From 5f1759cc54efaa08067d3f97131a882d9d67fc7a Mon Sep 17 00:00:00 2001
From: Fabio Ramponi <fabioramponi@users.noreply.github.com>
Date: Thu, 16 Oct 2014 13:57:22 +0200
Subject: [PATCH] added Serializable interface to Pair class

In order to serialize an ArrayList of CommonTokens without errors
---
 runtime/Java/src/org/antlr/v4/runtime/misc/Pair.java | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/runtime/Java/src/org/antlr/v4/runtime/misc/Pair.java b/runtime/Java/src/org/antlr/v4/runtime/misc/Pair.java
index aa8eda9b2..2b11efd06 100644
--- a/runtime/Java/src/org/antlr/v4/runtime/misc/Pair.java
+++ b/runtime/Java/src/org/antlr/v4/runtime/misc/Pair.java
@@ -30,7 +30,9 @@
 
 package org.antlr.v4.runtime.misc;
 
-public class Pair<A,B> {
+import java.io.Serializable;
+
+public class Pair<A,B> implements Serializable {
 	public final A a;
 	public final B b;