public Long getCurrentApplicationVersionId() {
        return this.currentApplicationVersionId;
    }
<p>
The current application version. You can use the <a>DescribeApplication</a> operation to get the current
application version. If the version specified is not the current version, the
<code>ConcurrentModificationException</code> is returned.
</p>

@return The current application version. You can use the <a>DescribeApplication</a> operation to get the current
        application version. If the version specified is not the current version, the
        <code>ConcurrentModificationException</code> is returned.
aws-java-sdk-kinesisanalyticsv2/src/main/java/com/amazonaws/services/kinesisanalyticsv2/model/DeleteApplicationReferenceDataSourceRequest.java