Migrated the following modules, nos using parent-boot-2:

spring-protobuf
spring-mockito
spring-mustache
spring-kafka
spring-jooq
spring-cucumber
spring-aop
spring-amqp-simple

spring-amqp-simple/src/main/java/com/baeldung/springamqpsimple/SpringAmqpConfig.java

@@ -35,7 +35,7 @@ public class SpringAmqpConfig {
     }
 
     @Bean
-    SimpleMessageListenerContainer container(ConnectionFactory connectionFactory,
+    SimpleMessageListenerContainer SpringAmqpContainer(ConnectionFactory connectionFactory,
             MessageListenerAdapter listenerAdapter) {
         SimpleMessageListenerContainer container = new SimpleMessageListenerContainer();
         container.setConnectionFactory(connectionFactory);

spring-amqp-simple/src/main/java/com/baeldung/springamqpsimple/broadcast/BroadcastConfig.java

@@ -61,7 +61,7 @@ public class BroadcastConfig {
     }
 
     @Bean
-    public SimpleRabbitListenerContainerFactory container(ConnectionFactory connectionFactory, SimpleRabbitListenerContainerFactoryConfigurer configurer) {
+    public SimpleRabbitListenerContainerFactory BroadcastContainer(ConnectionFactory connectionFactory, SimpleRabbitListenerContainerFactoryConfigurer configurer) {
         SimpleRabbitListenerContainerFactory factory = new SimpleRabbitListenerContainerFactory();
         configurer.configure(factory, connectionFactory);
         return factory;

spring-amqp-simple/src/test/resources/application.yaml

@@ -0,0 +1,5 @@
+spring:
+  rabbitmq:
+    username: guest
+    password: guest
+    host: localhost