diff --git a/spring-boot-project/spring-boot-testcontainers/src/main/java/org/springframework/boot/testcontainers/service/connection/ContainerConnectionSource.java b/spring-boot-project/spring-boot-testcontainers/src/main/java/org/springframework/boot/testcontainers/service/connection/ContainerConnectionSource.java
index d10ca54480..9f8411b38c 100644
--- a/spring-boot-project/spring-boot-testcontainers/src/main/java/org/springframework/boot/testcontainers/service/connection/ContainerConnectionSource.java
+++ b/spring-boot-project/spring-boot-testcontainers/src/main/java/org/springframework/boot/testcontainers/service/connection/ContainerConnectionSource.java
@@ -54,9 +54,9 @@ public final class ContainerConnectionSource<D extends ConnectionDetails, C exte
 
 	private final C container;
 
-	private String acceptedConnectionName;
+	private final String acceptedConnectionName;
 
-	private Set<Class<?>> acceptedConnectionDetailsTypes;
+	private final Set<Class<?>> acceptedConnectionDetailsTypes;
 
 	ContainerConnectionSource(String beanNameSuffix, Origin origin, C container,
 			MergedAnnotation<ServiceConnection> annotation) {
@@ -100,8 +100,8 @@ public final class ContainerConnectionSource<D extends ConnectionDetails, C exte
 				.formatted(this, connectionName, this.acceptedConnectionName)));
 			return false;
 		}
-		if (!this.acceptedConnectionDetailsTypes.isEmpty() && !this.acceptedConnectionDetailsTypes.stream()
-			.anyMatch((candidate) -> candidate.isAssignableFrom(connectionDetailsType))) {
+		if (!this.acceptedConnectionDetailsTypes.isEmpty() && this.acceptedConnectionDetailsTypes.stream()
+			.noneMatch((candidate) -> candidate.isAssignableFrom(connectionDetailsType))) {
 			logger.trace(LogMessage.of(() -> "%s not accepted as connection details type %s not in %s".formatted(this,
 					connectionDetailsType, this.acceptedConnectionDetailsTypes)));
 			return false;
diff --git a/spring-boot-project/spring-boot-testcontainers/src/main/java/org/springframework/boot/testcontainers/service/connection/ServiceConnectionContextCustomizerFactory.java b/spring-boot-project/spring-boot-testcontainers/src/main/java/org/springframework/boot/testcontainers/service/connection/ServiceConnectionContextCustomizerFactory.java
index 09146036a1..06277ecb24 100644
--- a/spring-boot-project/spring-boot-testcontainers/src/main/java/org/springframework/boot/testcontainers/service/connection/ServiceConnectionContextCustomizerFactory.java
+++ b/spring-boot-project/spring-boot-testcontainers/src/main/java/org/springframework/boot/testcontainers/service/connection/ServiceConnectionContextCustomizerFactory.java
@@ -72,8 +72,8 @@ class ServiceConnectionContextCustomizerFactory implements ContextCustomizerFact
 				+ StringUtils.capitalize(field.getName());
 		Origin origin = new FieldOrigin(field);
 		Object fieldValue = getFieldValue(field);
-		Assert.state(Container.class.isInstance(fieldValue), () -> "Field '%s' in %s must be a %s"
-			.formatted(field.getName(), field.getDeclaringClass().getName(), Container.class.getName()));
+		Assert.state(fieldValue instanceof Container, () -> "Field '%s' in %s must be a %s".formatted(field.getName(),
+				field.getDeclaringClass().getName(), Container.class.getName()));
 		Container<?> container = (Container<?>) fieldValue;
 		return new ContainerConnectionSource<>(beanNameSuffix, origin, container, annotation);
 	}
diff --git a/spring-boot-project/spring-boot-testcontainers/src/main/java/org/springframework/boot/testcontainers/service/connection/amqp/RabbitContainerConnectionDetailsFactory.java b/spring-boot-project/spring-boot-testcontainers/src/main/java/org/springframework/boot/testcontainers/service/connection/amqp/RabbitContainerConnectionDetailsFactory.java
index b4cdd9d142..4c3fbdb745 100644
--- a/spring-boot-project/spring-boot-testcontainers/src/main/java/org/springframework/boot/testcontainers/service/connection/amqp/RabbitContainerConnectionDetailsFactory.java
+++ b/spring-boot-project/spring-boot-testcontainers/src/main/java/org/springframework/boot/testcontainers/service/connection/amqp/RabbitContainerConnectionDetailsFactory.java
@@ -68,11 +68,6 @@ class RabbitContainerConnectionDetailsFactory
 			return this.container.getAdminPassword();
 		}
 
-		@Override
-		public String getVirtualHost() {
-			return null;
-		}
-
 		@Override
 		public List<Address> getAddresses() {
 			URI uri = URI.create(this.container.getAmqpUrl());