Upgrade to Animal Sniffer 1.16

build.gradle

@@ -71,7 +71,7 @@ configure(allprojects) { project ->
 	ext.romeVersion          = "1.7.4"
 	ext.slf4jVersion         = "1.7.21"
 	ext.snakeyamlVersion     = "1.17"
-	ext.snifferVersion       = "1.15"
+	ext.snifferVersion       = "1.16"
 	ext.testngVersion        = "6.9.10"
 	ext.tiles2Version        = "2.2.2"
 	ext.tiles3Version        = "3.0.7"

spring-context/src/main/java/org/springframework/format/datetime/standard/DateTimeFormatterFactoryBean.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2013 the original author or authors.
+ * Copyright 2002-2017 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,6 +20,7 @@ import java.time.format.DateTimeFormatter;
 
 import org.springframework.beans.factory.FactoryBean;
 import org.springframework.beans.factory.InitializingBean;
+import org.springframework.lang.UsesJava8;
 
 /**
  * {@link FactoryBean} that creates a JSR-310 {@link java.time.format.DateTimeFormatter}.
@@ -33,6 +34,7 @@ import org.springframework.beans.factory.InitializingBean;
  * @see #setTimeStyle
  * @see DateTimeFormatterFactory
  */
+@UsesJava8
 public class DateTimeFormatterFactoryBean extends DateTimeFormatterFactory
 		implements FactoryBean<DateTimeFormatter>, InitializingBean {