[logging-log4j2] 02/02: Add missing protected instance variable for BC.

[gg...@apache.org]

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ggregory pushed a commit to branch release-2.x
in repository https://gitbox.apache.org/repos/asf/logging-log4j2.git

commit 17618b47f5d54be8352545c2d4d2840ed8d1b3fd
Author: Gary Gregory <ga...@gmail.com>
AuthorDate: Thu Jan 13 16:09:00 2022 -0500

    Add missing protected instance variable for BC.
---
 .../main/java/org/apache/log4j/helpers/AppenderAttachableImpl.java    | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/log4j-1.2-api/src/main/java/org/apache/log4j/helpers/AppenderAttachableImpl.java b/log4j-1.2-api/src/main/java/org/apache/log4j/helpers/AppenderAttachableImpl.java
index a4bf87a..3b72848 100644
--- a/log4j-1.2-api/src/main/java/org/apache/log4j/helpers/AppenderAttachableImpl.java
+++ b/log4j-1.2-api/src/main/java/org/apache/log4j/helpers/AppenderAttachableImpl.java
@@ -19,6 +19,7 @@ package org.apache.log4j.helpers;
 import java.util.Collections;
 import java.util.Enumeration;
 import java.util.Objects;
+import java.util.Vector;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.ConcurrentMap;
 
@@ -33,6 +34,9 @@ public class AppenderAttachableImpl implements AppenderAttachable {
 
     private final ConcurrentMap<String, Appender> appenders = new ConcurrentHashMap<>();
 
+    /** Array of appenders. TODO */
+    protected Vector appenderList;
+
     @Override
     public void addAppender(final Appender newAppender) {
         if (newAppender != null) {