Hi,

> I discovered that this error is caused by the transformation that
> java does to the escape syntax. It means at the moment that "{call
> SHOW_SUPPLIERS}" is transformed into "EXECUTE PROCEDURE null
> (SHOW_SUPPLIERS)". If Firebird uses ISQL the correct syntax must
> be "EXECUTE PROCEDURE SHOW_SUPPLIERS" without the null, isn't it?

This bug should have being fixed in RC3. Please ensure that you are
using latest version of the driver.

Thanks!
Roman