From fc606ff5ffc74922bdb5868746e100f143ae74fd Mon Sep 17 00:00:00 2001
From: dordsor21 <dordsor21@gmail.com>
Date: Sun, 4 Oct 2020 18:34:15 +0100
Subject: [PATCH] use concurrent hashmap for thread processor cache

---
 .../beta/implementation/processors/MultiBatchProcessor.java   | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/worldedit-core/src/main/java/com/boydti/fawe/beta/implementation/processors/MultiBatchProcessor.java b/worldedit-core/src/main/java/com/boydti/fawe/beta/implementation/processors/MultiBatchProcessor.java
index f93fc9865..2e23cf8a6 100644
--- a/worldedit-core/src/main/java/com/boydti/fawe/beta/implementation/processors/MultiBatchProcessor.java
+++ b/worldedit-core/src/main/java/com/boydti/fawe/beta/implementation/processors/MultiBatchProcessor.java
@@ -12,9 +12,9 @@ import com.sk89q.worldedit.extent.Extent;
 
 import java.util.ArrayList;
 import java.util.Arrays;
-import java.util.HashMap;
 import java.util.List;
 import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.Future;
 import java.util.Map;
 import java.util.function.Supplier;
@@ -22,7 +22,7 @@ import java.util.function.Supplier;
 public class MultiBatchProcessor implements IBatchProcessor {
     private IBatchProcessor[] processors;
     private final LoadingCache<Class<?>, Map<Long, Filter>> classToThreadIdToFilter =
-        FaweCache.IMP.createCache((Supplier<Map<Long, Filter>>) HashMap::new);
+        FaweCache.IMP.createCache((Supplier<Map<Long, Filter>>) ConcurrentHashMap::new);
 
     public MultiBatchProcessor(IBatchProcessor... processors) {
         this.processors = processors;