Hi,

> I use JBird v1.0 in my application and have strange exception during
> some updates/inserts:GDS Exception. operation was cancelled.
> ...
> Has anyone knows, what it means?

There was a bug long time ago (before release) that produced exactly
the same error. Please check if you have the latest released version
of driver. If yes, please create a reproducable test case for this bug.

Best regards,
Roman Rokytskyy