question: private void putParametersFromS3 ( String s3BucketName , String s3ObjectKey , Map < String , Object > parameters ) { if ( s3BucketName != null && s3ObjectKey != null ) { S3FileTransferRequestParamsDto s3FileTransferRequestParamsDto = storageHelper . getS3FileTransferRequestParamsDto ( ) ; Properties properties = s3Dao . getProperties ( s3BucketName , s3ObjectKey , s3FileTransferRequestParamsDto ) ; parameters . putAll ( javaPropertiesHelper . toMap ( properties ) ) ; } }
target:  Gets a Java properties from the given S3 location, and puts the key-value pairs into the given parameters. If either bucket name or object key is null, this method does nothing.