> When I pass the parameter lc_ctype=??? I get various exceptions, e.g.
> "fetch problem: org.firebirdsql.gds.GDSException: request
> synchronization error", conversion errors or a NullPointerException in
> GDS_Impl.java:383.
>
> Without the parameter or with lc_ctype=NONE this doesn't happen; but
> then I don't get the euro symbol.
>
> Any ideas?

Strange... Can you create a standalone test case that reproduces this
error on empty database? This will simplify us life trying to
reproduce the bug.

Thanks,
Roman