Server.CheckinObjects does not create the WTPart when checkin a drawing with part in OTK Java

Hello everyone!

Please tell me why WTPart is not created?
here is my code:

CheckinOptions options = pfcServer.CheckinOptions_Create();
server.CheckinObjects(currDrw, options);

I did everything as indicated in this link:

https://www.ptc.com/en/support/article/CS272335?&language=en&posno=2&q=CheckinObjects&source=search

but still not working
Thanks in advance.

Regards!