> java.lang.RuntimeException: Failed to initilize Jaybird native
> library. This is most likley due to a failure to load the firebird
> client library.

Jaybird loaded the libjaybird21.so and called the native init method
with library name as a param. The native code does simple dload, but it
failed two times (one in attempt to load fbembed.dll, which is ok, next
and last by loading the libfbembed.so). So it looks like it cannot find
Firebird.

Is $FIREBIRD environment variable set? Is libfbembed.so in
$LD_LIBRARY_PATH? Did you check the firebird.log about any errors?

Roman