From 7d83a3aa9ce1da8b7515f042be52c7bf97140ffa Mon Sep 17 00:00:00 2001
From: Marco Hunsicker <antlr4@hunsicker.de>
Date: Thu, 17 Nov 2016 23:29:27 +0100
Subject: [PATCH] More cleanup; use save Collection comparison

---
 tool/src/org/antlr/v4/misc/Graph.java | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tool/src/org/antlr/v4/misc/Graph.java b/tool/src/org/antlr/v4/misc/Graph.java
index 90e4b9cd8..a67697874 100644
--- a/tool/src/org/antlr/v4/misc/Graph.java
+++ b/tool/src/org/antlr/v4/misc/Graph.java
@@ -46,7 +46,9 @@ public class Graph<T> {
 
 	public static class Node<T> {
 		public T payload;
-		public List<Node<T>> edges = Collections.emptyList(); // points at which nodes?
+
+		@SuppressWarnings("unchecked")
+		public List<Node<T>> edges = Collections.EMPTY_LIST; // points at which nodes?
 
 		public Node(T payload) { this.payload = payload; }