diff --git a/binders/pulsar-binder/spring-cloud-stream-binder-pulsar/src/test/java/org/springframework/cloud/stream/binder/pulsar/ConsumerConfigPropertiesTests.java b/binders/pulsar-binder/spring-cloud-stream-binder-pulsar/src/test/java/org/springframework/cloud/stream/binder/pulsar/ConsumerConfigPropertiesTests.java
index 35f1c458f..8a5484de1 100644
--- a/binders/pulsar-binder/spring-cloud-stream-binder-pulsar/src/test/java/org/springframework/cloud/stream/binder/pulsar/ConsumerConfigPropertiesTests.java
+++ b/binders/pulsar-binder/spring-cloud-stream-binder-pulsar/src/test/java/org/springframework/cloud/stream/binder/pulsar/ConsumerConfigPropertiesTests.java
@@ -44,7 +44,7 @@ import static org.assertj.core.api.Assertions.assertThatNoException;
  * @author Soby Chacko
  * @author Chris Bono
  */
-public class ConsumerConfigPropertiesTests {
+class ConsumerConfigPropertiesTests {
 
 	@Test
 	void basePropsCanBeExtractedToMap() {
diff --git a/binders/pulsar-binder/spring-cloud-stream-binder-pulsar/src/test/java/org/springframework/cloud/stream/binder/pulsar/PulsarBinderConfigurationPropertiesTests.java b/binders/pulsar-binder/spring-cloud-stream-binder-pulsar/src/test/java/org/springframework/cloud/stream/binder/pulsar/PulsarBinderConfigurationPropertiesTests.java
index 06aa6c27b..ff006c736 100644
--- a/binders/pulsar-binder/spring-cloud-stream-binder-pulsar/src/test/java/org/springframework/cloud/stream/binder/pulsar/PulsarBinderConfigurationPropertiesTests.java
+++ b/binders/pulsar-binder/spring-cloud-stream-binder-pulsar/src/test/java/org/springframework/cloud/stream/binder/pulsar/PulsarBinderConfigurationPropertiesTests.java
@@ -40,7 +40,7 @@ import static org.assertj.core.api.Assertions.assertThatNoException;
  *
  * @author Chris Bono
  */
-public class PulsarBinderConfigurationPropertiesTests {
+class PulsarBinderConfigurationPropertiesTests {
 
 	@Test
 	void partitionCountProperty() {
diff --git a/binders/pulsar-binder/spring-cloud-stream-binder-pulsar/src/test/java/org/springframework/cloud/stream/binder/pulsar/PulsarBinderTests.java b/binders/pulsar-binder/spring-cloud-stream-binder-pulsar/src/test/java/org/springframework/cloud/stream/binder/pulsar/PulsarBinderTests.java
index 229959cd4..34c3774f8 100644
--- a/binders/pulsar-binder/spring-cloud-stream-binder-pulsar/src/test/java/org/springframework/cloud/stream/binder/pulsar/PulsarBinderTests.java
+++ b/binders/pulsar-binder/spring-cloud-stream-binder-pulsar/src/test/java/org/springframework/cloud/stream/binder/pulsar/PulsarBinderTests.java
@@ -66,7 +66,7 @@ import static org.assertj.core.api.Assertions.assertThat;
  *
  * @author Soby Chacko
  */
-public class PulsarBinderTests extends
+class PulsarBinderTests extends
 		PartitionCapableBinderTests<AbstractPulsarTestBinder, ExtendedConsumerProperties<PulsarConsumerProperties>, ExtendedProducerProperties<PulsarProducerProperties>>
 		implements PulsarTestContainerSupport {
 
diff --git a/binders/pulsar-binder/spring-cloud-stream-binder-pulsar/src/test/java/org/springframework/cloud/stream/binder/pulsar/PulsarBinderUtilsTests.java b/binders/pulsar-binder/spring-cloud-stream-binder-pulsar/src/test/java/org/springframework/cloud/stream/binder/pulsar/PulsarBinderUtilsTests.java
index 87b06afe7..2c90cd56b 100644
--- a/binders/pulsar-binder/spring-cloud-stream-binder-pulsar/src/test/java/org/springframework/cloud/stream/binder/pulsar/PulsarBinderUtilsTests.java
+++ b/binders/pulsar-binder/spring-cloud-stream-binder-pulsar/src/test/java/org/springframework/cloud/stream/binder/pulsar/PulsarBinderUtilsTests.java
@@ -45,7 +45,7 @@ import static org.mockito.Mockito.when;
  * @author Soby Chacko
  * @author Chris Bono
  */
-public class PulsarBinderUtilsTests {
+class PulsarBinderUtilsTests {
 
 	@Nested
 	class SubscriptionNameTests {
diff --git a/binders/pulsar-binder/spring-cloud-stream-binder-pulsar/src/test/java/org/springframework/cloud/stream/binder/pulsar/PulsarExtendedBindingPropertiesTests.java b/binders/pulsar-binder/spring-cloud-stream-binder-pulsar/src/test/java/org/springframework/cloud/stream/binder/pulsar/PulsarExtendedBindingPropertiesTests.java
index e24392b7f..f9fa9def1 100644
--- a/binders/pulsar-binder/spring-cloud-stream-binder-pulsar/src/test/java/org/springframework/cloud/stream/binder/pulsar/PulsarExtendedBindingPropertiesTests.java
+++ b/binders/pulsar-binder/spring-cloud-stream-binder-pulsar/src/test/java/org/springframework/cloud/stream/binder/pulsar/PulsarExtendedBindingPropertiesTests.java
@@ -42,7 +42,7 @@ import static org.assertj.core.api.Assertions.assertThatNoException;
  *
  * @author Chris Bono
  */
-public class PulsarExtendedBindingPropertiesTests {
+class PulsarExtendedBindingPropertiesTests {
 
 	@Test
 	void producerProperties() {
diff --git a/binders/pulsar-binder/spring-cloud-stream-binder-pulsar/src/test/java/org/springframework/cloud/stream/binder/pulsar/PulsarTestBinder.java b/binders/pulsar-binder/spring-cloud-stream-binder-pulsar/src/test/java/org/springframework/cloud/stream/binder/pulsar/PulsarTestBinder.java
index 6040c54cc..23ed1b023 100644
--- a/binders/pulsar-binder/spring-cloud-stream-binder-pulsar/src/test/java/org/springframework/cloud/stream/binder/pulsar/PulsarTestBinder.java
+++ b/binders/pulsar-binder/spring-cloud-stream-binder-pulsar/src/test/java/org/springframework/cloud/stream/binder/pulsar/PulsarTestBinder.java
@@ -33,7 +33,7 @@ import org.springframework.pulsar.support.header.PulsarHeaderMapper;
  * @author Soby Chacko
  * @author Chris Bono
  */
-public class PulsarTestBinder extends AbstractPulsarTestBinder {
+class PulsarTestBinder extends AbstractPulsarTestBinder {
 
 	@SuppressWarnings({ "unchecked" })
 	PulsarTestBinder(PulsarTopicProvisioner pulsarTopicProvisioner, PulsarTemplate<?> pulsarTemplate,
diff --git a/binders/pulsar-binder/spring-cloud-stream-binder-pulsar/src/test/java/org/springframework/cloud/stream/binder/pulsar/PulsarTestContainerSupport.java b/binders/pulsar-binder/spring-cloud-stream-binder-pulsar/src/test/java/org/springframework/cloud/stream/binder/pulsar/PulsarTestContainerSupport.java
index 00107f3af..e938cb41a 100644
--- a/binders/pulsar-binder/spring-cloud-stream-binder-pulsar/src/test/java/org/springframework/cloud/stream/binder/pulsar/PulsarTestContainerSupport.java
+++ b/binders/pulsar-binder/spring-cloud-stream-binder-pulsar/src/test/java/org/springframework/cloud/stream/binder/pulsar/PulsarTestContainerSupport.java
@@ -27,7 +27,7 @@ import org.testcontainers.utility.DockerImageName;
  * @author Chris Bono
  */
 @Testcontainers(disabledWithoutDocker = true)
-public interface PulsarTestContainerSupport {
+interface PulsarTestContainerSupport {
 
 	PulsarContainer PULSAR_CONTAINER = new PulsarContainer(getPulsarImage());
 
diff --git a/binders/pulsar-binder/spring-cloud-stream-binder-pulsar/src/test/java/org/springframework/cloud/stream/binder/pulsar/PulsarTopicProvisionerTests.java b/binders/pulsar-binder/spring-cloud-stream-binder-pulsar/src/test/java/org/springframework/cloud/stream/binder/pulsar/PulsarTopicProvisionerTests.java
index fb60f0e71..0f99083d3 100644
--- a/binders/pulsar-binder/spring-cloud-stream-binder-pulsar/src/test/java/org/springframework/cloud/stream/binder/pulsar/PulsarTopicProvisionerTests.java
+++ b/binders/pulsar-binder/spring-cloud-stream-binder-pulsar/src/test/java/org/springframework/cloud/stream/binder/pulsar/PulsarTopicProvisionerTests.java
@@ -38,7 +38,7 @@ import static org.mockito.Mockito.verify;
 /**
  * @author Soby Chacko
  */
-public class PulsarTopicProvisionerTests {
+class PulsarTopicProvisionerTests {
 
 	@Test
 	void provisionThroughProducerBindingWithDefaultPartitioning() {