private void createAmazonS3Bucket() {
   try {
     if (tx.getAmazonS3Client().doesBucketExist(bucketName) == false) {
       tx.getAmazonS3Client().createBucket(bucketName);
     }
   } catch (AmazonClientException ace) {
     JOptionPane.showMessageDialog(
         frame,
         "Unable to create a new Amazon S3 bucket: " + ace.getMessage(),
         "Error Creating Bucket",
         JOptionPane.ERROR_MESSAGE);
   }
 }