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Use a ConcurrentHashMap for enum mappings for BlockData #10161

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merged 1 commit into from
Jan 12, 2024
Merged

Use a ConcurrentHashMap for enum mappings for BlockData #10161

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11 changes: 10 additions & 1 deletion patches/server/0454-Cache-block-data-strings.patch
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Original file line number Diff line number Diff line change
Expand Up @@ -17,9 +17,18 @@ index a82f7dd2cbc2f6311b810f117f0970a47db85818..2616d771a8a95dac4440b74933c8aa7b

if (this.isSameThread()) {
diff --git a/src/main/java/org/bukkit/craftbukkit/block/data/CraftBlockData.java b/src/main/java/org/bukkit/craftbukkit/block/data/CraftBlockData.java
index cf379f7da8d8e6db0d74f1ca0e4b42e017a8191e..c1506afacb6a73ef4a4692c0ae0722b240f01606 100644
index cf379f7da8d8e6db0d74f1ca0e4b42e017a8191e..cab13044a3c827256967632a1769f4aec3b11839 100644
--- a/src/main/java/org/bukkit/craftbukkit/block/data/CraftBlockData.java
+++ b/src/main/java/org/bukkit/craftbukkit/block/data/CraftBlockData.java
@@ -153,7 +153,7 @@ public class CraftBlockData implements BlockData {
return exactMatch;
}

- private static final Map<Class<? extends Enum<?>>, Enum<?>[]> ENUM_VALUES = new HashMap<>();
+ private static final Map<Class<? extends Enum<?>>, Enum<?>[]> ENUM_VALUES = new java.util.concurrent.ConcurrentHashMap<>(); // Paper - make thread safe

/**
* Convert an NMS Enum (usually a BlockStateEnum) to its appropriate Bukkit
@@ -536,9 +536,39 @@ public class CraftBlockData implements BlockData {
Preconditions.checkState(CraftBlockData.MAP.put(nms, bukkit) == null, "Duplicate mapping %s->%s", nms, bukkit);
}
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