fixed SOS issue

Author: scmacdon

javav2/example_code/neptune/src/main/java/com/example/neptune/analytics/CreateNeptuneGraphExample.java

@@ -1,3 +1,6 @@
+// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+// SPDX-License-Identifier: Apache-2.0
+
 package com.example.neptune.analytics;
 
 import software.amazon.awssdk.auth.credentials.DefaultCredentialsProvider;