We auto-port each version of Aspose.Diagram for Java API from its equivalent Aspose.Diagram for .NET API version, since this feature will also be incorporated in the Aspose.Diagram for Java API. For the confirmation purposes, we have logged the same feature request under the Java platform project as DIAGRAMJAVA-50519. We have linked your post to this ticket and will keep you informed regarding any available updates. We are sorry for the inconvenience caused.
The release of new version 17.8 is expected in the middle of next month (August, 2017). We will notify you once the new version is published.