Automatically disable DevTools when running a Cucumber test

Closes gh-6412

spring-boot-devtools/src/main/java/org/springframework/boot/devtools/restart/DefaultRestartInitializer.java

@@ -28,6 +28,7 @@ import java.util.Set;
  * exploded) or when running from a test.
  *
  * @author Phillip Webb
+ * @author Andy Wilkinson
  * @since 1.3.0
  */
 public class DefaultRestartInitializer implements RestartInitializer {
@@ -38,6 +39,7 @@ public class DefaultRestartInitializer implements RestartInitializer {
 		Set<String> skipped = new LinkedHashSet<String>();
 		skipped.add("org.junit.runners.");
 		skipped.add("org.springframework.boot.test.");
+		skipped.add("cucumber.runtime.");
 		SKIPPED_STACK_ELEMENTS = Collections.unmodifiableSet(skipped);
 	}
 

spring-boot-devtools/src/test/java/org/springframework/boot/devtools/restart/DefaultRestartInitializerTests.java

@@ -27,6 +27,7 @@ import static org.hamcrest.Matchers.nullValue;
  * Tests for {@link DefaultRestartInitializer}.
  *
  * @author Phillip Webb
+ * @author Andy Wilkinson
  */
 public class DefaultRestartInitializerTests {
 
@@ -80,6 +81,11 @@ public class DefaultRestartInitializerTests {
 		testSkipStack("org.springframework.boot.test.Something", true);
 	}
 
+	@Test
+	public void skipsDueToCucumber() throws Exception {
+		testSkipStack("cucumber.runtime.Runtime.run", true);
+	}
+
 	private void testSkipStack(String className, boolean expected) {
 		MockRestartInitializer initializer = new MockRestartInitializer(true);
 		StackTraceElement element = new StackTraceElement(className, "someMethod",