Upgrade to Jackson 2.9.2

build.gradle

@@ -45,7 +45,7 @@ configure(allprojects) { project ->
 	ext.freemarkerVersion    = "2.3.26-incubating"
 	ext.groovyVersion        = "2.4.12"
 	ext.hsqldbVersion        = "2.4.0"
-	ext.jackson2Version      = "2.9.1"
+	ext.jackson2Version      = "2.9.2"
 	ext.jettyVersion         = "9.4.7.v20170914"
 	ext.junitJupiterVersion  = "5.0.1"
 	ext.junitPlatformVersion = "1.0.1"

spring-websocket/src/main/java/org/springframework/web/socket/sockjs/frame/Jackson2SockJsMessageCodec.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 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.
@@ -71,6 +71,7 @@ public class Jackson2SockJsMessageCodec extends AbstractSockJsMessageCodec {
 	}
 
 	@Override
+	@SuppressWarnings("deprecation")
 	protected char[] applyJsonQuoting(String content) {
 		return JsonStringEncoder.getInstance().quoteAsString(content);
 	}