| --- |
| id: client-java-4.0.9 |
| title: Client Java 4.0.9 |
| sidebar_label: Client Java 4.0.9 |
| --- |
| |
| - [fix][client] ControlledClusterFailover avoid unnecessary reconnection. ([#25178](https://github.com/apache/pulsar/pull/25178)) |
| - [fix][client] Fix AutoProduceBytesSchema.clone() method ([#25015](https://github.com/apache/pulsar/pull/25015)) |
| - [fix][client] Fix double recycling of the message in isValidConsumerEpoch method ([#25008](https://github.com/apache/pulsar/pull/25008)) |
| - [fix][client] Fix invalid parameter type passed to Map.get in TopicsImpl.getListAsync method ([#25069](https://github.com/apache/pulsar/pull/25069)) |
| - [fix][client] Fix producer synchronous retry handling in failPendingMessages method ([#25207](https://github.com/apache/pulsar/pull/25207)) |
| - [fix][client] Fix race condition between isDuplicate() and flushAsync() method in PersistentAcknowledgmentsGroupingTracker due to incorrect use Netty Recycler ([#25208](https://github.com/apache/pulsar/pull/25208)) |
| - [fix][client] Fix thread-safety of AutoProduceBytesSchema ([#25014](https://github.com/apache/pulsar/pull/25014)) |
| - [fix][client] PIP-84: Skip processing a message in the message listener if the consumer epoch is no longer valid ([#25007](https://github.com/apache/pulsar/pull/25007)) |
| - [fix][client] Send all chunkMessageIds to broker for redelivery ([#25229](https://github.com/apache/pulsar/pull/25229)) |
| - [fix][client] Skip processing messages in the listener when the consumer has been closed ([#25006](https://github.com/apache/pulsar/pull/25006)) |
| - [fix][client]Producer stuck or geo-replication stuck due to wrong value of message.numMessagesInBatch ([#25106](https://github.com/apache/pulsar/pull/25106)) |
| - [improve][client] Add null checks for MessageAcknowledger methods to prevent NullPointerException ([#25036](https://github.com/apache/pulsar/pull/25036)) |
| - [improve][client] Make authorization server metadata path configurable in AuthenticationOAuth2 ([#25052](https://github.com/apache/pulsar/pull/25052)) |
| - [improve][client] Test no exception could be thrown for invalid epoch in message ([#25013](https://github.com/apache/pulsar/pull/25013)) |
| - [improve][client]Reduce unnecessary getPartitionedTopicMetadata requests when using retry and DLQ topics. ([#25172](https://github.com/apache/pulsar/pull/25172)) |
| - [feat][client] oauth2 trustcerts file and timeouts ([#24944](https://github.com/apache/pulsar/pull/24944)) |
| - [improve] Upgrade Netty to 4.1.131.Final ([#25232](https://github.com/apache/pulsar/pull/25232)) |
| - [fix][sec] Eliminate commons-collections dependency ([#25024](https://github.com/apache/pulsar/pull/25024)) |
| - [improve] Upgrade Apache Commons library versions ([#24983](https://github.com/apache/pulsar/pull/24983)) |
| - [fix] Handle TLS close_notify to avoid SslClosedEngineException: SSLEngine closed already ([#24986](https://github.com/apache/pulsar/pull/24986)) |
