diff --git a/plugins/repository-s3/src/main/java/org/opensearch/repositories/s3/S3BlobContainer.java b/plugins/repository-s3/src/main/java/org/opensearch/repositories/s3/S3BlobContainer.java
index 47dc3f754f48b..14829a066ca3a 100644
--- a/plugins/repository-s3/src/main/java/org/opensearch/repositories/s3/S3BlobContainer.java
+++ b/plugins/repository-s3/src/main/java/org/opensearch/repositories/s3/S3BlobContainer.java
@@ -62,6 +62,7 @@
 import software.amazon.awssdk.services.s3.model.UploadPartRequest;
 import software.amazon.awssdk.services.s3.model.UploadPartResponse;
 import software.amazon.awssdk.services.s3.paginators.ListObjectsV2Iterable;
+import software.amazon.awssdk.utils.CollectionUtils;
 
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
@@ -591,7 +592,7 @@ void executeSingleUpload(
             .acl(blobStore.getCannedACL())
             .overrideConfiguration(o -> o.addMetricPublisher(blobStore.getStatsMetricPublisher().putObjectMetricPublisher));
 
-        if (metadata != null && !metadata.isEmpty()) {
+        if (CollectionUtils.isNotEmpty(metadata)) {
             putObjectRequestBuilder = putObjectRequestBuilder.metadata(metadata);
         }
         if (blobStore.serverSideEncryption()) {
@@ -648,7 +649,7 @@ void executeMultipartUpload(
             .acl(blobStore.getCannedACL())
             .overrideConfiguration(o -> o.addMetricPublisher(blobStore.getStatsMetricPublisher().multipartUploadMetricCollector));
 
-        if (metadata != null && !metadata.isEmpty()) {
+        if (CollectionUtils.isNotEmpty(metadata)) {
             createMultipartUploadRequestBuilder.metadata(metadata);
         }
 
diff --git a/plugins/repository-s3/src/main/java/org/opensearch/repositories/s3/async/AsyncTransferManager.java b/plugins/repository-s3/src/main/java/org/opensearch/repositories/s3/async/AsyncTransferManager.java
index 007fe77825b2a..80538059d17b8 100644
--- a/plugins/repository-s3/src/main/java/org/opensearch/repositories/s3/async/AsyncTransferManager.java
+++ b/plugins/repository-s3/src/main/java/org/opensearch/repositories/s3/async/AsyncTransferManager.java
@@ -22,6 +22,7 @@
 import software.amazon.awssdk.services.s3.model.DeleteObjectRequest;
 import software.amazon.awssdk.services.s3.model.PutObjectRequest;
 import software.amazon.awssdk.services.s3.model.S3Exception;
+import software.amazon.awssdk.utils.CollectionUtils;
 import software.amazon.awssdk.utils.CompletableFutureUtils;
 
 import org.apache.logging.log4j.LogManager;
@@ -132,7 +133,7 @@ private void uploadInParts(
             .key(uploadRequest.getKey())
             .overrideConfiguration(o -> o.addMetricPublisher(statsMetricPublisher.multipartUploadMetricCollector));
 
-        if (uploadRequest.getMetadata() != null && !uploadRequest.getMetadata().isEmpty()) {
+        if (CollectionUtils.isNotEmpty(uploadRequest.getMetadata())) {
             createMultipartUploadRequestBuilder.metadata(uploadRequest.getMetadata());
         }
         if (uploadRequest.doRemoteDataIntegrityCheck()) {
@@ -332,7 +333,7 @@ private void uploadInOneChunk(
             .contentLength(uploadRequest.getContentLength())
             .overrideConfiguration(o -> o.addMetricPublisher(statsMetricPublisher.putObjectMetricPublisher));
 
-        if (uploadRequest.getMetadata() != null && !uploadRequest.getMetadata().isEmpty()) {
+        if (CollectionUtils.isNotEmpty(uploadRequest.getMetadata())) {
             putObjectRequestBuilder.metadata(uploadRequest.getMetadata());
         }
         if (uploadRequest.doRemoteDataIntegrityCheck()) {
diff --git a/server/src/main/java/org/opensearch/common/blobstore/FetchBlobResult.java b/server/src/main/java/org/opensearch/common/blobstore/FetchBlobResult.java
index 5e1a13a17e798..55aca771b586c 100644
--- a/server/src/main/java/org/opensearch/common/blobstore/FetchBlobResult.java
+++ b/server/src/main/java/org/opensearch/common/blobstore/FetchBlobResult.java
@@ -8,6 +8,8 @@
 
 package org.opensearch.common.blobstore;
 
+import org.opensearch.common.annotation.ExperimentalApi;
+
 import java.io.InputStream;
 import java.util.Map;
 
@@ -17,6 +19,7 @@
  *
  * @opensearch.experimental
  */
+@ExperimentalApi
 public class FetchBlobResult {
 
     /**