> yes, indeed, with the value UTF-8 for the parameter charSet
>
> info.put ("charSet", "UTF-8");
>
> the connection was established.

The main difference to InterClient is that "charSet" requires Java
character set names, the "encoding" property - Firebird charsets. UTF8
is however defined in Firebird, the corresponding one in Java is UTF-8.

Please fill a bug report for Jaybird - there is some problem in name
resolution of the properties - it should not cause such exception. The
expected behavior would be an exception that the character set is unknown.

Roman