From 90f96a02992b64ba330c6e6b62e6a8fc3d4d8120 Mon Sep 17 00:00:00 2001
From: u8675309 <58795251+u8675309@users.noreply.github.com>
Date: Mon, 12 Jun 2023 12:10:54 -0600
Subject: [PATCH] [AMQ-9283] Fix memory leak with STOMP unsubscribe

---
 .../org/apache/activemq/transport/stomp/ProtocolConverter.java   | 1 +
 1 file changed, 1 insertion(+)

diff --git a/activemq-stomp/src/main/java/org/apache/activemq/transport/stomp/ProtocolConverter.java b/activemq-stomp/src/main/java/org/apache/activemq/transport/stomp/ProtocolConverter.java
index 1f6f9069d5..9981452e63 100644
--- a/activemq-stomp/src/main/java/org/apache/activemq/transport/stomp/ProtocolConverter.java
+++ b/activemq-stomp/src/main/java/org/apache/activemq/transport/stomp/ProtocolConverter.java
@@ -718,6 +718,7 @@ public class ProtocolConverter {
         if (subscriptionId != null) {
             StompSubscription sub = this.subscriptions.remove(subscriptionId);
             if (sub != null) {
+                subscriptionsByConsumerId.remove(sub.getConsumerInfo().getConsumerId());
                 sendToActiveMQ(sub.getConsumerInfo().createRemoveCommand(), createResponseHandler(command));
                 return;
             }