[kafka] branch 3.2 updated: KAFKA-13794: Follow up to fix producer batch comparator (#12006)

[sh...@apache.org]

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showuon pushed a commit to branch 3.2
in repository https://gitbox.apache.org/repos/asf/kafka.git


The following commit(s) were added to refs/heads/3.2 by this push:
     new 1483a86591 KAFKA-13794: Follow up to fix producer batch comparator (#12006)
1483a86591 is described below

commit 1483a86591e9143f0f2ffe097e068e5a5e493092
Author: Xiaoyue Xue <28...@qq.com>
AuthorDate: Sat Apr 9 10:58:16 2022 +0800

    KAFKA-13794: Follow up to fix producer batch comparator (#12006)
    
    In comparator, objects that are not equal need to have a stable order otherwise, binary search may not find the objects. Improve the producer batch comparator
    
    Reviewers: Luke Chen <sh...@gmail.com>
---
 .../org/apache/kafka/clients/producer/internals/TransactionManager.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/clients/src/main/java/org/apache/kafka/clients/producer/internals/TransactionManager.java b/clients/src/main/java/org/apache/kafka/clients/producer/internals/TransactionManager.java
index aef6cfda8e..f4afc5369a 100644
--- a/clients/src/main/java/org/apache/kafka/clients/producer/internals/TransactionManager.java
+++ b/clients/src/main/java/org/apache/kafka/clients/producer/internals/TransactionManager.java
@@ -187,7 +187,7 @@ public class TransactionManager {
         private static final Comparator<ProducerBatch> PRODUCER_BATCH_COMPARATOR = (b1, b2) -> {
             if (b1.baseSequence() < b2.baseSequence()) return -1;
             else if (b1.baseSequence() > b2.baseSequence()) return 1;
-            else return b1.equals(b2) ? 0 : 1;
+            else return Integer.compare(b1.hashCode(), b2.hashCode());
         };
 
         TopicPartitionEntry() {