I am sorry to inform you but I just did and I still get the same Exception.

>>Some versions of Firebird on some platforms do not like following
>>parameters:

>>dataSource.setNonStandardProperty("isc_dpb_sweep", null);
>>dataSource.setNonStandardProperty("isc_dpb_num_buffers", "75");

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Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.692 / Virus Database: 453 - Release Date: 28/05/2004