diff --git a/org.eclipse.lsp4j.jsonrpc/src/main/java/org/eclipse/lsp4j/jsonrpc/messages/Message.java b/org.eclipse.lsp4j.jsonrpc/src/main/java/org/eclipse/lsp4j/jsonrpc/messages/Message.java
index eb80af930..7e51dc51e 100644
--- a/org.eclipse.lsp4j.jsonrpc/src/main/java/org/eclipse/lsp4j/jsonrpc/messages/Message.java
+++ b/org.eclipse.lsp4j.jsonrpc/src/main/java/org/eclipse/lsp4j/jsonrpc/messages/Message.java
@@ -27,7 +27,11 @@ public abstract class Message {
 
 	private transient MessageJsonHandler jsonHandler;
 
-	public MessageJsonHandler getJsonHandler() {
+	// Note: 'getJsonHandler' is not used as the name of the accessor method
+	// to avoid treating 'jsonHandler' as a general property of the message
+	// by reflective code such as ReflectiveMessageValidator.
+
+	public MessageJsonHandler jsonHandler() {
 		return jsonHandler;
 	}