Fix Artemis EmbeddedJMS initialization

Update `ArtemisConnectionFactoryFactory` to reference the new
embedded Artemis classes.

See gh-16646

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/jms/artemis/ArtemisConnectionFactoryFactory.java

@@ -43,7 +43,8 @@ import org.springframework.util.StringUtils;
  */
 class ArtemisConnectionFactoryFactory {
 
-	static final String EMBEDDED_JMS_CLASS = "org.apache.activemq.artemis.jms.server.embedded.EmbeddedJMS";
+	static final String[] EMBEDDED_JMS_CLASSES = { "org.apache.activemq.artemis.jms.server.embedded.EmbeddedJMS",
+			"org.apache.activemq.artemis.core.server.embedded.EmbeddedActiveMQ" };
 
 	private final ArtemisProperties properties;
 
@@ -67,15 +68,17 @@ class ArtemisConnectionFactoryFactory {
 	}
 
 	private void startEmbeddedJms() {
-		if (ClassUtils.isPresent(EMBEDDED_JMS_CLASS, null)) {
+		for (int i = 0; i < EMBEDDED_JMS_CLASSES.length; i++) {
+			if (ClassUtils.isPresent(EMBEDDED_JMS_CLASSES[i], null)) {
 				try {
-				this.beanFactory.getBeansOfType(Class.forName(EMBEDDED_JMS_CLASS));
+					this.beanFactory.getBeansOfType(Class.forName(EMBEDDED_JMS_CLASSES[i]));
 				}
 				catch (Exception ex) {
 					// Ignore
 				}
 			}
 		}
+	}
 
 	private <T extends ActiveMQConnectionFactory> T doCreateConnectionFactory(Class<T> factoryClass) throws Exception {
 		ArtemisMode mode = this.properties.getMode();
@@ -93,12 +96,21 @@ class ArtemisConnectionFactoryFactory {
 	 * @return the mode
 	 */
 	private ArtemisMode deduceMode() {
-		if (this.properties.getEmbedded().isEnabled() && ClassUtils.isPresent(EMBEDDED_JMS_CLASS, null)) {
+		if (this.properties.getEmbedded().isEnabled() && isEmbeddedJmsClassPresent()) {
 			return ArtemisMode.EMBEDDED;
 		}
 		return ArtemisMode.NATIVE;
 	}
 
+	private boolean isEmbeddedJmsClassPresent() {
+		for (int i = 0; i < EMBEDDED_JMS_CLASSES.length; i++) {
+			if (ClassUtils.isPresent(EMBEDDED_JMS_CLASSES[i], null)) {
+				return true;
+			}
+		}
+		return false;
+	}
+
 	private <T extends ActiveMQConnectionFactory> T createEmbeddedConnectionFactory(Class<T> factoryClass)
 			throws Exception {
 		try {