public void setFields(java.util.Collection<String> fields) {
        if (fields == null) {
            this.fields = null;
            return;
        }

        this.fields = new java.util.ArrayList<String>(fields);
    }
<p>
If the specified manifest object is in the <code>S3BatchOperations_CSV_20180820</code> format, this element
describes which columns contain the required data.
</p>

@param fields
       If the specified manifest object is in the <code>S3BatchOperations_CSV_20180820</code> format, this
       element describes which columns contain the required data.
@see JobManifestFieldName
aws-java-sdk-s3control/src/main/java/com/amazonaws/services/s3control/model/JobManifestSpec.java