diff --git a/binders/kafka-binder/spring-cloud-stream-binder-kafka-streams/src/test/java/org/springframework/cloud/stream/binder/kafka/streams/EventTypeRoutingWithInferredSerdeTests.java b/binders/kafka-binder/spring-cloud-stream-binder-kafka-streams/src/test/java/org/springframework/cloud/stream/binder/kafka/streams/EventTypeRoutingWithInferredSerdeTests.java
index 003e91de1..637832588 100644
--- a/binders/kafka-binder/spring-cloud-stream-binder-kafka-streams/src/test/java/org/springframework/cloud/stream/binder/kafka/streams/EventTypeRoutingWithInferredSerdeTests.java
+++ b/binders/kafka-binder/spring-cloud-stream-binder-kafka-streams/src/test/java/org/springframework/cloud/stream/binder/kafka/streams/EventTypeRoutingWithInferredSerdeTests.java
@@ -52,7 +52,7 @@ import org.springframework.kafka.test.utils.KafkaTestUtils;
 import static org.assertj.core.api.Assertions.assertThat;
 
 /**
- * For more context around this test, see https://github.com/spring-cloud/spring-cloud-stream/issues/2613
+ * For more context around this test, see https://github.com/spring-cloud/spring-cloud-stream/issues/2613.
  *
  * @author Soby Chacko
  */
diff --git a/binders/kafka-binder/spring-cloud-stream-binder-kafka-streams/src/test/java/org/springframework/cloud/stream/binder/kafka/streams/KafkaStreamsBinderUtilsTests.java b/binders/kafka-binder/spring-cloud-stream-binder-kafka-streams/src/test/java/org/springframework/cloud/stream/binder/kafka/streams/KafkaStreamsBinderUtilsTests.java
index 60b10f2c6..0a1ee3fc8 100644
--- a/binders/kafka-binder/spring-cloud-stream-binder-kafka-streams/src/test/java/org/springframework/cloud/stream/binder/kafka/streams/KafkaStreamsBinderUtilsTests.java
+++ b/binders/kafka-binder/spring-cloud-stream-binder-kafka-streams/src/test/java/org/springframework/cloud/stream/binder/kafka/streams/KafkaStreamsBinderUtilsTests.java
@@ -21,7 +21,7 @@ import org.junit.jupiter.api.Test;
 import static org.assertj.core.api.Assertions.assertThat;
 
 /**
- * Tests for {@link KafkaStreamsBinderUtils} functions
+ * Tests for {@link KafkaStreamsBinderUtils} functions.
  *
  * @author James Forward
  * @author Soby Chacko
diff --git a/binders/kafka-binder/spring-cloud-stream-binder-kafka-streams/src/test/java/org/springframework/cloud/stream/binder/kafka/streams/integration/KafkaStreamsNativeEncodingDecodingTests.java b/binders/kafka-binder/spring-cloud-stream-binder-kafka-streams/src/test/java/org/springframework/cloud/stream/binder/kafka/streams/integration/KafkaStreamsNativeEncodingDecodingTests.java
index ddbc2d614..01c0248f6 100644
--- a/binders/kafka-binder/spring-cloud-stream-binder-kafka-streams/src/test/java/org/springframework/cloud/stream/binder/kafka/streams/integration/KafkaStreamsNativeEncodingDecodingTests.java
+++ b/binders/kafka-binder/spring-cloud-stream-binder-kafka-streams/src/test/java/org/springframework/cloud/stream/binder/kafka/streams/integration/KafkaStreamsNativeEncodingDecodingTests.java
@@ -68,6 +68,9 @@ import static org.mockito.Mockito.verify;
 @DirtiesContext
 public abstract class KafkaStreamsNativeEncodingDecodingTests {
 
+	/**
+	 * Kafka rule.
+	 */
 	@ClassRule
 	public static EmbeddedKafkaRule embeddedKafkaRule = new EmbeddedKafkaRule(1, true,
 			"decode-counts", "decode-counts-1");