diff --git a/build.gradle b/build.gradle
index 7717034434..2f933c8886 100644
--- a/build.gradle
+++ b/build.gradle
@@ -386,6 +386,7 @@ checkstyle {
 }
 
 tasks.withType(Checkstyle) {
+    dependsOn(':precommit')
     reports {
         ignoreFailures = false
     }
diff --git a/src/main/java/org/opensearch/security/filter/NettyAttribute.java b/src/main/java/org/opensearch/security/filter/NettyAttribute.java
index 685e94e199..46bf0296cb 100644
--- a/src/main/java/org/opensearch/security/filter/NettyAttribute.java
+++ b/src/main/java/org/opensearch/security/filter/NettyAttribute.java
@@ -1,3 +1,13 @@
+/*
+ * Copyright OpenSearch Contributors
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * The OpenSearch Contributors require contributions made to
+ * this file be licensed under the Apache-2.0 license or a
+ * compatible open source license.
+ *
+ */
+
 package org.opensearch.security.filter;
 
 import java.util.Optional;
diff --git a/src/main/java/org/opensearch/security/filter/SecurityResponse.java b/src/main/java/org/opensearch/security/filter/SecurityResponse.java
index 5041936d2e..1c6146d0e1 100644
--- a/src/main/java/org/opensearch/security/filter/SecurityResponse.java
+++ b/src/main/java/org/opensearch/security/filter/SecurityResponse.java
@@ -36,7 +36,6 @@ public class SecurityResponse {
 
     public SecurityResponse(final int status, final Exception e) {
         this.status = status;
-        populateHeaders(CONTENT_TYPE_APP_JSON);
         this.body = generateFailureMessage(e);
         this.contentType = XContentType.JSON.mediaType();
     }
diff --git a/src/test/java/org/opensearch/security/filter/SecurityRestUtilsTests.java b/src/test/java/org/opensearch/security/filter/SecurityRestUtilsTests.java
index 46b0e82f2a..50ae2157c9 100644
--- a/src/test/java/org/opensearch/security/filter/SecurityRestUtilsTests.java
+++ b/src/test/java/org/opensearch/security/filter/SecurityRestUtilsTests.java
@@ -1,3 +1,13 @@
+/*
+ * Copyright OpenSearch Contributors
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * The OpenSearch Contributors require contributions made to
+ * this file be licensed under the Apache-2.0 license or a
+ * compatible open source license.
+ *
+ */
+
 package org.opensearch.security.filter;
 
 import org.junit.Test;