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The following commit(s) were added to refs/heads/master by this push:
     new cea5c931b43 [fix][broker]Fix NonPersistentDispatcherMultipleConsumers 
ArrayIndexOutOfBoundsException (#21856)
cea5c931b43 is described below

commit cea5c931b43cbc5181aaa79dfee09d53cc1389d1
Author: Jiwei Guo <[email protected]>
AuthorDate: Mon Jan 8 09:19:41 2024 +0800

    [fix][broker]Fix NonPersistentDispatcherMultipleConsumers 
ArrayIndexOutOfBoundsException (#21856)
---
 .../service/nonpersistent/NonPersistentDispatcherMultipleConsumers.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git 
a/pulsar-broker/src/main/java/org/apache/pulsar/broker/service/nonpersistent/NonPersistentDispatcherMultipleConsumers.java
 
b/pulsar-broker/src/main/java/org/apache/pulsar/broker/service/nonpersistent/NonPersistentDispatcherMultipleConsumers.java
index 29bca715741..399a524a197 100644
--- 
a/pulsar-broker/src/main/java/org/apache/pulsar/broker/service/nonpersistent/NonPersistentDispatcherMultipleConsumers.java
+++ 
b/pulsar-broker/src/main/java/org/apache/pulsar/broker/service/nonpersistent/NonPersistentDispatcherMultipleConsumers.java
@@ -191,7 +191,7 @@ public class NonPersistentDispatcherMultipleConsumers 
extends AbstractDispatcher
     }
 
     @Override
-    public void sendMessages(List<Entry> entries) {
+    public synchronized void sendMessages(List<Entry> entries) {
         Consumer consumer = TOTAL_AVAILABLE_PERMITS_UPDATER.get(this) > 0 ? 
getNextConsumer() : null;
         if (consumer != null) {
             SendMessageInfo sendMessageInfo = SendMessageInfo.getThreadLocal();

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