Tidy up code formatting and address some compiler warnings

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/condition/ConditionMessage.java

@@ -301,9 +301,8 @@ public final class ConditionMessage {
 			if (StringUtils.isEmpty(reason)) {
 				return new ConditionMessage(ConditionMessage.this, this.condition);
 			}
-			return new ConditionMessage(ConditionMessage.this,
-					this.condition + (StringUtils.isEmpty(this.condition) ? "" : " ")
-							+ reason);
+			return new ConditionMessage(ConditionMessage.this, this.condition
+					+ (StringUtils.isEmpty(this.condition) ? "" : " ") + reason);
 		}
 
 	}

spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/amqp/RabbitAutoConfigurationTests.java

@@ -295,7 +295,7 @@ public class RabbitAutoConfigurationTests {
 	@Test
 	public void testRabbitListenerContainerFactoryWithCustomSettings() {
 		load(new Class<?>[] { MessageConvertersConfiguration.class,
-						MessageRecoverersConfiguration.class },
+				MessageRecoverersConfiguration.class },
 				"spring.rabbitmq.listener.retry.enabled:true",
 				"spring.rabbitmq.listener.retry.maxAttempts:4",
 				"spring.rabbitmq.listener.retry.initialInterval:2000",
@@ -331,11 +331,11 @@ public class RabbitAutoConfigurationTests {
 		dfa = new DirectFieldAccessor(adviceChain[0]);
 		MessageRecoverer messageRecoverer = this.context.getBean("myMessageRecoverer",
 				MessageRecoverer.class);
-		MethodInvocationRecoverer mir = (MethodInvocationRecoverer) dfa
+		MethodInvocationRecoverer<?> mir = (MethodInvocationRecoverer<?>) dfa
 				.getPropertyValue("recoverer");
 		Message message = mock(Message.class);
 		Exception ex = new Exception("test");
-		mir.recover(new Object[]{"foo", message}, ex);
+		mir.recover(new Object[] { "foo", message }, ex);
 		verify(messageRecoverer).recover(message, ex);
 		RetryTemplate retryTemplate = (RetryTemplate) dfa
 				.getPropertyValue("retryOperations");
@@ -415,8 +415,7 @@ public class RabbitAutoConfigurationTests {
 		load(new Class<?>[] { config }, environment);
 	}
 
-	private void load(Class<?>[] configs,
-			String... environment) {
+	private void load(Class<?>[] configs, String... environment) {
 		AnnotationConfigApplicationContext applicationContext = new AnnotationConfigApplicationContext();
 		applicationContext.register(configs);
 		applicationContext.register(RabbitAutoConfiguration.class);