--- a/net/minecraft/stats/ServerStatisticManager.java
+++ b/net/minecraft/stats/ServerStatisticManager.java
@@ -1,3 +1,4 @@
+// mc-dev import
 package net.minecraft.stats;
 
 import com.google.common.collect.Sets;
@@ -53,11 +54,11 @@
     private final File file;
     private final Set<Statistic<?>> dirty = Sets.newHashSet();
 
-    private static <T> Codec<Map<Statistic<?>, Integer>> createTypedStatsCodec(StatisticWrapper<T> statisticwrapper) {
+    private static <T> Codec<Map<Statistic<T>, Integer>> createTypedStatsCodec(StatisticWrapper<T> statisticwrapper) { // CraftBukkit - decompile error
         Codec<T> codec = statisticwrapper.getRegistry().byNameCodec();
 
         Objects.requireNonNull(statisticwrapper);
-        Codec<Statistic<?>> codec1 = codec.flatComapMap(statisticwrapper::get, (statistic) -> {
+        Codec<Statistic<T>> codec1 = codec.flatComapMap(statisticwrapper::get, (statistic) -> { // CraftBukkit - decompile error
             return statistic.getType() == statisticwrapper ? DataResult.success(statistic.getValue()) : DataResult.error(() -> {
                 String s = String.valueOf(statisticwrapper);