From 5cb95a1756e3de3803e3e98a890f010f01dff02e Mon Sep 17 00:00:00 2001
From: Zach Brown <zach.brown@destroystokyo.com>
Date: Tue, 20 Dec 2016 23:09:21 -0600
Subject: [PATCH] Add option to remove invalid statistics


diff --git a/src/main/java/com/destroystokyo/paper/PaperConfig.java b/src/main/java/com/destroystokyo/paper/PaperConfig.java
index dcb971a..7e0f670 100644
--- a/src/main/java/com/destroystokyo/paper/PaperConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperConfig.java
@@ -246,4 +246,13 @@ public class PaperConfig {
     private static void playerAutoSaveRate() {
         playerAutoSaveRate = getInt("settings.player-auto-save-rate", -1);
     }
+
+    public static boolean removeInvalidStatistics = false;
+    private static void removeInvalidStatistics() {
+        if (version < 12) {
+            boolean oldValue = getBoolean("remove-invalid-statistics", false);
+            set("settings.remove-invalid-statistics", oldValue);
+        }
+        removeInvalidStatistics = getBoolean("settings.remove-invalid-statistics", false);
+    }
 }
diff --git a/src/main/java/net/minecraft/server/ServerStatisticManager.java b/src/main/java/net/minecraft/server/ServerStatisticManager.java
index 99466db..d1bee02 100644
--- a/src/main/java/net/minecraft/server/ServerStatisticManager.java
+++ b/src/main/java/net/minecraft/server/ServerStatisticManager.java
@@ -104,6 +104,7 @@ public class ServerStatisticManager extends StatisticManager {
             JsonObject jsonobject = jsonelement.getAsJsonObject();
             HashMap hashmap = Maps.newHashMap();
             Iterator iterator = jsonobject.entrySet().iterator();
+            java.util.List<String> invalidStats = com.google.common.collect.Lists.newArrayList(); // Paper
 
             while (iterator.hasNext()) {
                 Entry entry = (Entry) iterator.next();
@@ -137,9 +138,17 @@ public class ServerStatisticManager extends StatisticManager {
                     hashmap.put(statistic, statisticwrapper);
                 } else {
                     ServerStatisticManager.b.warn("Invalid statistic in {}: Don\'t know what {} is", new Object[] { this.d, entry.getKey()});
+                    if (com.destroystokyo.paper.PaperConfig.removeInvalidStatistics) invalidStats.add((String) entry.getKey()); // Paper
                 }
             }
 
+            // Paper start - Remove invalid statistics
+            for (String invalid : invalidStats) {
+                jsonobject.remove(invalid);
+                ServerStatisticManager.b.info("Removing invalid statistic: " + invalid);
+            }
+            // Paper end
+
             return hashmap;
         }
     }
-- 
2.9.3