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Steps : 1. Create a java platform Model UML project 2. Create a class diagram and add a class element to it 3. Name the class element and add an operation. 4. From the proprties window of the operation, bring up parameters window. 5. Crate a new parameter and click OK. 6. Open proprties window of the operation again. 7. Select created parameter, add multiplicaty, press 'Update' and 'Ok' Multiplicity is not be saved. It is not shown on diagram element and it doesn't appear in operation properties window if you open it again.
this bug is a Regression. Related issue 82980 is filed for similar sitoation that was reproducible in previous release.
*** Issue 84289 has been marked as a duplicate of this issue. ***
not reproducible
verified in coco_m17