Merge pull request #17531 from nosan

* pr/17531:
  Polish "Configure ActiveMQConnectionFactory properly without spring-jms"
  Configure ActiveMQConnectionFactory properly without spring-jms

Closes gh-17531

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/jms/activemq/ActiveMQConnectionFactoryConfiguration.java

@@ -16,7 +16,6 @@
 
 package org.springframework.boot.autoconfigure.jms.activemq;
 
-import java.util.List;
 import java.util.stream.Collectors;
 
 import javax.jms.ConnectionFactory;
@@ -49,46 +48,41 @@ import org.springframework.jms.connection.CachingConnectionFactory;
 class ActiveMQConnectionFactoryConfiguration {
 
 	@Configuration
-	@ConditionalOnClass(CachingConnectionFactory.class)
 	@ConditionalOnProperty(prefix = "spring.activemq.pool", name = "enabled", havingValue = "false",
 			matchIfMissing = true)
 	static class SimpleConnectionFactoryConfiguration {
 
-		private final JmsProperties jmsProperties;
-
-		private final ActiveMQProperties properties;
-
-		private final List<ActiveMQConnectionFactoryCustomizer> connectionFactoryCustomizers;
-
-		SimpleConnectionFactoryConfiguration(JmsProperties jmsProperties, ActiveMQProperties properties,
-				ObjectProvider<ActiveMQConnectionFactoryCustomizer> connectionFactoryCustomizers) {
-			this.jmsProperties = jmsProperties;
-			this.properties = properties;
-			this.connectionFactoryCustomizers = connectionFactoryCustomizers.orderedStream()
-					.collect(Collectors.toList());
+		@Bean
+		@ConditionalOnProperty(prefix = "spring.jms.cache", name = "enabled", havingValue = "false")
+		public ActiveMQConnectionFactory jmsConnectionFactory(ActiveMQProperties properties,
+				ObjectProvider<ActiveMQConnectionFactoryCustomizer> factoryCustomizers) {
+			return new ActiveMQConnectionFactoryFactory(properties,
+					factoryCustomizers.orderedStream().collect(Collectors.toList()))
+							.createConnectionFactory(ActiveMQConnectionFactory.class);
 		}
 
+		@ConditionalOnClass(CachingConnectionFactory.class)
+		@ConditionalOnProperty(prefix = "spring.jms.cache", name = "enabled", havingValue = "true",
+				matchIfMissing = true)
+		static class CachingConnectionFactoryConfiguration {
+
 			@Bean
 			@ConditionalOnProperty(prefix = "spring.jms.cache", name = "enabled", havingValue = "true",
 					matchIfMissing = true)
-		public CachingConnectionFactory cachingJmsConnectionFactory() {
-			JmsProperties.Cache cacheProperties = this.jmsProperties.getCache();
-			CachingConnectionFactory connectionFactory = new CachingConnectionFactory(createConnectionFactory());
+			public CachingConnectionFactory cachingJmsConnectionFactory(JmsProperties jmsProperties,
+					ActiveMQProperties properties,
+					ObjectProvider<ActiveMQConnectionFactoryCustomizer> factoryCustomizers) {
+				JmsProperties.Cache cacheProperties = jmsProperties.getCache();
+				CachingConnectionFactory connectionFactory = new CachingConnectionFactory(
+						new ActiveMQConnectionFactoryFactory(properties,
+								factoryCustomizers.orderedStream().collect(Collectors.toList()))
+										.createConnectionFactory(ActiveMQConnectionFactory.class));
 				connectionFactory.setCacheConsumers(cacheProperties.isConsumers());
 				connectionFactory.setCacheProducers(cacheProperties.isProducers());
 				connectionFactory.setSessionCacheSize(cacheProperties.getSessionCacheSize());
 				return connectionFactory;
 			}
 
-		@Bean
-		@ConditionalOnProperty(prefix = "spring.jms.cache", name = "enabled", havingValue = "false")
-		public ActiveMQConnectionFactory jmsConnectionFactory() {
-			return createConnectionFactory();
-		}
-
-		private ActiveMQConnectionFactory createConnectionFactory() {
-			return new ActiveMQConnectionFactoryFactory(this.properties, this.connectionFactoryCustomizers)
-					.createConnectionFactory(ActiveMQConnectionFactory.class);
 		}
 
 	}
@@ -98,8 +92,7 @@ class ActiveMQConnectionFactoryConfiguration {
 	static class PooledConnectionFactoryConfiguration {
 
 		@Bean(destroyMethod = "stop")
-		@ConditionalOnProperty(prefix = "spring.activemq.pool", name = "enabled", havingValue = "true",
-				matchIfMissing = false)
+		@ConditionalOnProperty(prefix = "spring.activemq.pool", name = "enabled", havingValue = "true")
 		public JmsPoolConnectionFactory pooledJmsConnectionFactory(ActiveMQProperties properties,
 				ObjectProvider<ActiveMQConnectionFactoryCustomizer> factoryCustomizers) {
 			ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactoryFactory(properties,

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/jms/activemq/ActiveMQAutoConfigurationTests.java

@@ -24,6 +24,7 @@ import org.messaginghub.pooled.jms.JmsPoolConnectionFactory;
 
 import org.springframework.boot.autoconfigure.AutoConfigurations;
 import org.springframework.boot.autoconfigure.jms.JmsAutoConfiguration;
+import org.springframework.boot.test.context.FilteredClassLoader;
 import org.springframework.boot.test.context.runner.ApplicationContextRunner;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
@@ -202,6 +203,20 @@ public class ActiveMQAutoConfigurationTests {
 				});
 	}
 
+	@Test
+	public void cachingConnectionFactoryNotOnTheClasspathThenSimpleConnectionFactoryAutoConfigured() {
+		this.contextRunner.withClassLoader(new FilteredClassLoader(CachingConnectionFactory.class))
+				.withPropertyValues("spring.activemq.pool.enabled=false", "spring.jms.cache.enabled=false")
+				.run((context) -> assertThat(context).hasSingleBean(ActiveMQConnectionFactory.class));
+	}
+
+	@Test
+	public void cachingConnectionFactoryNotOnTheClasspathAndCacheEnabledThenSimpleConnectionFactoryNotConfigured() {
+		this.contextRunner.withClassLoader(new FilteredClassLoader(CachingConnectionFactory.class))
+				.withPropertyValues("spring.activemq.pool.enabled=false", "spring.jms.cache.enabled=true")
+				.run((context) -> assertThat(context).doesNotHaveBean(ActiveMQConnectionFactory.class));
+	}
+
 	@Configuration
 	static class EmptyConfiguration {