[logging-log4j2] branch main updated: Make `HierarchicalCollections` thread-safe

[vy]

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vy pushed a commit to branch main
in repository https://gitbox.apache.org/repos/asf/logging-log4j2.git


The following commit(s) were added to refs/heads/main by this push:
     new 64c4bd693b Make `HierarchicalCollections` thread-safe
64c4bd693b is described below

commit 64c4bd693b1a1dad42f50572161b41a75933daaf
Author: Volkan Yazıcı <vol...@yazi.ci>
AuthorDate: Thu Mar 23 14:41:14 2023 +0100

    Make `HierarchicalCollections` thread-safe
---
 .../log4j/plugins/internal/util/HierarchicalCollections.java  | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git 
a/log4j-plugins/src/main/java/org/apache/logging/log4j/plugins/internal/util/HierarchicalCollections.java
 
b/log4j-plugins/src/main/java/org/apache/logging/log4j/plugins/internal/util/HierarchicalCollections.java
index ad47c27427..18d0093b88 100644
--- 
a/log4j-plugins/src/main/java/org/apache/logging/log4j/plugins/internal/util/HierarchicalCollections.java
+++ 
b/log4j-plugins/src/main/java/org/apache/logging/log4j/plugins/internal/util/HierarchicalCollections.java
@@ -16,13 +16,8 @@
  */
 package org.apache.logging.log4j.plugins.internal.util;
 
-import java.util.AbstractMap;
-import java.util.AbstractSet;
-import java.util.Iterator;
-import java.util.LinkedHashMap;
-import java.util.Map;
-import java.util.NoSuchElementException;
-import java.util.Set;
+import java.util.*;
+import java.util.concurrent.ConcurrentHashMap;
 
 class HierarchicalCollections {
     static <K, V> HierarchicalMap<K, V> newRootMap() {
@@ -30,7 +25,7 @@ class HierarchicalCollections {
     }
 
     private static class RootMap<K, V> extends AbstractMap<K, V> implements 
HierarchicalMap<K, V> {
-        private final Map<K, V> map = new LinkedHashMap<>();
+        private final Map<K, V> map = new ConcurrentHashMap<>();
 
         @Override
         public Set<Entry<K, V>> entrySet() {