Better customization of the auto-configured ActiveMQConnectionFactory

This commit exposes additional properties and a callback interface to
further tune the auto-configured ActiveMQConnectionFactory.

Closes gh-9667

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

@@ -16,11 +16,14 @@
 
 package org.springframework.boot.autoconfigure.jms.activemq;
 
+import java.util.List;
+
 import javax.jms.ConnectionFactory;
 
 import org.apache.activemq.ActiveMQConnectionFactory;
 import org.apache.activemq.pool.PooledConnectionFactory;
 
+import org.springframework.beans.factory.ObjectProvider;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
@@ -44,9 +47,11 @@ class ActiveMQConnectionFactoryConfiguration {
 
 	@Bean
 	@ConditionalOnProperty(prefix = "spring.activemq.pool", name = "enabled", havingValue = "false", matchIfMissing = true)
-	public ActiveMQConnectionFactory jmsConnectionFactory(ActiveMQProperties properties) {
-		return new ActiveMQConnectionFactoryFactory(properties)
-				.createConnectionFactory(ActiveMQConnectionFactory.class);
+	public ActiveMQConnectionFactory jmsConnectionFactory(ActiveMQProperties properties,
+			ObjectProvider<List<ActiveMQConnectionFactoryCustomizer>> factoryCustomizers) {
+		return new ActiveMQConnectionFactoryFactory(properties,
+				factoryCustomizers.getIfAvailable()).createConnectionFactory(
+						ActiveMQConnectionFactory.class);
 	}
 
 	@ConditionalOnClass(PooledConnectionFactory.class)
@@ -56,10 +61,12 @@ class ActiveMQConnectionFactoryConfiguration {
 		@ConditionalOnProperty(prefix = "spring.activemq.pool", name = "enabled", havingValue = "true", matchIfMissing = false)
 		@ConfigurationProperties(prefix = "spring.activemq.pool.configuration")
 		public PooledConnectionFactory pooledJmsConnectionFactory(
-				ActiveMQProperties properties) {
+				ActiveMQProperties properties,
+				ObjectProvider<List<ActiveMQConnectionFactoryCustomizer>> factoryCustomizers) {
 			PooledConnectionFactory pooledConnectionFactory = new PooledConnectionFactory(
-					new ActiveMQConnectionFactoryFactory(properties)
-							.createConnectionFactory(ActiveMQConnectionFactory.class));
+					new ActiveMQConnectionFactoryFactory(properties,
+							factoryCustomizers.getIfAvailable()).createConnectionFactory(
+									ActiveMQConnectionFactory.class));
 			ActiveMQProperties.Pool pool = properties.getPool();
 			pooledConnectionFactory.setBlockIfSessionPoolIsFull(pool.isBlockIfFull());
 			pooledConnectionFactory.setBlockIfSessionPoolIsFullTimeout(

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

@@ -0,0 +1,36 @@
+/*
+ * Copyright 2012-2017 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
+ *
+ *      http://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.boot.autoconfigure.jms.activemq;
+
+import org.apache.activemq.ActiveMQConnectionFactory;
+
+/**
+ * Callback interface that can be implemented by beans wishing to customize the
+ * {@link ActiveMQConnectionFactory} whilst retaining default auto-configuration.
+ *
+ * @author Stephane Nicoll
+ * @since 1.5.5
+ */
+public interface ActiveMQConnectionFactoryCustomizer {
+
+	/**
+	 * Customize the {@link ActiveMQConnectionFactory}.
+	 * @param factory the factory to customize
+	 */
+	void customize(ActiveMQConnectionFactory factory);
+
+}

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2016 the original author or authors.
+ * Copyright 2012-2017 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.
@@ -17,6 +17,8 @@
 package org.springframework.boot.autoconfigure.jms.activemq;
 
 import java.lang.reflect.InvocationTargetException;
+import java.util.Collections;
+import java.util.List;
 
 import org.apache.activemq.ActiveMQConnectionFactory;
 
@@ -40,9 +42,14 @@ class ActiveMQConnectionFactoryFactory {
 
 	private final ActiveMQProperties properties;
 
-	ActiveMQConnectionFactoryFactory(ActiveMQProperties properties) {
+	private final List<ActiveMQConnectionFactoryCustomizer> factoryCustomizers;
+
+	ActiveMQConnectionFactoryFactory(ActiveMQProperties properties,
+			List<ActiveMQConnectionFactoryCustomizer> factoryCustomizers) {
 		Assert.notNull(properties, "Properties must not be null");
 		this.properties = properties;
+		this.factoryCustomizers = (factoryCustomizers != null ? factoryCustomizers
+				: Collections.<ActiveMQConnectionFactoryCustomizer>emptyList());
 	}
 
 	public <T extends ActiveMQConnectionFactory> T createConnectionFactory(
@@ -59,6 +66,9 @@ class ActiveMQConnectionFactoryFactory {
 	private <T extends ActiveMQConnectionFactory> T doCreateConnectionFactory(
 			Class<T> factoryClass) throws Exception {
 		T factory = createConnectionFactoryInstance(factoryClass);
+		factory.setCloseTimeout(this.properties.getCloseTimeout());
+		factory.setNonBlockingRedelivery(this.properties.isNonBlockingRedelivery());
+		factory.setSendTimeout(this.properties.getSendTimeout());
 		Packages packages = this.properties.getPackages();
 		if (packages.getTrustAll() != null) {
 			factory.setTrustAllPackages(packages.getTrustAll());
@@ -66,6 +76,7 @@ class ActiveMQConnectionFactoryFactory {
 		if (!packages.getTrusted().isEmpty()) {
 			factory.setTrustedPackages(packages.getTrusted());
 		}
+		customize(factory);
 		return factory;
 	}
 
@@ -82,6 +93,12 @@ class ActiveMQConnectionFactoryFactory {
 		return factoryClass.getConstructor(String.class).newInstance(brokerUrl);
 	}
 
+	private void customize(ActiveMQConnectionFactory connectionFactory) {
+		for (ActiveMQConnectionFactoryCustomizer factoryCustomizer : this.factoryCustomizers) {
+			factoryCustomizer.customize(connectionFactory);
+		}
+	}
+
 	String determineBrokerUrl() {
 		if (this.properties.getBrokerUrl() != null) {
 			return this.properties.getBrokerUrl();

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

@@ -53,6 +53,24 @@ public class ActiveMQProperties {
 	 */
 	private String password;
 
+	/**
+	 * Time to wait, in milliseconds, before considering a close complete.
+	 */
+	private int closeTimeout = 15000;
+
+	/**
+	 * Do not stop message delivery before re-delivering messages from a rolled back
+	 * transaction. This implies that message order will not be preserved when this is
+	 * enabled.
+	 */
+	private boolean nonBlockingRedelivery = false;
+
+	/**
+	 * Time to wait, in milliseconds, on Message sends for a response. Set it to 0 to
+	 * indicate to wait forever.
+	 */
+	private int sendTimeout = 0;
+
 	private Pool pool = new Pool();
 
 	private Packages packages = new Packages();
@@ -89,6 +107,30 @@ public class ActiveMQProperties {
 		this.password = password;
 	}
 
+	public int getCloseTimeout() {
+		return this.closeTimeout;
+	}
+
+	public void setCloseTimeout(int closeTimeout) {
+		this.closeTimeout = closeTimeout;
+	}
+
+	public boolean isNonBlockingRedelivery() {
+		return this.nonBlockingRedelivery;
+	}
+
+	public void setNonBlockingRedelivery(boolean nonBlockingRedelivery) {
+		this.nonBlockingRedelivery = nonBlockingRedelivery;
+	}
+
+	public int getSendTimeout() {
+		return this.sendTimeout;
+	}
+
+	public void setSendTimeout(int sendTimeout) {
+		this.sendTimeout = sendTimeout;
+	}
+
 	public Pool getPool() {
 		return this.pool;
 	}

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2016 the original author or authors.
+ * Copyright 2012-2017 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.
@@ -16,12 +16,15 @@
 
 package org.springframework.boot.autoconfigure.jms.activemq;
 
+import java.util.List;
+
 import javax.jms.ConnectionFactory;
 import javax.transaction.TransactionManager;
 
 import org.apache.activemq.ActiveMQConnectionFactory;
 import org.apache.activemq.ActiveMQXAConnectionFactory;
 
+import org.springframework.beans.factory.ObjectProvider;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
@@ -47,18 +50,22 @@ class ActiveMQXAConnectionFactoryConfiguration {
 	@Primary
 	@Bean(name = { "jmsConnectionFactory", "xaJmsConnectionFactory" })
 	public ConnectionFactory jmsConnectionFactory(ActiveMQProperties properties,
+			ObjectProvider<List<ActiveMQConnectionFactoryCustomizer>> factoryCustomizers,
 			XAConnectionFactoryWrapper wrapper) throws Exception {
 		ActiveMQXAConnectionFactory connectionFactory = new ActiveMQConnectionFactoryFactory(
-				properties).createConnectionFactory(ActiveMQXAConnectionFactory.class);
+				properties, factoryCustomizers.getIfAvailable())
+				.createConnectionFactory(ActiveMQXAConnectionFactory.class);
 		return wrapper.wrapConnectionFactory(connectionFactory);
 	}
 
 	@Bean
 	@ConditionalOnProperty(prefix = "spring.activemq.pool", name = "enabled", havingValue = "false", matchIfMissing = true)
 	public ActiveMQConnectionFactory nonXaJmsConnectionFactory(
-			ActiveMQProperties properties) {
-		return new ActiveMQConnectionFactoryFactory(properties)
-				.createConnectionFactory(ActiveMQConnectionFactory.class);
+			ActiveMQProperties properties,
+			ObjectProvider<List<ActiveMQConnectionFactoryCustomizer>> factoryCustomizers) {
+		return new ActiveMQConnectionFactoryFactory(properties,
+				factoryCustomizers.getIfAvailable()).createConnectionFactory(
+						ActiveMQConnectionFactory.class);
 	}
 
 }

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

@@ -61,6 +61,54 @@ public class ActiveMQAutoConfigurationTests {
 				.isTrue();
 	}
 
+	@Test
+	public void defaultsConnectionFactoryAreApplied() {
+		load(EmptyConfiguration.class, "spring.activemq.pool.enabled=false");
+		assertThat(this.context.getBeansOfType(ActiveMQConnectionFactory.class)).hasSize(1);
+		ActiveMQConnectionFactory connectionFactory = this.context.getBean(
+				ActiveMQConnectionFactory.class);
+		ActiveMQConnectionFactory defaultFactory = new ActiveMQConnectionFactory(
+				"vm://localhost?broker.persistent=false");
+		assertThat(connectionFactory.getUserName()).isEqualTo(
+				defaultFactory.getUserName());
+		assertThat(connectionFactory.getPassword()).isEqualTo(
+				defaultFactory.getPassword());
+		assertThat(connectionFactory.getCloseTimeout()).isEqualTo(
+				defaultFactory.getCloseTimeout());
+		assertThat(connectionFactory.isNonBlockingRedelivery()).isEqualTo(
+				defaultFactory.isNonBlockingRedelivery());
+		assertThat(connectionFactory.getSendTimeout()).isEqualTo(
+				defaultFactory.getSendTimeout());
+		assertThat(connectionFactory.isTrustAllPackages()).isEqualTo(
+				defaultFactory.isTrustAllPackages());
+		assertThat(connectionFactory.getTrustedPackages()).containsExactly(
+				defaultFactory.getTrustedPackages().toArray(new String[]{}));
+	}
+
+	@Test
+	public void customConnectionFactoryAreApplied() {
+		load(EmptyConfiguration.class, "spring.activemq.pool.enabled=false",
+				"spring.activemq.brokerUrl=vm://localhost?useJmx=false&broker.persistent=false",
+				"spring.activemq.user=foo",
+				"spring.activemq.password=bar",
+				"spring.activemq.closeTimeout=500",
+				"spring.activemq.nonBlockingRedelivery=true",
+				"spring.activemq.sendTimeout=1000",
+				"spring.activemq.packages.trust-all=false",
+				"spring.activemq.packages.trusted=com.example.acme");
+		assertThat(this.context.getBeansOfType(ActiveMQConnectionFactory.class)).hasSize(1);
+		ActiveMQConnectionFactory connectionFactory = this.context.getBean(
+				ActiveMQConnectionFactory.class);
+		assertThat(connectionFactory.getUserName()).isEqualTo("foo");
+		assertThat(connectionFactory.getPassword()).isEqualTo("bar");
+		assertThat(connectionFactory.getCloseTimeout()).isEqualTo(500);
+		assertThat(connectionFactory.isNonBlockingRedelivery()).isEqualTo(true);
+		assertThat(connectionFactory.getSendTimeout()).isEqualTo(1000);
+		assertThat(connectionFactory.isTrustAllPackages()).isFalse();
+		assertThat(connectionFactory.getTrustedPackages()).containsExactly(
+				"com.example.acme");
+	}
+
 	@Test
 	public void defaultsPooledConnectionFactoryAreApplied() {
 		load(EmptyConfiguration.class, "spring.activemq.pool.enabled=true");
@@ -161,6 +209,16 @@ public class ActiveMQAutoConfigurationTests {
 		assertThat(connectionFactory.createConnection()).isNull();
 	}
 
+	@Test
+	public void customizerOverridesAutConfig() {
+		load(CustomizerConfiguration.class);
+		ActiveMQConnectionFactory connectionFactory = this.context.getBean(
+				ActiveMQConnectionFactory.class);
+		assertThat(connectionFactory.getBrokerURL()).isEqualTo(
+				"vm://localhost?useJmx=false&broker.persistent=false");
+		assertThat(connectionFactory.getUserName()).isEqualTo("foobar");
+	}
+
 	private void load(Class<?> config, String... environment) {
 		this.context = doLoad(config, environment);
 	}
@@ -191,4 +249,20 @@ public class ActiveMQAutoConfigurationTests {
 
 	}
 
+	@Configuration
+	static class CustomizerConfiguration {
+
+		@Bean
+		public ActiveMQConnectionFactoryCustomizer activeMQConnectionFactoryCustomizer() {
+			return new ActiveMQConnectionFactoryCustomizer() {
+				@Override
+				public void customize(ActiveMQConnectionFactory factory) {
+					factory.setBrokerURL(
+							"vm://localhost?useJmx=false&broker.persistent=false");
+					factory.setUserName("foobar");
+				}
+			};
+		}
+	}
+
 }

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2016 the original author or authors.
+ * Copyright 2012-2017 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.
@@ -16,6 +16,8 @@
 
 package org.springframework.boot.autoconfigure.jms.activemq;
 
+import java.util.Collections;
+
 import org.apache.activemq.ActiveMQConnectionFactory;
 import org.junit.Test;
 
@@ -38,49 +40,53 @@ public class ActiveMQPropertiesTests {
 
 	@Test
 	public void getBrokerUrlIsInMemoryByDefault() {
-		assertThat(new ActiveMQConnectionFactoryFactory(this.properties)
-				.determineBrokerUrl()).isEqualTo(DEFAULT_EMBEDDED_BROKER_URL);
+		assertThat(createFactory(this.properties).determineBrokerUrl()).isEqualTo(
+				DEFAULT_EMBEDDED_BROKER_URL);
 	}
 
 	@Test
 	public void getBrokerUrlUseExplicitBrokerUrl() {
 		this.properties.setBrokerUrl("vm://foo-bar");
-		assertThat(new ActiveMQConnectionFactoryFactory(this.properties)
-				.determineBrokerUrl()).isEqualTo("vm://foo-bar");
+		assertThat(createFactory(this.properties).determineBrokerUrl()).isEqualTo(
+				"vm://foo-bar");
 	}
 
 	@Test
 	public void getBrokerUrlWithInMemorySetToFalse() {
 		this.properties.setInMemory(false);
-		assertThat(new ActiveMQConnectionFactoryFactory(this.properties)
-				.determineBrokerUrl()).isEqualTo(DEFAULT_NETWORK_BROKER_URL);
+		assertThat(createFactory(this.properties).determineBrokerUrl()).isEqualTo(
+				DEFAULT_NETWORK_BROKER_URL);
 	}
 
 	@Test
 	public void getExplicitBrokerUrlAlwaysWins() {
 		this.properties.setBrokerUrl("vm://foo-bar");
 		this.properties.setInMemory(false);
-		assertThat(new ActiveMQConnectionFactoryFactory(this.properties)
-				.determineBrokerUrl()).isEqualTo("vm://foo-bar");
+		assertThat(createFactory(this.properties).determineBrokerUrl()).isEqualTo(
+				"vm://foo-bar");
 	}
 
 	@Test
 	public void setTrustAllPackages() {
 		this.properties.getPackages().setTrustAll(true);
-		assertThat(new ActiveMQConnectionFactoryFactory(this.properties)
-				.createConnectionFactory(ActiveMQConnectionFactory.class)
-				.isTrustAllPackages()).isEqualTo(true);
+		assertThat(createFactory(this.properties).createConnectionFactory(
+				ActiveMQConnectionFactory.class).isTrustAllPackages()).isEqualTo(true);
 	}
 
 	@Test
 	public void setTrustedPackages() {
 		this.properties.getPackages().setTrustAll(false);
 		this.properties.getPackages().getTrusted().add("trusted.package");
-		ActiveMQConnectionFactory factory = new ActiveMQConnectionFactoryFactory(
-				this.properties).createConnectionFactory(ActiveMQConnectionFactory.class);
+		ActiveMQConnectionFactory factory = createFactory(this.properties)
+				.createConnectionFactory(ActiveMQConnectionFactory.class);
 		assertThat(factory.isTrustAllPackages()).isEqualTo(false);
 		assertThat(factory.getTrustedPackages().size()).isEqualTo(1);
 		assertThat(factory.getTrustedPackages().get(0)).isEqualTo("trusted.package");
 	}
 
+	private ActiveMQConnectionFactoryFactory createFactory(ActiveMQProperties properties) {
+		return new ActiveMQConnectionFactoryFactory(properties,
+				Collections.<ActiveMQConnectionFactoryCustomizer>emptyList());
+	}
+
 }

spring-boot-docs/src/main/asciidoc/appendix-application-properties.adoc

@@ -837,23 +837,26 @@ content into your application; rather pick only the properties that you need.
 	# ----------------------------------------
 
 	# ACTIVEMQ ({sc-spring-boot-autoconfigure}/jms/activemq/ActiveMQProperties.{sc-ext}[ActiveMQProperties])
-	spring.activemq.broker-url= # URL of the ActiveMQ broker. Auto-generated by default. For instance `tcp://localhost:61616`
+	spring.activemq.broker-url= # URL of the ActiveMQ broker. Auto-generated by default.
+	spring.activemq.close-timeout=15000 # Time to wait, in milliseconds, before considering a close complete.
 	spring.activemq.in-memory=true # Specify if the default broker URL should be in memory. Ignored if an explicit broker has been specified.
+	spring.activemq.non-blocking-redelivery=false # Do not stop message delivery before re-delivering messages from a rolled back transaction. This implies that message order will not be preserved when this is enabled.
 	spring.activemq.password= # Login password of the broker.
+	spring.activemq.send-timeout=0 # Time to wait, in milliseconds, on Message sends for a response. Set it to 0 to indicate to wait forever.
 	spring.activemq.user= # Login user of the broker.
-	spring.activemq.packages.trust-all=false # Trust all packages.
+	spring.activemq.packages.trust-all= # Trust all packages.
 	spring.activemq.packages.trusted= # Comma-separated list of specific packages to trust (when not trusting all packages).
 	spring.activemq.pool.block-if-full=true # Block when a connection is requested and the pool is full. Set it to false to throw a "JMSException" instead.
-    spring.activemq.pool.block-if-full-timeout=-1 # Blocking period, in milliseconds, before throwing an exception if the pool is still full.
-    spring.activemq.pool.create-connection-on-startup=true # Create a connection on startup. Can be used to warm-up the pool on startup.
-    spring.activemq.pool.enabled=false # Whether a PooledConnectionFactory should be created instead of a regular ConnectionFactory.
-    spring.activemq.pool.expiry-timeout=0 # Connection expiration timeout in milliseconds.
-    spring.activemq.pool.idle-timeout=30000 # Connection idle timeout in milliseconds.
-    spring.activemq.pool.max-connections=1 # Maximum number of pooled connections.
-    spring.activemq.pool.maximum-active-session-per-connection=500 # Maximum number of active sessions per connection.
-    spring.activemq.pool.reconnect-on-exception=true # Reset the connection when a "JMXException" occurs.
-    spring.activemq.pool.time-between-expiration-check=-1 # Time to sleep, in milliseconds, between runs of the idle connection eviction thread. When negative, no idle connection eviction thread runs.
-    spring.activemq.pool.use-anonymous-producers=true # Use only one anonymous "MessageProducer" instance. Set it to false to create one "MessageProducer" every time one is required.
+	spring.activemq.pool.block-if-full-timeout=-1 # Blocking period, in milliseconds, before throwing an exception if the pool is still full.
+	spring.activemq.pool.create-connection-on-startup=true # Create a connection on startup. Can be used to warm-up the pool on startup.
+	spring.activemq.pool.enabled=false # Whether a PooledConnectionFactory should be created instead of a regular ConnectionFactory.
+	spring.activemq.pool.expiry-timeout=0 # Connection expiration timeout in milliseconds.
+	spring.activemq.pool.idle-timeout=30000 # Connection idle timeout in milliseconds.
+	spring.activemq.pool.max-connections=1 # Maximum number of pooled connections.
+	spring.activemq.pool.maximum-active-session-per-connection=500 # Maximum number of active sessions per connection.
+	spring.activemq.pool.reconnect-on-exception=true # Reset the connection when a "JMXException" occurs.
+	spring.activemq.pool.time-between-expiration-check=-1 # Time to sleep, in milliseconds, between runs of the idle connection eviction thread. When negative, no idle connection eviction thread runs.
+	spring.activemq.pool.use-anonymous-producers=true # Use only one anonymous "MessageProducer" instance. Set it to false to create one "MessageProducer" every time one is required.
 
 	# ARTEMIS ({sc-spring-boot-autoconfigure}/jms/artemis/ArtemisProperties.{sc-ext}[ArtemisProperties])
 	spring.artemis.embedded.cluster-password= # Cluster password. Randomly generated on startup by default.

spring-boot-docs/src/main/asciidoc/spring-boot-features.adoc

@@ -4460,9 +4460,10 @@ accordingly:
 	spring.activemq.pool.max-connections=50
 ----
 
-See
+TIP: See
 {sc-spring-boot-autoconfigure}/jms/activemq/ActiveMQProperties.{sc-ext}[`ActiveMQProperties`]
-for more of the supported options.
+for more of the supported options. You can also register an arbitrary number of beans
+implementing `ActiveMQConnectionFactoryCustomizer` for more advanced customizations.
 
 By default, ActiveMQ creates a destination if it does not exist yet, so destinations are
 resolved against their provided names.