diff --git a/common/tensorflow-common/src/main/java/org/springframework/cloud/fn/common/tensorflow/deprecated/GraphicsUtils.java b/common/tensorflow-common/src/main/java/org/springframework/cloud/fn/common/tensorflow/deprecated/GraphicsUtils.java
index 246b14a4..d1e7a64f 100644
--- a/common/tensorflow-common/src/main/java/org/springframework/cloud/fn/common/tensorflow/deprecated/GraphicsUtils.java
+++ b/common/tensorflow-common/src/main/java/org/springframework/cloud/fn/common/tensorflow/deprecated/GraphicsUtils.java
@@ -606,7 +606,7 @@ public final class GraphicsUtils {
 	 * BufferedImage.TYPE_3BYTE_BGR, BufferedImage.TYPE_3BYTE_BGR.
 	 * @param image image to be converted into buffer
 	 * @param imageType desired type
-	 * @return
+	 * @return BufferedImage
 	 */
 	public static BufferedImage toBufferedImageType(BufferedImage image, int imageType) {
 		if (image.getType() == imageType) {
diff --git a/consumer/cassandra-consumer/src/test/java/org/springframework/cloud/fn/consumer/cassandra/CassandraConsumerApplicationTests.java b/consumer/cassandra-consumer/src/test/java/org/springframework/cloud/fn/consumer/cassandra/CassandraConsumerApplicationTests.java
index f67936ad..9ef3b810 100644
--- a/consumer/cassandra-consumer/src/test/java/org/springframework/cloud/fn/consumer/cassandra/CassandraConsumerApplicationTests.java
+++ b/consumer/cassandra-consumer/src/test/java/org/springframework/cloud/fn/consumer/cassandra/CassandraConsumerApplicationTests.java
@@ -24,7 +24,6 @@ import java.util.UUID;
 import java.util.function.Function;
 
 import org.junit.jupiter.api.AfterEach;
-
 import reactor.core.publisher.Mono;
 
 import org.springframework.beans.factory.annotation.Autowired;
diff --git a/consumer/cassandra-consumer/src/test/java/org/springframework/cloud/fn/consumer/cassandra/CassandraContainerTest.java b/consumer/cassandra-consumer/src/test/java/org/springframework/cloud/fn/consumer/cassandra/CassandraContainerTest.java
index 89342646..2a99ea7e 100644
--- a/consumer/cassandra-consumer/src/test/java/org/springframework/cloud/fn/consumer/cassandra/CassandraContainerTest.java
+++ b/consumer/cassandra-consumer/src/test/java/org/springframework/cloud/fn/consumer/cassandra/CassandraContainerTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2022 the original author or authors.
+ * Copyright 2022-2022 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/function/object-detection-function/src/main/java/org/springframework/cloud/fn/object/detection/ObjectDetectionOutputConverter.java b/function/object-detection-function/src/main/java/org/springframework/cloud/fn/object/detection/ObjectDetectionOutputConverter.java
index 6ef60d1c..f913c6ad 100644
--- a/function/object-detection-function/src/main/java/org/springframework/cloud/fn/object/detection/ObjectDetectionOutputConverter.java
+++ b/function/object-detection-function/src/main/java/org/springframework/cloud/fn/object/detection/ObjectDetectionOutputConverter.java
@@ -91,7 +91,7 @@ public class ObjectDetectionOutputConverter implements Function<Map<String, Tens
 	/**
 	 * Loads object labels in the string_int_label_map.proto.
 	 * @param labelsResource location of the labels as a resource
-	 * @return
+	 * @return String[] of labels
 	 */
 	private static String[] loadLabels(Resource labelsResource) throws Exception {
 		try (InputStream is = labelsResource.getInputStream()) {
diff --git a/supplier/mail-supplier/src/test/java/org/springframework/cloud/fn/supplier/mail/TestMailServer.java b/supplier/mail-supplier/src/test/java/org/springframework/cloud/fn/supplier/mail/TestMailServer.java
index 57e5331c..44b1c257 100644
--- a/supplier/mail-supplier/src/test/java/org/springframework/cloud/fn/supplier/mail/TestMailServer.java
+++ b/supplier/mail-supplier/src/test/java/org/springframework/cloud/fn/supplier/mail/TestMailServer.java
@@ -54,6 +54,9 @@ import org.springframework.util.Base64Utils;
 @Deprecated
 public final class TestMailServer {
 
+	private TestMailServer() {
+	}
+
 	public static SmtpServer smtp(int port) {
 		try {
 			return new SmtpServer(port);
@@ -544,7 +547,5 @@ public final class TestMailServer {
 
 	}
 
-	private TestMailServer() {
-	}
 
 }