From 50b9fc9238feaa381eafe5942136e7b1fe8b5d27 Mon Sep 17 00:00:00 2001
From: David Vierra <codewarrior@hawaii.rr.com>
Date: Sat, 31 Dec 2016 03:32:11 -1000
Subject: [PATCH] Fix #720 - Concurrency error in
 GT_LanguageManager.addStringLocalization

---
 src/main/java/gregtech/api/util/GT_LanguageManager.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main/java/gregtech/api/util/GT_LanguageManager.java b/src/main/java/gregtech/api/util/GT_LanguageManager.java
index 36b543b1..561d47ed 100644
--- a/src/main/java/gregtech/api/util/GT_LanguageManager.java
+++ b/src/main/java/gregtech/api/util/GT_LanguageManager.java
@@ -22,7 +22,7 @@ public class GT_LanguageManager {
         return addStringLocalization(aKey, aEnglish, true);
     }
 
-    public static String addStringLocalization(String aKey, String aEnglish, boolean aWriteIntoLangFile) {
+    public static synchronized String addStringLocalization(String aKey, String aEnglish, boolean aWriteIntoLangFile) {
         if (aKey == null) return E;
         if (aWriteIntoLangFile){ aEnglish = writeToLangFile(aKey, aEnglish);
         if(!LANGMAP.containsKey(aKey)){