Update dependencies; prepare for release

* Fix Checkstyle violations for `private` inner classes where they have to be also `final`
* Fix deprecations after upgrades
* Remove manual coroutines handling in the `GatewayProxyFactoryBean`
in favor of the same functionality in the `JdkDynamicProxy`

build.gradle

@@ -1,5 +1,5 @@
 buildscript {
-    ext.kotlinVersion = '1.9.0'
+    ext.kotlinVersion = '1.9.10'
     ext.isCI = System.getenv('GITHUB_ACTION') || System.getenv('bamboo_buildKey')
     repositories {
         gradlePluginPortal()
@@ -16,12 +16,12 @@ buildscript {
 
 plugins {
     id 'base'
-    id 'org.sonarqube' version '4.3.0.3225'
+    id 'org.sonarqube' version '4.3.1.3277'
     id 'io.spring.nohttp' version '0.0.11' apply false
     id 'org.ajoberstar.grgit' version '4.1.1'
     id 'io.spring.dependency-management' version '1.1.3'
-    id 'com.jfrog.artifactory' version '5.0.3' apply false
-    id 'org.jetbrains.dokka' version '1.8.20'
+    id 'com.jfrog.artifactory' version '5.1.6' apply false
+    id 'org.jetbrains.dokka' version '1.9.0'
     id 'org.antora' version '1.0.0'
     id 'io.spring.antora.generate-antora-yml' version '0.0.1'
 }
@@ -51,14 +51,14 @@ ext {
             }
 
     apacheSshdVersion = '2.10.0'
-    artemisVersion = '2.29.0'
-    aspectjVersion = '1.9.19'
+    artemisVersion = '2.30.0'
+    aspectjVersion = '1.9.20.1'
     assertjVersion = '3.24.2'
-    assertkVersion = '0.26.1'
+    assertkVersion = '0.27.0'
     avroVersion = '1.11.2'
     awaitilityVersion = '4.2.0'
-    camelVersion = '4.0.0-RC2'
-    commonsDbcp2Version = '2.9.0'
+    camelVersion = '4.0.0'
+    commonsDbcp2Version = '2.10.0'
     commonsIoVersion = '2.13.0'
     commonsNetVersion = '3.9.0'
     curatorVersion = '5.5.0'
@@ -66,17 +66,17 @@ ext {
     derbyVersion = '10.16.1.1'
     findbugsVersion = '3.0.1'
     ftpServerVersion = '1.2.0'
-    graalvmVersion = '23.0.0'
+    graalvmVersion = '23.0.1'
     greenmailVersion = '2.1.0-alpha-2'
-    groovyVersion = '4.0.13'
+    groovyVersion = '4.0.15'
     hamcrestVersion = '2.2'
-    hazelcastVersion = '5.3.1'
+    hazelcastVersion = '5.3.2'
     hibernateVersion = '6.2.8.Final'
     hsqldbVersion = '2.7.2'
-    h2Version = '2.2.220'
+    h2Version = '2.2.224'
     jacksonVersion = '2.15.2'
     jaxbVersion = '4.0.3'
-    jcifsVersion = '2.1.35'
+    jcifsVersion = '2.1.36'
     jeroMqVersion = '0.5.3'
     jmsApiVersion = '3.1.0'
     jpaApiVersion = '3.1.0'
@@ -85,39 +85,39 @@ ext {
     junit4Version = '4.13.2'
     junitJupiterVersion = '5.10.0'
     jythonVersion = '2.7.3'
-    kotlinCoroutinesVersion = '1.7.2'
+    kotlinCoroutinesVersion = '1.7.3'
     kryoVersion = '5.5.0'
     lettuceVersion = '6.2.6.RELEASE'
     log4jVersion = '2.20.0'
     mailVersion = '2.0.2'
-    micrometerTracingVersion = '1.2.0-M2'
-    micrometerVersion = '1.12.0-M2'
+    micrometerTracingVersion = '1.2.0-M3'
+    micrometerVersion = '1.12.0-M3'
     mockitoVersion = '5.5.0'
     mongoDriverVersion = '4.10.2'
     mysqlVersion = '8.0.33'
     pahoMqttClientVersion = '1.2.5'
     postgresVersion = '42.6.0'
-    protobufVersion = '3.24.1'
+    protobufVersion = '3.24.3'
     r2dbch2Version = '1.0.0.RELEASE'
-    reactorVersion = '2023.0.0-M2'
+    reactorVersion = '2023.0.0-M3'
     resilience4jVersion = '2.1.0'
     romeToolsVersion = '2.1.0'
     rsocketVersion = '1.1.4'
     servletApiVersion = '6.0.0'
     smackVersion = '4.4.6'
-    springAmqpVersion = '3.0.6'
-    springDataVersion = '2023.1.0-M2'
-    springGraphqlVersion = '1.2.2'
-    springKafkaVersion = '3.0.10'
-    springRetryVersion = '2.0.2'
-    springSecurityVersion = '6.2.0-M2'
-    springVersion = '6.1.0-M4'
-    springWsVersion = '4.0.4'
-    testcontainersVersion = '1.18.3'
-    tomcatVersion = '10.1.11'
+    springAmqpVersion = '3.1.0-M1'
+    springDataVersion = '2023.1.0-M3'
+    springGraphqlVersion = '1.2.3'
+    springKafkaVersion = '3.1.0-M1'
+    springRetryVersion = '2.0.3'
+    springSecurityVersion = '6.2.0-M3'
+    springVersion = '6.1.0-M5'
+    springWsVersion = '4.0.6'
+    testcontainersVersion = '1.19.0'
+    tomcatVersion = '10.1.13'
     xmlUnitVersion = '2.9.1'
     xstreamVersion = '1.4.20'
-    ztZipVersion = '1.15'
+    ztZipVersion = '1.16'
 
     javaProjects = subprojects - project(':spring-integration-bom')
 }
@@ -365,7 +365,7 @@ configure(javaProjects) { subproject ->
 
     checkstyle {
         configDirectory.set(rootProject.file('src/checkstyle'))
-        toolVersion = project.hasProperty('checkstyleVersion') ? project.checkstyleVersion : '10.12.1'
+        toolVersion = project.hasProperty('checkstyleVersion') ? project.checkstyleVersion : '10.12.3'
     }
 
     jar {

spring-integration-core/src/main/java/org/springframework/integration/dsl/Transformers.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2016-2022 the original author or authors.
+ * Copyright 2016-2023 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.
@@ -49,7 +49,7 @@ import org.springframework.lang.Nullable;
 import org.springframework.messaging.Message;
 
 /**
- * An utility class to provide methods for out-of-the-box
+ * A utility class to provide methods for out-of-the-box
  * {@link org.springframework.integration.transformer.Transformer}s.
  *
  * @author Artem Bilan
@@ -336,7 +336,7 @@ public abstract class Transformers {
 
 
 	@SuppressWarnings("serial")
-	private static class RequestMessageHolder extends AtomicReference<Message<?>> {
+	private static final class RequestMessageHolder extends AtomicReference<Message<?>> {
 
 	}
 

spring-integration-core/src/main/java/org/springframework/integration/gateway/GatewayProxyFactoryBean.java

@@ -73,7 +73,6 @@ import org.springframework.integration.support.channel.ChannelResolverUtils;
 import org.springframework.integration.support.management.IntegrationManagement;
 import org.springframework.integration.support.management.TrackableComponent;
 import org.springframework.integration.support.management.metrics.MetricsCaptor;
-import org.springframework.integration.util.CoroutinesUtils;
 import org.springframework.lang.Nullable;
 import org.springframework.messaging.Message;
 import org.springframework.messaging.MessageChannel;
@@ -597,6 +596,7 @@ public class GatewayProxyFactoryBean<T> extends AbstractEndpoint
 		int paramCount = method.getParameterTypes().length;
 		Object response;
 		boolean hasPayloadExpression = findPayloadExpression(method);
+
 		if (paramCount == 0 && !hasPayloadExpression) {
 			response = receive(gateway, method, !oneWay, shouldReturnMessage);
 		}
@@ -604,28 +604,20 @@ public class GatewayProxyFactoryBean<T> extends AbstractEndpoint
 			response = sendOrSendAndReceive(invocation, gateway, shouldReturnMessage, !oneWay);
 		}
 
-		Object continuation = null;
 		if (gateway.isSuspendingFunction) {
-			for (Object argument : invocation.getArguments()) {
-				if (argument != null && CoroutinesUtils.isContinuation(argument)) {
-					continuation = argument;
-					break;
-				}
-			}
+			return response;
 		}
 
-		return response(gateway.returnType, shouldReturnMessage, response, continuation);
+		return response(gateway.returnType, shouldReturnMessage, response);
 	}
 
 	@Nullable
-	private Object response(Class<?> returnType, boolean shouldReturnMessage,
-			@Nullable Object response, @Nullable Object continuation) {
-
+	private Object response(Class<?> returnType, boolean shouldReturnMessage, @Nullable Object response) {
 		if (shouldReturnMessage) {
 			return response;
 		}
 		else {
-			return response != null ? convert(response, returnType, continuation) : null;
+			return response != null ? convert(response, returnType) : null;
 		}
 	}
 
@@ -1041,23 +1033,19 @@ public class GatewayProxyFactoryBean<T> extends AbstractEndpoint
 
 	@Nullable
 	@SuppressWarnings("unchecked")
-	private <T> T convert(Object source, Class<T> expectedReturnType, @Nullable Object continuation) {
-		if (continuation != null) {
-			return CoroutinesUtils.monoAwaitSingleOrNull((Mono<T>) source, continuation);
-		}
+	private <P> P convert(Object source, Class<P> expectedReturnType) {
 		if (Future.class.isAssignableFrom(expectedReturnType)) {
-			return (T) source;
+			return (P) source;
 		}
 		if (Mono.class.isAssignableFrom(expectedReturnType)) {
-			return (T) source;
+			return (P) source;
 		}
 
-
 		return doConvert(source, expectedReturnType);
 	}
 
 	@Nullable
-	private <T> T doConvert(Object source, Class<T> expectedReturnType) {
+	private <P> P doConvert(Object source, Class<P> expectedReturnType) {
 		ConversionService conversionService = getConversionService();
 		if (conversionService != null) {
 			return conversionService.convert(source, expectedReturnType);

spring-integration-core/src/main/java/org/springframework/integration/splitter/AbstractMessageSplitter.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2022 the original author or authors.
+ * Copyright 2002-2023 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.
@@ -349,7 +349,7 @@ public abstract class AbstractMessageSplitter extends AbstractReplyProducingMess
 	protected abstract Object splitMessage(Message<?> message);
 
 
-	private static class JacksonNodeHelper {
+	private static final class JacksonNodeHelper {
 
 		private static boolean isNode(Object object) {
 			return object instanceof TreeNode;

spring-integration-file/src/main/java/org/springframework/integration/file/FileReadingMessageSource.java

@@ -435,7 +435,7 @@ public class FileReadingMessageSource extends AbstractMessageSource<File> implem
 
 	}
 
-	private class WatchServiceDirectoryScanner extends DefaultDirectoryScanner implements ManageableLifecycle {
+	private final class WatchServiceDirectoryScanner extends DefaultDirectoryScanner implements ManageableLifecycle {
 
 		private final ConcurrentMap<Path, WatchKey> pathKeys = new ConcurrentHashMap<>();
 

spring-integration-hazelcast/src/main/java/org/springframework/integration/hazelcast/inbound/HazelcastEventDrivenMessageProducer.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2015-2022 the original author or authors.
+ * Copyright 2015-2023 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.
@@ -27,7 +27,6 @@ import com.hazelcast.collection.ItemListener;
 import com.hazelcast.core.DistributedObject;
 import com.hazelcast.instance.EndpointQualifier;
 import com.hazelcast.map.IMap;
-import com.hazelcast.map.listener.MapListener;
 import com.hazelcast.multimap.MultiMap;
 import com.hazelcast.replicatedmap.ReplicatedMap;
 import com.hazelcast.topic.ITopic;
@@ -67,7 +66,7 @@ public class HazelcastEventDrivenMessageProducer extends AbstractHazelcastMessag
 	protected void doStart() {
 		if (this.distributedObject instanceof IMap) {
 			setHazelcastRegisteredEventListenerId(((IMap<?, ?>) this.distributedObject)
-					.addEntryListener((MapListener) new HazelcastEntryListener(), true));
+					.addEntryListener(new HazelcastEntryListener(), true));
 		}
 		else if (this.distributedObject instanceof MultiMap) {
 			setHazelcastRegisteredEventListenerId(((MultiMap<?, ?>) this.distributedObject)
@@ -125,7 +124,7 @@ public class HazelcastEventDrivenMessageProducer extends AbstractHazelcastMessag
 		return "hazelcast:inbound-channel-adapter";
 	}
 
-	private class HazelcastItemListener<E> extends AbstractHazelcastEventListener<ItemEvent<E>>
+	private final class HazelcastItemListener<E> extends AbstractHazelcastEventListener<ItemEvent<E>>
 			implements ItemListener<E> {
 
 		@Override
@@ -145,9 +144,7 @@ public class HazelcastEventDrivenMessageProducer extends AbstractHazelcastMessag
 						event.getMember().getSocketAddress(EndpointQualifier.MEMBER), getCacheListeningPolicy());
 			}
 
-			if (logger.isDebugEnabled()) {
-				logger.debug("Received ItemEvent : " + event);
-			}
+			logger.debug(() -> "Received ItemEvent : " + event);
 		}
 
 		@Override
@@ -161,7 +158,7 @@ public class HazelcastEventDrivenMessageProducer extends AbstractHazelcastMessag
 
 	}
 
-	private class HazelcastMessageListener<E> extends AbstractHazelcastEventListener<Message<E>>
+	private final class HazelcastMessageListener<E> extends AbstractHazelcastEventListener<Message<E>>
 			implements MessageListener<E> {
 
 		@Override
@@ -174,9 +171,7 @@ public class HazelcastEventDrivenMessageProducer extends AbstractHazelcastMessag
 			sendMessage(event,
 					event.getPublishingMember().getSocketAddress(EndpointQualifier.MEMBER), getCacheListeningPolicy());
 
-			if (logger.isDebugEnabled()) {
-				logger.debug("Received Message : " + event);
-			}
+			logger.debug(() -> "Received Message : " + event);
 		}
 
 		@Override

spring-integration-jdbc/src/main/java/org/springframework/integration/jdbc/store/JdbcMessageStore.java

@@ -750,7 +750,7 @@ public class JdbcMessageStore extends AbstractMessageGroupStore
 	 * Convenience class to be used to unpack a message from a result set row. Uses column named in the result set to
 	 * extract the required data, so that select clause ordering is unimportant.
 	 */
-	private class MessageMapper implements RowMapper<Message<?>> {
+	private final class MessageMapper implements RowMapper<Message<?>> {
 
 		@Override
 		public Message<?> mapRow(ResultSet rs, int rowNum) throws SQLException {

spring-integration-jdbc/src/test/java/org/springframework/integration/jdbc/store/JdbcMessageStoreTests.java

@@ -20,6 +20,7 @@ import java.io.BufferedReader;
 import java.io.InputStreamReader;
 import java.lang.reflect.Method;
 import java.sql.Timestamp;
+import java.time.Duration;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.List;
@@ -552,7 +553,7 @@ public class JdbcMessageStoreTests {
 		PoolableConnectionFactory poolFactory = new PoolableConnectionFactory(connFactory, null);
 		GenericObjectPoolConfig<PoolableConnection> config = new GenericObjectPoolConfig<>();
 		config.setMaxTotal(2);
-		config.setMaxWaitMillis(500);
+		config.setMaxWait(Duration.ofMillis(500));
 		ObjectPool<PoolableConnection> connPool = new GenericObjectPool<>(poolFactory, config);
 		poolFactory.setPool(connPool);
 		PoolingDataSource<PoolableConnection> poolingDataSource = new PoolingDataSource<>(connPool);

spring-integration-kafka/src/test/java/org/springframework/integration/kafka/inbound/MessageSourceIntegrationTests.java

@@ -133,7 +133,7 @@ class MessageSourceIntegrationTests {
 		assertThat(messageHistory.toString()).isEqualTo("myNullChannel");
 		received = source.receive();
 		assertThat(received).isNull();
-		assertThat(KafkaTestUtils.getPropertyValue(source, "consumer.fetcher.minBytes")).isEqualTo(2);
+		assertThat(KafkaTestUtils.getPropertyValue(source, "consumer.fetcher.fetchConfig.minBytes")).isEqualTo(2);
 		source.destroy();
 		template.destroy();
 	}

spring-integration-stomp/src/main/java/org/springframework/integration/stomp/inbound/StompInboundChannelAdapter.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2015-2021 the original author or authors.
+ * Copyright 2015-2023 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.
@@ -266,7 +266,7 @@ public class StompInboundChannelAdapter extends MessageProducerSupport implement
 		}
 	}
 
-	private class IntegrationInboundStompSessionHandler extends StompSessionHandlerAdapter {
+	private final class IntegrationInboundStompSessionHandler extends StompSessionHandlerAdapter {
 
 		@Override
 		public void afterConnected(StompSession session, StompHeaders connectedHeaders) {

spring-integration-zookeeper/src/main/java/org/springframework/integration/zookeeper/leader/LeaderInitiator.java

@@ -344,7 +344,7 @@ public class LeaderInitiator implements SmartLifecycle {
 
 	}
 
-	private class NullCuratorContext extends CuratorContext {
+	private final class NullCuratorContext extends CuratorContext {
 
 		@Override
 		public boolean isLeader() {