diff --git a/spring-web/src/main/java/org/springframework/http/codec/json/Jackson2Tokenizer.java b/spring-web/src/main/java/org/springframework/http/codec/json/Jackson2Tokenizer.java
index 9f60c4c8d8..8af3dffa18 100644
--- a/spring-web/src/main/java/org/springframework/http/codec/json/Jackson2Tokenizer.java
+++ b/spring-web/src/main/java/org/springframework/http/codec/json/Jackson2Tokenizer.java
@@ -55,6 +55,7 @@ final class Jackson2Tokenizer {
 	private int arrayDepth;
 
 	// TODO: change to ByteBufferFeeder when supported by Jackson
+	// See https://github.com/FasterXML/jackson-core/issues/478
 	private final ByteArrayFeeder inputFeeder;