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

        this.fields = new com.amazonaws.internal.SdkInternalList<Field>(fields);
    }
<p>
Key-value pairs that define the properties of the ReportTaskProgressInput object.
</p>

@param fields
       Key-value pairs that define the properties of the ReportTaskProgressInput object.
aws-java-sdk-datapipeline/src/main/java/com/amazonaws/services/datapipeline/model/ReportTaskProgressRequest.java