber.runtime.model.CucumberFeature;

public class GenericRunner {

	private TestNGCucumberRunner testNGCucumberRunner;

	public GenericRunner(Class c) {
		try {
			setUpClass(c);
		} catch (Exception e) {
			System.out.println(e.getMessage());
		}
	}

	private void setUpClass(Class c) throws Exception {
		testNGCucumberRunner = new TestNGCucumberRunner(c);
	}

	public void feature() {
		Object features = features();
		for (int i = 0; i < features.length; i++) {
			for (int j = 0; j < features.length; j++) {
				Object o = features[j];
				if (o instanceof CucumberFeatureWrapper) {
					CucumberFeatureWrapper wrapper = (CucumberFeatureWrapper) o;
					testNGCucumberRunner.runCucumber(wrapper.getCucumberFeature());
				}
			}
		}
		try {
			tearDownClass();
		} catch (Exception e) {
			System.out.println(e.getMessage());
		}
	}

	/**
	 * @return returns two dimensional array of {@link CucumberFeatureWrapper} objects.
	 */

	private Object features() {
		return testNGCucumberRunner.provideFeatures();
	}

	private void tearDownClass() throws Exception {
		testNGCucumberRunner.finish();
	}
}

LoginCucumberTest.java

//And your TestNG Test Class:

import org.testng.annotations.AfterClass;
import org.testng.annotations.BeforeClass;
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;

import cucumber.api.CucumberOptions;
import cucumber.api.testng.AbstractTestNGCucumberTests;
import cucumber.api.testng.CucumberFeatureWrapper;
import cucumber.api.testng.TestNGCucumberRunner;

@CucumberOptions(
	features = "classpath:features/login.feature",
	glue = "com.sample.glues",
	plugin = {
		"html:target/cucumber-html-report",
		"json:target/cucumber-json-report.json"
	}
)
public class LoginCucumberTest {

	@Test(groups = "cucumber", description = "Runs Cucumber Feature")
	public void feature() {
		//testNGCucumberRunner.runCucumber(cucumberFeature.getCucumberFeature());
		GenericRunner runner = new GenericRunner(this.getClass());
		runner.feature();
	}
}