diff --git a/binders/kafka-binder/spring-cloud-stream-binder-kafka/pom.xml b/binders/kafka-binder/spring-cloud-stream-binder-kafka/pom.xml
index 040a9f28a..7302a3c86 100644
--- a/binders/kafka-binder/spring-cloud-stream-binder-kafka/pom.xml
+++ b/binders/kafka-binder/spring-cloud-stream-binder-kafka/pom.xml
@@ -32,6 +32,11 @@
org.springframework.cloud
spring-cloud-stream
+
+ org.springframework.cloud
+ spring-cloud-stream-test-binder
+ test
+
org.springframework.boot
spring-boot-autoconfigure
diff --git a/binders/kafka-binder/spring-cloud-stream-binder-kafka/src/main/java/org/springframework/cloud/stream/binder/kafka/config/DefaultMessageConverterHelper.java b/binders/kafka-binder/spring-cloud-stream-binder-kafka/src/main/java/org/springframework/cloud/stream/binder/kafka/config/DefaultMessageConverterHelper.java
new file mode 100644
index 000000000..631a13ac6
--- /dev/null
+++ b/binders/kafka-binder/spring-cloud-stream-binder-kafka/src/main/java/org/springframework/cloud/stream/binder/kafka/config/DefaultMessageConverterHelper.java
@@ -0,0 +1,41 @@
+/*
+ * Copyright 2019-2024 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.cloud.stream.binder.kafka.config;
+
+import java.util.concurrent.atomic.AtomicInteger;
+
+import org.springframework.cloud.function.context.config.MessageConverterHelper;
+import org.springframework.messaging.Message;
+
+/**
+ * @author Oleg Zhurakousky
+ */
+public class DefaultMessageConverterHelper implements MessageConverterHelper {
+
+ @Override
+ public boolean shouldFailIfCantConvert(Message> message) {
+ return false;
+ }
+
+ public void postProcessBatchMessageOnFailure(Message> message, int index) {
+ AtomicInteger deliveryAttempt = (AtomicInteger) message.getHeaders().get("deliveryAttempt");
+// if (message.getHeaders().containsKey("amqp_batchedHeaders") && deliveryAttempt != null && deliveryAttempt.get() == 1) {
+// ArrayList> list = (ArrayList>) message.getHeaders().get("amqp_batchedHeaders");
+// list.remove(index);
+// }
+ }
+}
diff --git a/binders/kafka-binder/spring-cloud-stream-binder-kafka/src/test/java/org/springframework/cloud/stream/binder/kafka/FunctionBatchingConversionTests.java b/binders/kafka-binder/spring-cloud-stream-binder-kafka/src/test/java/org/springframework/cloud/stream/binder/kafka/FunctionBatchingConversionTests.java
new file mode 100644
index 000000000..a158bb8a0
--- /dev/null
+++ b/binders/kafka-binder/spring-cloud-stream-binder-kafka/src/test/java/org/springframework/cloud/stream/binder/kafka/FunctionBatchingConversionTests.java
@@ -0,0 +1,180 @@
+/*
+ * Copyright 2019-2024 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.cloud.stream.binder.kafka;
+
+import java.nio.charset.StandardCharsets;
+import java.util.ArrayList;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.atomic.AtomicInteger;
+import java.util.function.Function;
+
+import org.junit.jupiter.api.Test;
+
+import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
+import org.springframework.cloud.function.context.config.MessageConverterHelper;
+import org.springframework.cloud.function.json.JacksonMapper;
+import org.springframework.cloud.stream.binder.test.InputDestination;
+import org.springframework.cloud.stream.binder.test.OutputDestination;
+import org.springframework.cloud.stream.binder.test.TestChannelBinder;
+import org.springframework.cloud.stream.binder.test.TestChannelBinderConfiguration;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.integration.support.MessageBuilder;
+import org.springframework.messaging.Message;
+import org.springframework.messaging.MessageHandlingException;
+import org.springframework.messaging.converter.MessageConversionException;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ *
+ */
+public class FunctionBatchingConversionTests {
+
+ @SuppressWarnings("unchecked")
+// @Test
+ void testBatchHeadersMatchingPayload() {
+ TestChannelBinderConfiguration.applicationContextRunner(BatchFunctionConfiguration.class)
+ .withPropertyValues("spring.cloud.stream.function.definition=func",
+ "spring.cloud.stream.bindings.func-in-0.consumer.batch-mode=true",
+ "spring.cloud.stream.rabbit.bindings.func-in-0.consumer.enable-batching=true")
+ .run(context -> {
+ InputDestination inputDestination = context.getBean(InputDestination.class);
+ OutputDestination outputDestination = context.getBean(OutputDestination.class);
+
+ List payloads = List.of("hello".getBytes(StandardCharsets.UTF_8),
+ "{\"name\":\"Ricky\"}".getBytes(StandardCharsets.UTF_8),
+ "{\"name\":\"Julien\"}".getBytes(StandardCharsets.UTF_8),
+ "{\"name\":\"Bubbles\"}".getBytes(StandardCharsets.UTF_8),
+ "hello".getBytes(StandardCharsets.UTF_8));
+ List
+
+ org.springframework.cloud
+ spring-cloud-stream-test-binder
+ test
+
org.springframework.cloud
spring-cloud-stream
diff --git a/binders/rabbit-binder/spring-cloud-stream-binder-rabbit/src/main/java/org/springframework/cloud/stream/binder/rabbit/config/DefaultMessageConverterHelper.java b/binders/rabbit-binder/spring-cloud-stream-binder-rabbit/src/main/java/org/springframework/cloud/stream/binder/rabbit/config/DefaultMessageConverterHelper.java
new file mode 100644
index 000000000..2134c1438
--- /dev/null
+++ b/binders/rabbit-binder/spring-cloud-stream-binder-rabbit/src/main/java/org/springframework/cloud/stream/binder/rabbit/config/DefaultMessageConverterHelper.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2019-2024 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.cloud.stream.binder.rabbit.config;
+
+import java.util.ArrayList;
+import java.util.concurrent.atomic.AtomicInteger;
+
+import org.springframework.cloud.function.context.config.MessageConverterHelper;
+import org.springframework.messaging.Message;
+
+/**
+ * @author Oleg Zhurakousky
+ */
+public class DefaultMessageConverterHelper implements MessageConverterHelper {
+
+ @Override
+ public boolean shouldFailIfCantConvert(Message> message) {
+ return false;
+ }
+
+ public void postProcessBatchMessageOnFailure(Message> message, int index) {
+ AtomicInteger deliveryAttempt = (AtomicInteger) message.getHeaders().get("deliveryAttempt");
+ if (message.getHeaders().containsKey("amqp_batchedHeaders") && deliveryAttempt != null && deliveryAttempt.get() == 1) {
+ ArrayList> list = (ArrayList>) message.getHeaders().get("amqp_batchedHeaders");
+ list.remove(index);
+ }
+ }
+}
diff --git a/binders/rabbit-binder/spring-cloud-stream-binder-rabbit/src/main/java/org/springframework/cloud/stream/binder/rabbit/config/MessageConverterHelperConfiguration.java b/binders/rabbit-binder/spring-cloud-stream-binder-rabbit/src/main/java/org/springframework/cloud/stream/binder/rabbit/config/MessageConverterHelperConfiguration.java
new file mode 100644
index 000000000..ea1ca65ac
--- /dev/null
+++ b/binders/rabbit-binder/spring-cloud-stream-binder-rabbit/src/main/java/org/springframework/cloud/stream/binder/rabbit/config/MessageConverterHelperConfiguration.java
@@ -0,0 +1,33 @@
+/*
+ * Copyright 2019-2024 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.cloud.stream.binder.rabbit.config;
+
+import org.springframework.cloud.function.context.config.MessageConverterHelper;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+/**
+ * @author Oleg Zhurakousky
+ */
+@Configuration(proxyBeanMethods = false)
+public class MessageConverterHelperConfiguration {
+
+ @Bean
+ public MessageConverterHelper messageConverterHelper() {
+ return new DefaultMessageConverterHelper();
+ }
+}
diff --git a/binders/rabbit-binder/spring-cloud-stream-binder-rabbit/src/main/resources/META-INF/spring/org.springframework.boot.autoconfigure.AutoConfiguration.imports b/binders/rabbit-binder/spring-cloud-stream-binder-rabbit/src/main/resources/META-INF/spring/org.springframework.boot.autoconfigure.AutoConfiguration.imports
index a6aa77f21..dcf45ff3c 100644
--- a/binders/rabbit-binder/spring-cloud-stream-binder-rabbit/src/main/resources/META-INF/spring/org.springframework.boot.autoconfigure.AutoConfiguration.imports
+++ b/binders/rabbit-binder/spring-cloud-stream-binder-rabbit/src/main/resources/META-INF/spring/org.springframework.boot.autoconfigure.AutoConfiguration.imports
@@ -1 +1,2 @@
org.springframework.cloud.stream.binder.rabbit.config.ExtendedBindingHandlerMappingsProviderConfiguration
+org.springframework.cloud.stream.binder.rabbit.config.MessageConverterHelperConfiguration
diff --git a/binders/rabbit-binder/spring-cloud-stream-binder-rabbit/src/test/java/org/springframework/cloud/stream/binder/rabbit/FunctionBatchingConversionTests.java b/binders/rabbit-binder/spring-cloud-stream-binder-rabbit/src/test/java/org/springframework/cloud/stream/binder/rabbit/FunctionBatchingConversionTests.java
new file mode 100644
index 000000000..768b0a513
--- /dev/null
+++ b/binders/rabbit-binder/spring-cloud-stream-binder-rabbit/src/test/java/org/springframework/cloud/stream/binder/rabbit/FunctionBatchingConversionTests.java
@@ -0,0 +1,180 @@
+/*
+ * Copyright 2019-2024 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.cloud.stream.binder.rabbit;
+
+import java.nio.charset.StandardCharsets;
+import java.util.ArrayList;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.atomic.AtomicInteger;
+import java.util.function.Function;
+
+import org.junit.jupiter.api.Test;
+
+import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
+import org.springframework.cloud.function.context.config.MessageConverterHelper;
+import org.springframework.cloud.function.json.JacksonMapper;
+import org.springframework.cloud.stream.binder.test.InputDestination;
+import org.springframework.cloud.stream.binder.test.OutputDestination;
+import org.springframework.cloud.stream.binder.test.TestChannelBinder;
+import org.springframework.cloud.stream.binder.test.TestChannelBinderConfiguration;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.integration.support.MessageBuilder;
+import org.springframework.messaging.Message;
+import org.springframework.messaging.MessageHandlingException;
+import org.springframework.messaging.converter.MessageConversionException;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ *
+ */
+public class FunctionBatchingConversionTests {
+
+ @SuppressWarnings("unchecked")
+ @Test
+ void testBatchHeadersMatchingPayload() {
+ TestChannelBinderConfiguration.applicationContextRunner(BatchFunctionConfiguration.class)
+ .withPropertyValues("spring.cloud.stream.function.definition=func",
+ "spring.cloud.stream.bindings.func-in-0.consumer.batch-mode=true",
+ "spring.cloud.stream.rabbit.bindings.func-in-0.consumer.enable-batching=true")
+ .run(context -> {
+ InputDestination inputDestination = context.getBean(InputDestination.class);
+ OutputDestination outputDestination = context.getBean(OutputDestination.class);
+
+ List payloads = List.of("hello".getBytes(StandardCharsets.UTF_8),
+ "{\"name\":\"Ricky\"}".getBytes(StandardCharsets.UTF_8),
+ "{\"name\":\"Julien\"}".getBytes(StandardCharsets.UTF_8),
+ "{\"name\":\"Bubbles\"}".getBytes(StandardCharsets.UTF_8),
+ "hello".getBytes(StandardCharsets.UTF_8));
+ List> amqpBatchHeaders = new ArrayList<>();
+ for (int i = 0; i < 5; i++) {
+ Map batchHeaders = new LinkedHashMap<>();
+ batchHeaders.put("amqp_receivedDeliveryMode", "PERSISTENT");
+ batchHeaders.put("index", String.valueOf(i));
+ amqpBatchHeaders.add(batchHeaders);
+ }
+
+ var message = MessageBuilder.withPayload(payloads)
+ .setHeader("amqp_batchedHeaders", amqpBatchHeaders)
+ .setHeader("deliveryAttempt", new AtomicInteger(1)).build();
+ inputDestination.send(message);
+
+ Message resultMessage = outputDestination.receive();
+ JacksonMapper mapper = context.getBean(JacksonMapper.class);
+ List> resultPayloads = mapper.fromJson(resultMessage.getPayload(), List.class);
+ assertThat(resultPayloads).hasSize(3);
+
+ List> amqpBatchedHeaders = (List>) resultMessage
+ .getHeaders().get("amqp_batchedHeaders");
+ assertThat(amqpBatchedHeaders).hasSize(resultPayloads.size());
+ assertThat(amqpBatchedHeaders.get(0).get("index")).isEqualTo("1");
+ assertThat(amqpBatchedHeaders.get(1).get("index")).isEqualTo("2");
+ assertThat(amqpBatchedHeaders.get(2).get("index")).isEqualTo("3");
+
+ context.stop();
+ });
+ }
+
+ @Test
+ void testBatchHeadersForcingFatalFailureOnConversiionException() {
+ TestChannelBinderConfiguration
+ .applicationContextRunner(BatchFunctionConfigurationWithAdditionalConversionHelper.class)
+ .withPropertyValues("spring.cloud.stream.function.definition=func",
+ "spring.cloud.stream.bindings.func-in-0.consumer.batch-mode=true",
+ "spring.cloud.stream.bindings.func-in-0.consumer.max-attempts=1",
+ "spring.cloud.stream.rabbit.bindings.func-in-0.consumer.enable-batching=true")
+ .run(context -> {
+ InputDestination inputDestination = context.getBean(InputDestination.class);
+
+ List payloads = List.of("hello".getBytes(StandardCharsets.UTF_8),
+ "{\"name\":\"Ricky\"}".getBytes(StandardCharsets.UTF_8),
+ "{\"name\":\"Julien\"}".getBytes(StandardCharsets.UTF_8),
+ "{\"name\":\"Bubbles\"}".getBytes(StandardCharsets.UTF_8),
+ "hello".getBytes(StandardCharsets.UTF_8));
+ List> amqpBatchHeaders = new ArrayList<>();
+ for (int i = 0; i < 5; i++) {
+ Map batchHeaders = new LinkedHashMap<>();
+ batchHeaders.put("amqp_receivedDeliveryMode", "PERSISTENT");
+ batchHeaders.put("index", String.valueOf(i));
+ amqpBatchHeaders.add(batchHeaders);
+ }
+
+ var message = MessageBuilder.withPayload(payloads)
+ .setHeader("amqp_batchedHeaders", amqpBatchHeaders)
+ .setHeader("deliveryAttempt", new AtomicInteger(1)).build();
+ inputDestination.send(message);
+ TestChannelBinder binder = context.getBean(TestChannelBinder.class);
+ assertThat(binder.getLastError().getPayload()).isInstanceOf(MessageHandlingException.class);
+ MessageHandlingException exception = (MessageHandlingException) binder.getLastError().getPayload();
+ assertThat(exception.getCause()).isInstanceOf(MessageConversionException.class);
+
+ context.stop();
+ });
+ }
+
+ @Configuration
+ @EnableAutoConfiguration
+ public static class BatchFunctionConfiguration {
+ @Bean
+ public Function>, Message>> func() {
+ return x -> {
+ return x;
+ };
+ }
+ }
+
+ @Configuration
+ @EnableAutoConfiguration
+ public static class BatchFunctionConfigurationWithAdditionalConversionHelper {
+
+ @Bean
+ public MessageConverterHelper helper() {
+ return new MessageConverterHelper() {
+ public boolean shouldFailIfCantConvert(Message> message) {
+ return true;
+ }
+ };
+ }
+
+ @Bean
+ public Function>, Message>> func() {
+ return x -> {
+ return x;
+ };
+ }
+ }
+
+ static class Person {
+
+ private String name;
+
+ public String getName() {
+ return name;
+ }
+
+ public void setName(String name) {
+ this.name = name;
+ }
+
+ public String toString() {
+ return "name: " + name;
+ }
+ }
+}
diff --git a/schema-registry/spring-cloud-stream-schema-registry-client/pom.xml b/schema-registry/spring-cloud-stream-schema-registry-client/pom.xml
index 61a7d42de..d9493ac5d 100644
--- a/schema-registry/spring-cloud-stream-schema-registry-client/pom.xml
+++ b/schema-registry/spring-cloud-stream-schema-registry-client/pom.xml
@@ -72,15 +72,19 @@
test
-
-
-
-
-
-
+
+ org.apache.maven.plugins
+ maven-checkstyle-plugin
+
+
+ checkstyle-validation
+ none
+
+
+
org.apache.avro
avro-maven-plugin