diff --git a/oauth2_http/java/com/google/auth/oauth2/AwsRequestSigner.java b/oauth2_http/java/com/google/auth/oauth2/AwsRequestSigner.java
index baf855124..275c15105 100644
--- a/oauth2_http/java/com/google/auth/oauth2/AwsRequestSigner.java
+++ b/oauth2_http/java/com/google/auth/oauth2/AwsRequestSigner.java
@@ -237,7 +237,8 @@ private Map<String, String> getCanonicalHeaders(String defaultDate) {
       headers.put("x-amz-date", defaultDate);
     }
 
-    if (awsSecurityCredentials.getSessionToken() != null && !awsSecurityCredentials.getSessionToken().isEmpty()) {
+    if (awsSecurityCredentials.getSessionToken() != null
+        && !awsSecurityCredentials.getSessionToken().isEmpty()) {
       headers.put("x-amz-security-token", awsSecurityCredentials.getSessionToken());
     }
 
diff --git a/oauth2_http/java/com/google/auth/oauth2/AwsSecurityCredentials.java b/oauth2_http/java/com/google/auth/oauth2/AwsSecurityCredentials.java
index ddbaf338f..7101dda3e 100644
--- a/oauth2_http/java/com/google/auth/oauth2/AwsSecurityCredentials.java
+++ b/oauth2_http/java/com/google/auth/oauth2/AwsSecurityCredentials.java
@@ -51,7 +51,8 @@ public class AwsSecurityCredentials {
    * @param secretAccessKey the AWS secret access key.
    * @param sessionToken the AWS session token. Optional.
    */
-  public AwsSecurityCredentials(String accessKeyId, String secretAccessKey, @Nullable String sessionToken) {
+  public AwsSecurityCredentials(
+      String accessKeyId, String secretAccessKey, @Nullable String sessionToken) {
     this.accessKeyId = accessKeyId;
     this.secretAccessKey = secretAccessKey;
     this.sessionToken = sessionToken;
@@ -59,6 +60,7 @@ public AwsSecurityCredentials(String accessKeyId, String secretAccessKey, @Nulla
 
   /**
    * Gets the AWS access key id.
+   *
    * @return the AWS access key id.
    */
   public String getAccessKeyId() {
@@ -67,6 +69,7 @@ public String getAccessKeyId() {
 
   /**
    * Gets the AWS secret access key.
+   *
    * @return the AWS secret access key.
    */
   public String getSecretAccessKey() {
@@ -75,6 +78,7 @@ public String getSecretAccessKey() {
 
   /**
    * Gets the AWS session token.
+   *
    * @return the AWS session token.
    */
   @Nullable